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Coordinates: 37°33′48″N 122°7′51″W / 37.56333°N 122.13083°W / 37.56333; -122.13083
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{{Lead too short|date=November 2021}}
{{Infobox river
{{Infobox river
| name = Alameda Creek
| name = Alameda Creek
| name_native =
| native_name =
| name_native_lang =
| native_name_lang =
| name_other = {{lang-es|Arroyo de la Alameda}}
| name_other = {{langx|es|Arroyo de la Alameda}}
| name_etymology = Spanish
| name_etymology = Spanish
<!---------------------- IMAGE & MAP -->
<!---------------------- IMAGE & MAP -->
| image = Bridgeatnilesrivercalifornia.JPG
| image = Mission Boulevard bridge over Alameda Creek (2), April 2024.JPG
| image_caption = Alameda Creek at Niles, Fremont
| image_caption = Alameda Creek at Niles, Fremont
| map =
| image_size = 300
| map_size =
| map = Alameda Creek Watershed.jpg
| map_caption =
| map_size = 300
| map_caption = Alameda Creek watershed ([https://mghydro.com/watersheds/shared/1CC248.html Interactive map])
| pushpin_map = USA California
| pushpin_map =
| pushpin_map_size =
| pushpin_map_size =
| pushpin_map_caption= Location of the mouth in California
| pushpin_map_caption=
<!---------------------- LOCATION -->
<!---------------------- LOCATION -->
| subdivision_type1 = Country
| subdivision_type1 = Country
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}}
}}


'''Alameda Creek''' ({{lang-es|'''Arroyo de la Alameda'''}}) is a large perennial [[stream]] in the [[San Francisco Bay Area]]. The creek runs for {{convert|45|mi|km|0}} from a lake northeast of Packard Ridge<ref name="gnis">{{gnis|1654946|Alameda Creek}}</ref> to the eastern shore of [[San Francisco Bay]] by way of [[Niles Canyon]] and a [[flood control]] channel. {{efn|One source describes Packard Ridge as being a few miles north of [[Mount Hamilton (California)|Mount Hamilton]] and a few miles east of [[Rattlesnake Butte]].<ref name="Clark">[https://books.google.com/books?id=xrcvAAAAYAAJ&dq=%22Packard+Ridge%22+CA&pg=PA11 Clark, William Otterbein. "Ground Water in Santa Clara County, California." p. 11. (1924). U. S. Department of the Interior. U.S. Geological Survey. Water Supply Paper 519. Available on Google Books.] Accessed August 1, 2017.</ref>}} Along its course, Alameda Creek provides wildlife habitat, water supply, a conduit for flood waters, opportunities for recreation, and a host of aesthetic and environmental values. The creek and three major reservoirs in the watershed are used as water supply by the [[San Francisco Public Utilities Commission]], [[Alameda County Water District]] and Zone 7 Water Agency. Within the watershed can be found some of the highest peaks (Mount Isabel and [[Mount Hamilton (California)|Mount Hamilton]]) and tallest waterfall (Murietta Falls) in the [[East Bay]], over a dozen regional parks, and notable natural landmarks such as the cascades at [[Little Yosemite (Alameda County)|Little Yosemite]] and the wildflower-strewn grasslands and oak savannahs of the [[Sunol Regional Wilderness]].
'''Alameda Creek''' ({{langx|es|'''Arroyo de la Alameda'''}}) is a large perennial [[stream]] in the [[San Francisco Bay Area]]. The creek runs for {{convert|45|mi|km|0}} from a lake northeast of Packard Ridge to the eastern shore of [[San Francisco Bay]] by way of [[Niles Canyon]] and a [[flood control]] channel.<ref name="gnis">{{gnis|1654946|Alameda Creek}}</ref>{{efn|One source describes Packard Ridge as being a few miles north of [[Mount Hamilton (California)|Mount Hamilton]] and a few miles east of [[Rattlesnake Butte]].<ref name="Clark">[https://books.google.com/books?id=xrcvAAAAYAAJ&dq=%22Packard+Ridge%22+CA&pg=PA11 Clark, William Otterbein. "Ground Water in Santa Clara County, California." p. 11. (1924). U.S. Department of the Interior. U.S. Geological Survey. Water Supply Paper 519.] Accessed August 1, 2017.</ref>}} Along its course, Alameda Creek provides wildlife habitat, water supply, a conduit for flood waters, opportunities for recreation, and a host of aesthetic and environmental values. The creek and three major reservoirs in the watershed are used as water supply by the [[San Francisco Public Utilities Commission]], [[Alameda County Water District]] and Zone 7 Water Agency. Within the watershed can be found some of the highest peaks (Mount Isabel and [[Mount Hamilton (California)|Mount Hamilton]]) and tallest waterfall (Murietta Falls) in the [[East Bay]], over a dozen regional parks, and notable natural landmarks such as the cascades at [[Little Yosemite (Alameda County)|Little Yosemite]] and the wildflower-strewn grasslands and oak savannahs of the [[Sunol Regional Wilderness]].

After an absence of half a century, ocean-run steelhead trout are able to return to Alameda Creek to mingle with remnant [[rainbow trout]] populations. Completion of a series of dam removal and fish passage projects, along with improved stream flows for cold-water fish and planned habitat restoration, enable [[steelhead trout]] and [[Chinook salmon]] to access up to {{convert|20|mi|km}} of spawning and rearing habitat in Alameda Creek and its tributaries.<ref>{{cite web |title=Alameda Creek Watershed Overview |publisher=Alameda Creek Coalition |url=http://alamedacreek.org/learn-more/overview-watershed.php |accessdate=January 31, 2022}}</ref> The first juvenile trout migrating downstream from the upper watershed through lower Alameda Creek toward San Francisco Bay was detected and documented in April 2023.<ref name="first juvenile trout">{{cite web |title=Steelhead Get Boost in Alameda Creek Thanks to Restoration Efforts |url=https://sfpuc.org/about-us/news/steelhead-get-boost-alameda-creek-thanks-restoration-efforts |website=sfpuc.org |access-date=5 May 2023 |date=April 24, 2023}}</ref>
After an absence of half a century, ocean-run [[steelhead trout]] are able to return to Alameda Creek to mingle with remnant [[rainbow trout]] populations. Completion of a series of dam removal and fish passage projects, along with improved stream flows for cold-water fish and planned habitat restoration, enable steelhead trout and [[Chinook salmon]] to access up to {{convert|20|mi|km}} of spawning and rearing habitat in Alameda Creek and its tributaries.<ref>{{cite web |title=Alameda Creek Watershed Overview |publisher=Alameda Creek Coalition |url=http://alamedacreek.org/learn-more/overview-watershed.php |accessdate=January 31, 2022}}</ref> The first juvenile trout migrating downstream from the upper watershed through lower Alameda Creek toward San Francisco Bay was detected and documented in April 2023.<ref name="first juvenile trout">{{cite web |title=Steelhead Get Boost in Alameda Creek Thanks to Restoration Efforts |url=https://sfpuc.org/about-us/news/steelhead-get-boost-alameda-creek-thanks-restoration-efforts |website=sfpuc.org |access-date=5 May 2023 |date=April 24, 2023}}</ref>


==History==
==History==
Whereas other Bay Area streams flow down from, or around, mountain ranges, Alameda Creek is unique in that it cuts ''across'' the Diablo Range at [[Niles Canyon]]. To geologists this is evidence that it is an [[antecedent stream]] that existed prior to the rise of the East Bay hills about a million years ago. As the mountain range was lifted by tectonic forces, the creek kept pace by eroding the canyon which continues to this day. The large [[alluvial fan]] under [[Fremont, California|Fremont]], [[Newark, California|Newark]], and [[Union City, California|Union City]] which juts into [[San Francisco Bay]] is further evidence that this creek has been in place for a very long time.<ref>{{cite book |last1=Sloan |first1=Doris |title=Geology of the San Francisco Bay Region |location=Berkeley, California |publisher=University of California Press |year=2006 |page=225 |isbn=978-0-520-24126-8 }}</ref>
Whereas other Bay Area streams flow down from, or around, mountain ranges, Alameda Creek is unique in that it cuts ''across'' the Diablo Range at [[Niles Canyon]]. To geologists this is evidence that it is an [[antecedent stream]] that existed prior to the rise of the East Bay hills about a million years ago. As the mountain range was lifted by tectonic forces, the creek kept pace by eroding the canyon, which continues to this day. The large [[alluvial fan]] under [[Fremont, California|Fremont]], [[Newark, California|Newark]], and [[Union City, California|Union City]] which juts into [[San Francisco Bay]] is further evidence that this creek has been in place for a very long time.<ref>{{cite book |last1=Sloan |first1=Doris |title=Geology of the San Francisco Bay Region |location=Berkeley, California |publisher=University of California Press |year=2006 |page=225 |isbn=978-0-520-24126-8 }}</ref>


Five Spanish expeditions led by [[Gaspar de Portolà|Portolà]], [[José Francisco Ortega|Ortega]], [[Pedro Fages|Fages]], [[Juan Bautista de Anza|Anza]] and Amador passed over Alameda Creek between 1769 and 1795. [[El Camino Viejo]] between [[Pleasanton, California|Pleasanton]] and [[Mission Pass (Alameda County)|Mission Pass]] crossed it near [[Sunol, California|Sunol]]. [[Mission San José (California)|Mission San José]], in [[Fremont, California|Fremont]], was dedicated in 1797. The Mission thrived for 49 years until the Mexican Government's Secularization Order liquidated mission lands in 1834. Alameda Creek was the boundary of the mission lands and the {{convert|17000|acre|km2|adj=on}} Rancho Arroyo de la Alameda granted to Jose de Jesus Vallejo, who built a [[Vallejo Flour Mill|flour mill]] near the mouth of Niles Canyon. The mill and the importance of the canyon as a passage through the hills led to growth of Niles (which in 1956 became part of Fremont, California) in the 1850s. A favorable climate, excellent soils, and a fast-growing population helped agriculture to boom. Early roads led to landings where small ships would load grain and other foodstuffs for transport to market.
Five Spanish expeditions led by [[Gaspar de Portolà|Portolà]], [[José Francisco Ortega|Ortega]], [[Pedro Fages|Fages]], [[Juan Bautista de Anza|Anza]] and Amador passed over Alameda Creek between 1769 and 1795. [[El Camino Viejo]] between [[Pleasanton, California|Pleasanton]] and [[Mission Pass (Alameda County)|Mission Pass]] crossed it near [[Sunol, California|Sunol]]. [[Mission San José (California)|Mission San José]], in Fremont, was dedicated in 1797. The Mission thrived for 49 years until the Mexican government's [[Mexican secularization act of 1833|Secularization Order]] liquidated mission lands in 1834. Alameda Creek was the boundary of the mission lands and the {{convert|17000|acre|km2|adj=on}} Rancho Arroyo de la Alameda granted to Jose de Jesus Vallejo, who built a [[Vallejo Flour Mill|flour mill]] near the mouth of Niles Canyon. The mill and the importance of the canyon as a passage through the hills led to growth of Niles (which in 1956 became part of Fremont, California) in the 1850s. A favorable climate, excellent soils, and a fast-growing population helped agriculture to boom. Early roads led to landings where small ships would load grain and other foodstuffs for transport to market.


Alameda Creek is the most important stream in [[Alameda County, California|Alameda County]]. From this Creek is derived the name of the County. Alameda Creek was the former boundary between Contra Costa and Santa Clara Counties during the period from 1850, when Contra Costa and Santa Clara Counties were formed, to 1853 when Alameda County was carved from the two Counties. The portion of Alameda County south of Alameda Creek is the only part of Alameda County that is not derived from Contra Costa County.<ref name="Thompson&West 1878">{{cite book |last1=Thompson & West |title=Official and historical atlas map of Alameda County, California |date=1878 |publisher=Valley Publishers |location=Fresno, CA |isbn=0913548340 |edition=Bicentennial 1976}}</ref>{{rp|17,26}}
Alameda Creek is the most important stream in [[Alameda County, California|Alameda County]], which was named after it. It was the boundary between Contra Costa and Santa Clara counties between 1850, when Contra Costa and Santa Clara counties were formed, to 1853, when Alameda County was carved from the two counties. The portion of Alameda County south of Alameda Creek is the only part of Alameda County that is not derived from Contra Costa County.<ref name="Thompson&West 1878">{{cite book |last1=Thompson & West |title=Official and historical atlas map of Alameda County, California |date=1878 |publisher=Valley Publishers |location=Fresno, CA |isbn=0913548340 |edition=Bicentennial 1976}}</ref>{{rp|17,26}}


[[File:Central Pacific Railroad, and Alameda Creek. (26268982186).jpg|left|thumb|Central Pacific Railroad, and Alameda Creek. Stereo photo taken between 1867 and 1869.]]
[[File:Central Pacific Railroad, and Alameda Creek. (26268982186).jpg|left|thumb|Central Pacific Railroad, and Alameda Creek. Stereo photo taken between 1867 and 1869.]]
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The creek bed had once been used as a [[gravel quarry]].<ref>[http://www.water.ca.gov/lgagrant/docs/applications/Alameda%20County%20Water%20District%20(201209870035)/Att03_LGA12_ACWD_GWMP_4of5.pdf Chen, E., McMahon, P., Shorno, A., By, F., Bautista, J., Goza, G., ... & Inn, S. D. (2012). Alameda County Water District, Engineering Department, Groundwater Resources Division.]</ref> When the gravel pits were flooded by water purchased by the public for [[groundwater recharge]] of the [[Niles Cone]], the gravel harvesters began to daily pump out enough water to meet the needs of 30,000 people down the creek into San Francisco Bay.<ref>[http://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?article=1111&context=elq Victor E. Gleason, ''Water Projects Go Underground'', 5 Ecology L.Q. (1976)] discussing [https://scholar.google.com/scholar_case?case=15653618963212166716&hl=en&as_sdt=2006 ''Niles Sand & Gravel v. Alameda County Water Dist.'', 37 Cal. App. 3d 924, 112 Cal. Rptr. 846 (Ct. App. 1974).]</ref> After the pumping was declared to be an illegal [[waste (law)|waste]] the [[Alameda County Water District]] acquired the quarry in 1975.<ref>{{cite web|url=http://www.ebparks.org/parks/quarry_lakes|publisher=East Bay Regional Park District|title=Quarry Lakes Recreation Area}}</ref>
The creek bed had once been used as a [[gravel quarry]].<ref>[http://www.water.ca.gov/lgagrant/docs/applications/Alameda%20County%20Water%20District%20(201209870035)/Att03_LGA12_ACWD_GWMP_4of5.pdf Chen, E., McMahon, P., Shorno, A., By, F., Bautista, J., Goza, G., ... & Inn, S. D. (2012). Alameda County Water District, Engineering Department, Groundwater Resources Division.]</ref> When the gravel pits were flooded by water purchased by the public for [[groundwater recharge]] of the [[Niles Cone]], the gravel harvesters began to daily pump out enough water to meet the needs of 30,000 people down the creek into San Francisco Bay.<ref>[http://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?article=1111&context=elq Victor E. Gleason, ''Water Projects Go Underground'', 5 Ecology L.Q. (1976)] discussing [https://scholar.google.com/scholar_case?case=15653618963212166716&hl=en&as_sdt=2006 ''Niles Sand & Gravel v. Alameda County Water Dist.'', 37 Cal. App. 3d 924, 112 Cal. Rptr. 846 (Ct. App. 1974).]</ref> After the pumping was declared to be an illegal [[waste (law)|waste]] the [[Alameda County Water District]] acquired the quarry in 1975.<ref>{{cite web|url=http://www.ebparks.org/parks/quarry_lakes|publisher=East Bay Regional Park District|title=Quarry Lakes Recreation Area}}</ref>


In May 2015, vandals damaged an [[Inflatable rubber dam|inflatable dam]] across the creek in Fremont, releasing 50 million gallons (190 million litres) of drinking water into San Francisco Bay.<ref>{{Cite web|url=http://www.nbcbayarea.com/news/local/East-Bay-Loses-50-Million-Gallons-of-Water-After-Vandals-Destroy-Dam-304782741.html|title = East Bay Loses 50 Million Gallons of Water After Vandals Destroy Dam}}</ref>
In May 2015, vandals damaged an [[Inflatable rubber dam|inflatable dam]] across the creek in Fremont, releasing 50 million gallons (190 million litres) of drinking water into San Francisco Bay.<ref>{{Cite web|url=http://www.nbcbayarea.com/news/local/East-Bay-Loses-50-Million-Gallons-of-Water-After-Vandals-Destroy-Dam-304782741.html|title = East Bay Loses 50 Million Gallons of Water After Vandals Destroy Dam| date=23 May 2015 }}</ref>


==Alameda Creek watershed==
==Alameda Creek watershed==
[[File:Alameda_Creek_west_of_Niles_3325.JPG|thumb|Alameda Creek at the flats of Niles where it has emerged from the Niles Canyon.]]
[[File:Alameda_Creek_west_of_Niles_3325.JPG|thumb|Alameda Creek at the flats of Niles where it has emerged from the Niles Canyon]]


Alameda Creek is the largest [[drainage basin|watershed]] within the southern San Francisco Bay, draining 700 square miles (1,813 square kilometers), or about 20% of the total drainage area for the South Bay.<ref name=SFEI>{{cite report |title=Ecology, Assemblage Structure,Distribution, and Status of Fishes in Streams Tributary to the San Francisco Estuary, California |author =Robert A. Leidy |publisher=San Francisco Estuary Institute |date=April 2007 |url=http://www.sfei.org/leidy_No530/index.html |access-date=June 22, 2010 }}</ref> Two-thirds of the watershed is in [[Alameda County, California|Alameda County]] including the reach through the [[Sunol Valley]], the rest is in [[Santa Clara County, California|Santa Clara County]]. The tributaries of Alameda creek include [[Arroyo de la Laguna]], [[Arroyo Valle]], [[San Antonio Creek (Alameda County)|San Antonio Creek]] and [[Calaveras Creek (California)|Calaveras Creek]], whose main tributary is [[Arroyo Hondo (Santa Clara County, California)|Arroyo Hondo]]. The watershed includes three man-made reservoirs: [[Lake Del Valle]], [[San Antonio Reservoir (Alameda County)|San Antonio Reservoir]] and [[Calaveras Reservoir]].<ref name=Steelhead>{{cite report|title=An Assessment of the Potential for Restoring a Viable Steelhead Trout Population in the Alameda Creek Watershed |author1=Andrew J. Gunther |author2=Jeffrey Hagar |author3=Paul Salop |date=2000-02-07 |publisher=Alameda Creek Fisheries Restoration Workgroup |url=http://www.amarine.com/information/accwp/pdf/acfishrpt.pdf |access-date=June 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20090730223857/http://www.amarine.com/information/accwp/pdf/acfishrpt.pdf |archive-date=July 30, 2009 }}</ref>
Alameda Creek is the largest [[drainage basin|watershed]] within the southern San Francisco Bay, draining 700 square miles (1,813 square kilometers), or about 20% of the total drainage area for the South Bay.<ref name=SFEI>{{cite report |title=Ecology, Assemblage Structure,Distribution, and Status of Fishes in Streams Tributary to the San Francisco Estuary, California |author =Robert A. Leidy |publisher=San Francisco Estuary Institute |date=April 2007 |url=http://www.sfei.org/leidy_No530/index.html |access-date=June 22, 2010 }}</ref> Two-thirds of the watershed is in [[Alameda County, California|Alameda County]] including the reach through the [[Sunol Valley]], the rest is in [[Santa Clara County, California|Santa Clara County]]. The tributaries of Alameda creek include [[Arroyo de la Laguna]], [[Arroyo Valle]], [[San Antonio Creek (Alameda County)|San Antonio Creek]] and [[Calaveras Creek (California)|Calaveras Creek]], whose main tributary is [[Arroyo Hondo (Santa Clara County, California)|Arroyo Hondo]]. The watershed includes three man-made reservoirs: [[Lake Del Valle]], [[San Antonio Reservoir (Alameda County)|San Antonio Reservoir]] and [[Calaveras Reservoir]].<ref name=Steelhead>{{cite report|title=An Assessment of the Potential for Restoring a Viable Steelhead Trout Population in the Alameda Creek Watershed |author1=Andrew J. Gunther |author2=Jeffrey Hagar |author3=Paul Salop |date=2000-02-07 |publisher=Alameda Creek Fisheries Restoration Workgroup |url=http://www.amarine.com/information/accwp/pdf/acfishrpt.pdf |access-date=June 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20090730223857/http://www.amarine.com/information/accwp/pdf/acfishrpt.pdf |archive-date=July 30, 2009 }}</ref>
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* [[Arroyo Mocho]] – the reach extending upstream from the confluence with Arroyo de la Laguna through the [[Amador Valley|Livermore–Amador Valley]] and into unincorporated ranch and agricultural lands<ref name=Steelhead/>
* [[Arroyo Mocho]] – the reach extending upstream from the confluence with Arroyo de la Laguna through the [[Amador Valley|Livermore–Amador Valley]] and into unincorporated ranch and agricultural lands<ref name=Steelhead/>


A more comprehensive list inclusive of minor as well as major named tributaries includes (from top of mainstem heading downstream) Valpe Creek (right), Bear Gulch (right), Whitlock Creek (right), Calaveras Creek (left), Leyden Creek (left), Indian Joe Creek (right), Welch Creek (right), Haynes Gulch (left), Pirate Creek (left), San Antonio Creek (right), Arroyo de la Laguna (right), Stonybrook Canyon (right) and Dry Creek (right). Alameda Creek now runs through the man-made Alameda Creek flood channel near the Bay, the latter is parallel to and south of the old Alameda Creek channel. Ward Creek is tributary to old Alameda Creek.<ref>{{cite web |title=Ward Creek |publisher=Oakland Museum |url=http://museumca.org/creeks/1320-OMWard.html# |access-date=2013-01-27 }}</ref>
A more comprehensive list inclusive of minor as well as major named tributaries includes (from top of mainstem heading downstream) Valpe Creek (right), Bear Gulch (right), Whitlock Creek (right), Calaveras Creek (left), Leyden Creek (left), Indian Joe Creek (right), Welch Creek (right), Haynes Gulch (left), Pirate Creek (left), San Antonio Creek (right), Arroyo de la Laguna (right), Stonybrook Canyon (right) and Dry Creek (right). Alameda Creek now runs through the man-made Alameda Creek flood channel near the Bay, the latter is parallel to and south of the old Alameda Creek channel. Ward Creek is a tributary to old Alameda Creek.<ref>{{cite web |title=Ward Creek |publisher=Oakland Museum |url=http://museumca.org/creeks/1320-OMWard.html# |access-date=2013-01-27 }}</ref>


==Ecology, past and present==
==Ecology, past and present==
[[File:Alameda Creek in Niles Canyon 2626.JPG|thumb|left|Alameda Creek in Niles Canyon.]]
[[File:Alameda Creek in Niles Canyon 2626.JPG|thumb|left|Alameda Creek in Niles Canyon.]]
Alameda Creek historically supported spawning runs of at least three salmonid species: [[steelhead]] (the [[anadromous]] form of the coastal rainbow trout ''Oncorhynchus mykiss irideus''),<ref name=Leidy1>{{cite journal |title=Historical distribution and current status of steelhead/rainbow trout (Oncorhynchus mykiss) in streams of the San Francisco Estuary, California |author1=Leidy, R.A. |author2=G.S. Becker |author3=B.N. Harvey |year=2005 |journal=Center for Ecosystem Management and Restoration |location=Oakland, CA |url=http://www.cemar.org/pdf/solano.pdf |access-date=June 22, 2010 }}</ref> [[coho salmon]] (''Oncorhynchus kisutch'')<ref name=Leidy2>{{cite journal |title=Historical Status of Coho Salmon in Streams of the Urbanized San Francisco Estuary, California |author1= Robert A. Leidy |author2=Gordon Becker |author3=Brett N. Harvey |year=2005 |journal=California Fish and Game |volume=91 |issue=4 |pages=219–254 |url=http://www.cemar.org/pdf/coho.pdf |access-date=June 22, 2010 }}</ref> and [[chinook salmon]] (''Oncorhynchus tshawytscha'').<ref name=Gobalet/> Confirmation that adult steelhead recently captured attempting to migrate into the Alameda Creek watershed, and the rainbow trout sampled in the upper watershed (trapped above complete migration barriers), are native fish that have their closest genetic associations with other populations within the federally threatened steelhead [[Central Coast (California)|Central California Coast]] [[Evolutionarily Significant Unit]] has spurred a major effort to restore this historically important steelhead stream by removing barriers to migration and improving habitat quality.<ref name=Steelhead/> Since steelhead in the Bay Area and California's Central Coast were listed as threatened under the [[Endangered Species Act]] in 1997, numerous organizations, including the [http://www.alamedacreek.org/ Alameda Creek Alliance], and governmental agencies have cooperated on restoration projects to allow migratory fish from the Bay to reach spawning habitat in upper Alameda Creek, beginning in 1999.<ref name=Dam/>
Alameda Creek historically supported spawning runs of at least three salmonid species: [[steelhead]] (the [[anadromous]] form of the coastal rainbow trout ''Oncorhynchus mykiss irideus''),<ref name=Leidy1>{{cite journal |title=Historical distribution and current status of steelhead/rainbow trout (Oncorhynchus mykiss) in streams of the San Francisco Estuary, California |author1=Leidy, R.A. |author2=G.S. Becker |author3=B.N. Harvey |year=2005 |journal=Center for Ecosystem Management and Restoration |location=Oakland, CA |url=http://www.cemar.org/pdf/solano.pdf |access-date=June 22, 2010 }}</ref> [[coho salmon]] (''Oncorhynchus kisutch'')<ref name=Leidy2>{{cite journal |title=Historical Status of Coho Salmon in Streams of the Urbanized San Francisco Estuary, California |author1= Robert A. Leidy |author2=Gordon Becker |author3=Brett N. Harvey |year=2005 |journal=California Fish and Game |volume=91 |issue=4 |pages=219–254 |url=http://www.cemar.org/pdf/coho.pdf |access-date=June 22, 2010 }}</ref> and [[chinook salmon]] (''Oncorhynchus tshawytscha'').<ref name=Gobalet/>

=== Steelhead ===
⚫
Alameda Creek is considered a potential ‘anchor watershed’ for steelhead, regionally significant for restoration of the threatened trout to the entire Bay Area, although by the late 1950s the [[California Department of Fish and Game]] decided the steelhead run was no longer viable due to numerous man-made barriers to fish runs. By the early 1970s the [[United States Army Corps of Engineers|Army Corps of Engineers]] channeled and [[riprap|rip-rapped]] the lower {{convert|12|mi|km}} of the creek.<ref>{{cite news |title=Water district dedicates two projects along Fremont creek |author =Wes Bowers |date=2010-06-24 |newspaper=Fremont Bulletin |url=http://www.mercurynews.com/fremont/ci_15370244?nclick_check=1 |access-date=2010-07-01 }}</ref> The last steelhead and coho salmon runs in the 20th century were seen in the lower creek in 1964, the latter confirmed by photographic records.<ref name="Leidy2" />

Confirmation that adult steelhead captured attempting to migrate into the Alameda Creek watershed, and the rainbow trout sampled in the upper watershed (trapped above complete migration barriers), were native fish associated with the federally threatened steelhead [[Central Coast (California)|Central California Coast]] [[Evolutionarily Significant Unit]] spurred a major effort to restore this historically important steelhead stream by removing barriers to migration and improving habitat quality.<ref name="Steelhead" /> Since steelhead in the Bay Area and California's Central Coast were listed as threatened under the [[Endangered Species Act]] in 1997, numerous organizations, including the [http://www.alamedacreek.org/ Alameda Creek Alliance], and governmental agencies have cooperated on restoration projects to allow migratory fish from the Bay to reach spawning habitat in upper Alameda Creek, beginning in 1999.<ref name="Dam" /> This coalition of agencies and organizations is called the Alameda Creek Fisheries Restoration Workgroup.<ref name=":0">{{Cite news |last=Stein |first=Carolyn |date=June 28, 2024 |title='Phenomenal': Species rebounds in Bay Area creek |url=https://www.sfchronicle.com/climate/article/steelhead-trout-alameda-creek-19540239.php |access-date=June 28, 2024 |work=[[San Francisco Chronicle]]}}</ref>


⚫
In 2009, the [[Alameda County Water District]] removed a rubber dam that blocked trout passage in the lower creek, adjacent to [[Quarry Lakes Regional Recreation Area|Quarry Lakes Regional Park]]. In June, 2010 environmentalists and water district officials celebrated the removal of a dam on Alameda Creek in Fremont, and the planned installation of fish ladders to allow salmonids to bypass two other dams on the lower creek.<ref name="Dam">{{cite news |title=Steelhead trout, salmon closer to Alameda Creek return |author =Matthew Artz |date=2010-06-24 |newspaper=Oakland Tribune |url=http://www.insidebayarea.com/argus/localnews/ci_15360649 |access-date=2010-07-01 }}</ref> At the same time, [[Pacific Gas and Electric Company|PG&E]] worked to modify a cement barrier farther upstream in [[Sunol, California|Sunol]] to help steelhead swim farther into the watershed, water officials said. Ground was broken on the first ladder the [[Alameda County Water District]] was building in April 2018, just west of the Mission Boulevard overcrossing in the Niles district of Fremont, allowing passage around a rubber dam. The second ladder, which was planned to start construction in 2019, is about a mile downstream at the concrete structure, called a [[weir]]. The two ladders were funded by nearly $10 million in grants from several agencies, including $5.36 million from the California Wildlife Conservation Board and $3 million from the California Natural Resources Agency.<ref>{{cite news |title=Work begins on $10 million Alameda Creek fish ladders |author=Joseph Geha |newspaper=East Bay Times |date=April 26, 2018 |url=https://www.eastbaytimes.com/2018/04/26/work-begins-on-10-million-alameda-creek-fish-ladders/ |access-date=January 15, 2019 }}</ref> The goal was that when those projects were completed in 2021, steelhead would be able to migrate upstream to spawning habitats in the Sunol Valley for the first time in a half-century.<ref name="Dam" />
⚫
Alameda Creek is considered a potential ‘anchor watershed’ for steelhead, regionally significant for restoration of the threatened trout to the entire Bay Area, although by the late 1950s the [[California Department of Fish and Game]] decided the steelhead run was no longer viable due to numerous man-made barriers to fish runs. By the early 1970s the [[United States Army Corps of Engineers|Army Corps of Engineers]] channeled and [[riprap|rip-rapped]] the lower {{convert|12|mi|km}} of the creek.<ref>{{cite news |title=Water district dedicates two projects along Fremont creek |author =Wes Bowers |date=2010-06-24 |newspaper=Fremont Bulletin |url=http://www.mercurynews.com/fremont/ci_15370244?nclick_check=1 |access-date=2010-07-01 }}</ref> The last steelhead and coho salmon runs were seen in the lower creek in 1964, the latter confirmed by photographic records.<ref name=Leidy2/> Recent physical evidence has proved that the southern limit of coastal Chinook salmon included the southernmost tributaries of South San Francisco Bay.<ref>{{cite journal |title=Ancient DNA analysis of archaeological specimens extends Chinook salmon's known historic range to San Francisco Bay's tributaries and southernmost watershed |author1=Richard B. Lanman |author2=Linda Hylkema |author3=Cristie M. Boone |author4=Brian Allee |author5=Roger O. Castillo |author6=Stephanie A. Moreno |author7=Mary Faith Flores |author8=Upuli DeSilva |author9=Brittany Bingham |author10=Brian M. Kemp |journal=PLOS ONE |year=2021 |volume=16 |number=4 |page=e0244470 |doi=10.1371/journal.pone.0244470 |pmid=33857143 |pmc=8049268 |bibcode=2021PLoSO..1644470L |doi-access=free }}</ref>


In April 2023, one juvenile steelhead was found in the creek.<ref>{{cite news |author=Jeanita Lyman |date=2023-05-04 |title=Rainbow trout in Alameda Creek signals return of normal migration |url=https://www.pleasantonweekly.com/news/2023/05/04/rainbow-trout-in-alameda-creek-signals-return-of-normal-migration |access-date=2023-09-26 |newspaper=Pleasanton Weekly}}</ref> The following year, monitoring by the [[San Francisco Public Utilities Commission]] recorded 50 tagged steelhead making the migration up Alameda Creek to the San Francisco Bay.<ref name=":0" />
⚫
In 2009, the [[Alameda County Water District]] removed a rubber dam that blocked trout passage in the lower creek, adjacent to [[Quarry Lakes Regional Recreation Area|Quarry Lakes Regional Park]]. In June, 2010 environmentalists and water district officials celebrated the removal of a dam on Alameda Creek in Fremont, and the planned installation of fish ladders to allow salmonids to bypass two other dams on the lower creek.<ref name=Dam>{{cite news |title=Steelhead trout, salmon closer to Alameda Creek return |author =Matthew Artz |date=2010-06-24 |newspaper=Oakland Tribune |url=http://www.insidebayarea.com/argus/localnews/ci_15360649 |access-date=2010-07-01 }}</ref> At the same time, [[Pacific Gas and Electric Company|PG&E]] is working to modify a cement barrier farther upstream in [[Sunol, California|Sunol]] to help steelhead swim farther into the watershed, water officials said. Ground was broken on the first ladder the [[Alameda County Water District]] is building in April 2018 and is just west of the Mission Boulevard overcrossing in the Niles district of Fremont, allowing passage around a rubber dam. The second ladder, which should start construction in 2019, is about a mile downstream at the concrete structure, called a [[weir]]. The two ladders are funded by nearly $10 million in grants from several agencies, including $5.36 million from the California Wildlife Conservation Board and $3 million from the California Natural Resources Agency.<ref>{{cite news |title=Work begins on $10 million Alameda Creek fish ladders |author=Joseph Geha |newspaper=East Bay Times |date=April 26, 2018 |url=https://www.eastbaytimes.com/2018/04/26/work-begins-on-10-million-alameda-creek-fish-ladders/ |access-date=January 15, 2019 }}</ref> When those projects are completed in 2021, steelhead will be able to migrate upstream to spawning habitats in the Sunol Valley for the first time in a half-century.<ref name=Dam/>


=== Other fish ===
California's archaeological record has contributed to knowledge of the prehistoric distribution of fishes in Alameda Creek and its tributaries including [[Sacramento perch]] (''Archoplites interruptus''), Sacramento suckers (''[[Catostomus]] occidentalis occidentalis''), [[Tule perch]] (''Hysterocarpus traskii''), [[Lavinia (fish)|Hitches]] (''Lavinia exilicauda''), [[Hardhead]]s (''Mylopharodon conocephalus''), [[Sacramento blackfish]], and Sacramento pikeminnow (''[[Ptychocheilus]] grandis'').<ref name=Gobalet>{{cite journal |title=Archaeological Perspectives on Native American Fisheries of California, with Emphasis on Steelhead and Salmon |author =Kenneth W. Gobalet |journal=Transactions of the American Fisheries Society |pages=801–833 |year=2004 |url=http://afsjournals.org/doi/abs/10.1577/T02-084.1 |access-date=June 22, 2010 |doi=10.1577/T02-084.1|display-authors=etal |volume=133|issue =4 }}</ref> Many of these fishes still occupy the creek, although the number of introduced exotic fishes continues to increase. Exotic fish species such as the [[Largemouth bass|largemouth]] and [[Smallmouth bass]]es (''Micropterus salmoides'' and ''Micropterus dolomieui'') respectively, were introduced to Alameda Creek (and the [[Napa River]]) by Livingston Stone in 1874.<ref name=Skinner>{{cite journal|title=The Freshwater Fish and Fisheries of the San Francisco Bay Area |editor=Skinner, John E. |journal=An Historical Review of the Fish and Wildlife Resources of the San Francisco Bay Area |author=John E. Skinner |year=1962 |url=http://www.estuaryarchive.org/archive/skinner_1962/7/ |access-date=June 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110726035220/http://www.estuaryarchive.org/archive/skinner_1962/7/ |archive-date=July 26, 2011 }}</ref>
California's archaeological record has contributed to knowledge of the prehistoric distribution of fishes in Alameda Creek and its tributaries including [[Sacramento perch]] (''Archoplites interruptus''), Sacramento suckers (''[[Catostomus]] occidentalis occidentalis''), [[Tule perch]] (''Hysterocarpus traskii''), [[Lavinia (fish)|Hitches]] (''Lavinia exilicauda''), [[Hardhead]]s (''Mylopharodon conocephalus''), [[Sacramento blackfish]], and Sacramento pikeminnow (''[[Ptychocheilus]] grandis'').<ref name="Gobalet">{{cite journal |title=Archaeological Perspectives on Native American Fisheries of California, with Emphasis on Steelhead and Salmon |author =Kenneth W. Gobalet |journal=Transactions of the American Fisheries Society |pages=801–833 |year=2004 |url=http://afsjournals.org/doi/abs/10.1577/T02-084.1 |access-date=June 22, 2010 |doi=10.1577/T02-084.1|display-authors=etal |volume=133|issue =4 }}</ref> Recent physical evidence has proved that the southern limit of coastal Chinook salmon included the southernmost tributaries of South San Francisco Bay.<ref>{{cite journal |author1=Richard B. Lanman |author2=Linda Hylkema |author3=Cristie M. Boone |author4=Brian Allee |author5=Roger O. Castillo |author6=Stephanie A. Moreno |author7=Mary Faith Flores |author8=Upuli DeSilva |author9=Brittany Bingham |author10=Brian M. Kemp |year=2021 |title=Ancient DNA analysis of archaeological specimens extends Chinook salmon's known historic range to San Francisco Bay's tributaries and southernmost watershed |journal=PLOS ONE |volume=16 |page=e0244470 |bibcode=2021PLoSO..1644470L |doi=10.1371/journal.pone.0244470 |pmc=8049268 |pmid=33857143 |doi-access=free |number=4}}</ref> Many of these fishes still occupy the creek, although the number of introduced exotic fishes continues to increase. Exotic fish species such as the [[Largemouth bass|largemouth]] and [[Smallmouth bass]]es (''Micropterus salmoides'' and ''Micropterus dolomieui'') respectively, were introduced to Alameda Creek (and the [[Napa River]]) by Livingston Stone in 1874.<ref name="Skinner">{{cite journal|title=The Freshwater Fish and Fisheries of the San Francisco Bay Area |editor=Skinner, John E. |journal=An Historical Review of the Fish and Wildlife Resources of the San Francisco Bay Area |author=John E. Skinner |year=1962 |url=http://www.estuaryarchive.org/archive/skinner_1962/7/ |access-date=June 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110726035220/http://www.estuaryarchive.org/archive/skinner_1962/7/ |archive-date=July 26, 2011 }}</ref>


=== Beaver ===
[[File:Alameda Creek - panoramio.jpg|thumb|A view of the Mission Blvd bridge at Alameda Creek.]]
[[File:Alameda Creek - panoramio.jpg|thumb|A view of the Mission Blvd bridge at Alameda Creek.]]
There is historical evidence of [[North American beaver|beaver]] in the Alameda Creek watershed. In 1828 fur trapper Michel La Framboise travelled to "the missions of [[Mission San José (California)|San José]], [[Mission San Francisco Solano|San Francisco Solano]] and [[Mission San Rafael Arcángel|San Rafael Arcángel]]. La Framboise stated that "the Bay of San Francisco abounds in beaver", and that he "made his best hunt in the vicinity of the missions".<ref>{{cite journal |title=Fur Brigade to the Bonaventura: John Work's California Expedition of 1832-33 for the Hudson's Bay Company (Continued) |author1=Alice Bay Maloney |author2=John Work |journal=California Historical Society Quarterly |date=December 1943 |page=343 |jstor=25155808 |volume=22|issue=4 }}</ref> [[Alexander Roderick McLeod]] reported on the progress of the first Hudson's Bay Company fur brigade sent to California in 1829, "Beaver is become an article of traffic on the Coast as at the Mission of St. Joseph alone upwards of Fifteen hundred Beaver Skins were collected from the natives at a trifling value and sold to Ships at 3 Dollars".<ref name=McLeod>{{cite book |title=A. R. McLeod, Esq. to John McLoughlin, Esq.Dated Fort Vancouver 15 Feby. 1830, in The Hudson's Bay Company's First Fur Brigade to the Sacramento Valley: Alexander McLeod's 1829 Hunt |author =Nunis, Doyce |year=1968 |publisher=The Sacramento Book Collectors Club |location=Fair Oaks, California |page=34 }}</ref> In the 1840s [[Kit Carson]] was granted rights to trap beaver on Alameda Creek in the East Bay where they "abounded...from the mouth of its canyon to the broad delta on the bay".<ref>{{cite book |title=The Centennial History of Newark |author =Bruce A. MacGregor |page=13 |publisher=Newark Days Bi-Centennial Committee |year=1976 }}</ref><ref>{{cite book |title=San Francisco Bay Shoreline Guide |author =California Coastal Conservancy |year =1995 |editor=Rasa Gustaitis |publisher=University of California Press |isbn=978-0-520-08878-8 |page=69 |url=https://books.google.com/books?id=sJwh6DQqojUC&pg=PA69 |access-date=2010-07-14 }}</ref> Physical evidence of beaver include [[zooarchaeology|faunal remains]] in the [[Arroyo de la Laguna]] tributary recovered in an archaeological site west of [[Interstate 680 (California)|Interstate 680]].<ref>{{cite journal |title=The historical range of beaver (Castor canadensis) in coastal California: an updated review of the evidence |vauthors=Lanman CW, Lundquist K, Perryman H, Asarian JE, Dolman B, Lanman RB, Pollock MM |journal=California Fish and Game |volume=99 |issue=4 |page=199 |date=Fall 2013 |url=https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=78258. |access-date=January 12, 2019 }}</ref> Beaver may be beneficial to efforts to restore salmonids in Alameda Creek as beaver ponds benefit oversummering salmonid smolts by raising the water table which then recharges streams in the dry summer season and also by providing perennial deep pools when streams are only seasonal.<ref>{{cite journal |title=The Importance of Beaver Ponds to Coho Salmon Production in the Stillaguamish River Basin, Washington, USA |first1=Michael M. |last1=Pollock |author2=G. R. Pess |author3=T. J. Beechie |journal=North American Journal of Fisheries Management |pages=749–760 |year=2004 |volume=24 |issue=3 |doi=10.1577/M03-156.1 |url=http://duff.ess.washington.edu/grg/publications/pdfs/Pollock.pdf |access-date=Feb 28, 2010 }}</ref><ref>{{cite journal|title=Hydrologic and geomorphic effects of beaver dams and their influence on fishes |first1=Michael M. |last1=Pollock |author2=Morgan Heim |author3=Danielle Werner |journal=American Fisheries Society Symposium |volume=37 |year=2003 |pages=213–233 |url=http://www.albergstein.com/cao/Best%20Available%20Science/Fish/Beaver%20dam%20effects%20paper%20final.pdf |access-date=Jan 17, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110707103342/http://www.albergstein.com/cao/Best%20Available%20Science/Fish/Beaver%20dam%20effects%20paper%20final.pdf |archive-date=2011-07-07 }}</ref>
There is historical evidence of [[North American beaver|beaver]] in the Alameda Creek watershed. In 1828 fur trapper Michel La Framboise travelled to "the missions of [[Mission San José (California)|San José]], [[Mission San Francisco Solano|San Francisco Solano]] and [[Mission San Rafael Arcángel|San Rafael Arcángel]]. La Framboise stated that "the Bay of San Francisco abounds in beaver", and that he "made his best hunt in the vicinity of the missions".<ref>{{cite journal |title=Fur Brigade to the Bonaventura: John Work's California Expedition of 1832-33 for the Hudson's Bay Company (Continued) |author1=Alice Bay Maloney |author2=John Work |journal=California Historical Society Quarterly |date=December 1943 |page=343 |jstor=25155808 |volume=22|issue=4 }}</ref> [[Alexander Roderick McLeod]] reported on the progress of the first Hudson's Bay Company fur brigade sent to California in 1829, "Beaver is become an article of traffic on the Coast as at the Mission of St. Joseph alone upwards of Fifteen hundred Beaver Skins were collected from the natives at a trifling value and sold to Ships at 3 Dollars".<ref name=McLeod>{{cite book |title=A. R. McLeod, Esq. to John McLoughlin, Esq.Dated Fort Vancouver 15 Feby. 1830, in The Hudson's Bay Company's First Fur Brigade to the Sacramento Valley: Alexander McLeod's 1829 Hunt |author =Nunis, Doyce |year=1968 |publisher=The [[Sacramento Book Collectors Club]] |location=Fair Oaks, California |page=34 }}</ref> In the 1840s [[Kit Carson]] was granted rights to trap beaver on Alameda Creek in the East Bay where they "abounded...from the mouth of its canyon to the broad delta on the bay".<ref>{{cite book |title=The Centennial History of Newark |author =Bruce A. MacGregor |page=13 |publisher=Newark Days Bi-Centennial Committee |year=1976 }}</ref><ref>{{cite book |title=San Francisco Bay Shoreline Guide |author =California Coastal Conservancy |year =1995 |editor=Rasa Gustaitis |publisher=University of California Press |isbn=978-0-520-08878-8 |page=69 |url=https://books.google.com/books?id=sJwh6DQqojUC&pg=PA69 |access-date=2010-07-14 }}</ref> Physical evidence of beaver include [[zooarchaeology|faunal remains]] in the [[Arroyo de la Laguna]] tributary recovered in an archaeological site west of [[Interstate 680 (California)|Interstate 680]].<ref>{{cite journal |title=The historical range of beaver (Castor canadensis) in coastal California: an updated review of the evidence |vauthors=Lanman CW, Lundquist K, Perryman H, Asarian JE, Dolman B, Lanman RB, Pollock MM |journal=California Fish and Game |volume=99 |issue=4 |page=199 |date=Fall 2013 |url=https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=78258. |access-date=January 12, 2019 }}</ref> Beaver may be beneficial to efforts to restore salmonids in Alameda Creek as beaver ponds benefit oversummering salmonid smolts by raising the water table which then recharges streams in the dry summer season and also by providing perennial deep pools when streams are only seasonal.<ref>{{cite journal |title=The Importance of Beaver Ponds to Coho Salmon Production in the Stillaguamish River Basin, Washington, USA |first1=Michael M. |last1=Pollock |author2=G. R. Pess |author3=T. J. Beechie |journal=North American Journal of Fisheries Management |pages=749–760 |year=2004 |volume=24 |issue=3 |doi=10.1577/M03-156.1 |url=http://duff.ess.washington.edu/grg/publications/pdfs/Pollock.pdf |access-date=Feb 28, 2010 }}</ref><ref>{{cite journal|title=Hydrologic and geomorphic effects of beaver dams and their influence on fishes |first1=Michael M. |last1=Pollock |author2=Morgan Heim |author3=Danielle Werner |journal=American Fisheries Society Symposium |volume=37 |year=2003 |pages=213–233 |url=http://www.albergstein.com/cao/Best%20Available%20Science/Fish/Beaver%20dam%20effects%20paper%20final.pdf |access-date=Jan 17, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20110707103342/http://www.albergstein.com/cao/Best%20Available%20Science/Fish/Beaver%20dam%20effects%20paper%20final.pdf |archive-date=2011-07-07 }}</ref>


==Conservation==
==Conservation==
Line 109: Line 117:


==Alameda Creek Regional Trail==
==Alameda Creek Regional Trail==
The Alameda Creek Regional Trail runs along Alameda Creek for {{convert|12|mi|km|0}}. The trail starts in the Niles neighborhood of Fremont and continues westward to the San Francisco Bay through the cities of [[Union City, California|Union City]] and [[Newark, California|Newark]]. The trail consists of two parallel paths, one on each side of Alameda Creek. The path on the south side of the creek is paved, and can be used by [[pedestrian]]s and [[bicyclist]]s. The path on the north side of the creek is unpaved, and can be used by pedestrians, bicyclists, and [[Equestrianism|equestrian]]s. The trail provides direct access to [[Coyote Hills Regional Park]] and [[Quarry Lakes Regional Recreation Area]].<ref name=Trail/>
The Alameda Creek Regional Trail runs along Alameda Creek for {{convert|12|mi|km|0}}. The trail starts in the Niles neighborhood of Fremont and continues westward to the San Francisco Bay through the cities of [[Union City, California|Union City]] and [[Newark, California|Newark]]. The trail consists of two parallel paths, one on each side of Alameda Creek. The path on the south side of the creek is paved, and can be used by [[pedestrian]]s and [[bicyclist]]s. The path on the north side of the creek is unpaved, and can be used by pedestrians, bicyclists, and [[Equestrianism|equestrian]]s. The trail provides direct access to [[Coyote Hills Regional Park]] and [[Quarry Lakes Regional Recreation Area]].<ref name=Trail/> A connection to the [[Bay Area Ridge Trail]] is planned.<ref>{{cite web | url=https://www.ebparks.org/projects/bay-area-ridge-trail-garin-regional-park-niles-canyon | title=Bay Area Ridge Trail: Garin Regional Park to Niles Canyon &#124; East Bay Parks }}</ref>


==See also==
==See also==

Latest revision as of 16:11, 25 October 2024

Alameda Creek
Spanish: Arroyo de la Alameda
Alameda Creek at Niles, Fremont
Alameda Creek watershed (Interactive map)
EtymologySpanish
Location
CountryUnited States
StateCalifornia
RegionAlameda County, Santa Clara County
CityUnion City, California
Physical characteristics
SourcePackard Ridge in the Diablo Range
 • location12 miles (19 km) east of San Jose
 • coordinates37°23′16″N 121°36′44″W / 37.38778°N 121.61222°W / 37.38778; -121.61222[1]
 • elevation2,950 ft (900 m)
MouthSan Francisco Bay
 • location
Fremont
 • coordinates
37°33′48″N 122°7′51″W / 37.56333°N 122.13083°W / 37.56333; -122.13083[a]
 • elevation
0 ft (0 m)
Length45 mi (72 km)
Basin features
Tributaries 
 • leftCalaveras Creek
 • rightSan Antonio Creek, Arroyo de la Laguna

Alameda Creek (Spanish: Arroyo de la Alameda) is a large perennial stream in the San Francisco Bay Area. The creek runs for 45 miles (72 km) from a lake northeast of Packard Ridge to the eastern shore of San Francisco Bay by way of Niles Canyon and a flood control channel.[1][b] Along its course, Alameda Creek provides wildlife habitat, water supply, a conduit for flood waters, opportunities for recreation, and a host of aesthetic and environmental values. The creek and three major reservoirs in the watershed are used as water supply by the San Francisco Public Utilities Commission, Alameda County Water District and Zone 7 Water Agency. Within the watershed can be found some of the highest peaks (Mount Isabel and Mount Hamilton) and tallest waterfall (Murietta Falls) in the East Bay, over a dozen regional parks, and notable natural landmarks such as the cascades at Little Yosemite and the wildflower-strewn grasslands and oak savannahs of the Sunol Regional Wilderness.

After an absence of half a century, ocean-run steelhead trout are able to return to Alameda Creek to mingle with remnant rainbow trout populations. Completion of a series of dam removal and fish passage projects, along with improved stream flows for cold-water fish and planned habitat restoration, enable steelhead trout and Chinook salmon to access up to 20 miles (32 km) of spawning and rearing habitat in Alameda Creek and its tributaries.[3] The first juvenile trout migrating downstream from the upper watershed through lower Alameda Creek toward San Francisco Bay was detected and documented in April 2023.[4]

History

[edit]

Whereas other Bay Area streams flow down from, or around, mountain ranges, Alameda Creek is unique in that it cuts across the Diablo Range at Niles Canyon. To geologists this is evidence that it is an antecedent stream that existed prior to the rise of the East Bay hills about a million years ago. As the mountain range was lifted by tectonic forces, the creek kept pace by eroding the canyon, which continues to this day. The large alluvial fan under Fremont, Newark, and Union City which juts into San Francisco Bay is further evidence that this creek has been in place for a very long time.[5]

Five Spanish expeditions led by Portolà, Ortega, Fages, Anza and Amador passed over Alameda Creek between 1769 and 1795. El Camino Viejo between Pleasanton and Mission Pass crossed it near Sunol. Mission San José, in Fremont, was dedicated in 1797. The Mission thrived for 49 years until the Mexican government's Secularization Order liquidated mission lands in 1834. Alameda Creek was the boundary of the mission lands and the 17,000-acre (69 km2) Rancho Arroyo de la Alameda granted to Jose de Jesus Vallejo, who built a flour mill near the mouth of Niles Canyon. The mill and the importance of the canyon as a passage through the hills led to growth of Niles (which in 1956 became part of Fremont, California) in the 1850s. A favorable climate, excellent soils, and a fast-growing population helped agriculture to boom. Early roads led to landings where small ships would load grain and other foodstuffs for transport to market.

Alameda Creek is the most important stream in Alameda County, which was named after it. It was the boundary between Contra Costa and Santa Clara counties between 1850, when Contra Costa and Santa Clara counties were formed, to 1853, when Alameda County was carved from the two counties. The portion of Alameda County south of Alameda Creek is the only part of Alameda County that is not derived from Contra Costa County.[6]: 17, 26 

Central Pacific Railroad, and Alameda Creek. Stereo photo taken between 1867 and 1869.

Completion of the Central Pacific Railroad through Niles Canyon in 1869 was essential to completion of First transcontinental railroad that terminated at Alameda Terminal and Oakland Long Wharf that same year. The Western Pacific was also routed through Niles Canyon, connecting Sacramento, California and San Jose, California in 1906.[7]

The creek bed had once been used as a gravel quarry.[8] When the gravel pits were flooded by water purchased by the public for groundwater recharge of the Niles Cone, the gravel harvesters began to daily pump out enough water to meet the needs of 30,000 people down the creek into San Francisco Bay.[9] After the pumping was declared to be an illegal waste the Alameda County Water District acquired the quarry in 1975.[10]

In May 2015, vandals damaged an inflatable dam across the creek in Fremont, releasing 50 million gallons (190 million litres) of drinking water into San Francisco Bay.[11]

Alameda Creek watershed

[edit]
Alameda Creek at the flats of Niles where it has emerged from the Niles Canyon

Alameda Creek is the largest watershed within the southern San Francisco Bay, draining 700 square miles (1,813 square kilometers), or about 20% of the total drainage area for the South Bay.[12] Two-thirds of the watershed is in Alameda County including the reach through the Sunol Valley, the rest is in Santa Clara County. The tributaries of Alameda creek include Arroyo de la Laguna, Arroyo Valle, San Antonio Creek and Calaveras Creek, whose main tributary is Arroyo Hondo. The watershed includes three man-made reservoirs: Lake Del Valle, San Antonio Reservoir and Calaveras Reservoir.[13]

The Alameda Creek Watershed can be divided into six major reaches:

A more comprehensive list inclusive of minor as well as major named tributaries includes (from top of mainstem heading downstream) Valpe Creek (right), Bear Gulch (right), Whitlock Creek (right), Calaveras Creek (left), Leyden Creek (left), Indian Joe Creek (right), Welch Creek (right), Haynes Gulch (left), Pirate Creek (left), San Antonio Creek (right), Arroyo de la Laguna (right), Stonybrook Canyon (right) and Dry Creek (right). Alameda Creek now runs through the man-made Alameda Creek flood channel near the Bay, the latter is parallel to and south of the old Alameda Creek channel. Ward Creek is a tributary to old Alameda Creek.[14]

Ecology, past and present

[edit]
Alameda Creek in Niles Canyon.

Alameda Creek historically supported spawning runs of at least three salmonid species: steelhead (the anadromous form of the coastal rainbow trout Oncorhynchus mykiss irideus),[15] coho salmon (Oncorhynchus kisutch)[16] and chinook salmon (Oncorhynchus tshawytscha).[17]

Steelhead

[edit]

Alameda Creek is considered a potential ‘anchor watershed’ for steelhead, regionally significant for restoration of the threatened trout to the entire Bay Area, although by the late 1950s the California Department of Fish and Game decided the steelhead run was no longer viable due to numerous man-made barriers to fish runs. By the early 1970s the Army Corps of Engineers channeled and rip-rapped the lower 12 miles (19 km) of the creek.[18] The last steelhead and coho salmon runs in the 20th century were seen in the lower creek in 1964, the latter confirmed by photographic records.[16]

Confirmation that adult steelhead captured attempting to migrate into the Alameda Creek watershed, and the rainbow trout sampled in the upper watershed (trapped above complete migration barriers), were native fish associated with the federally threatened steelhead Central California Coast Evolutionarily Significant Unit spurred a major effort to restore this historically important steelhead stream by removing barriers to migration and improving habitat quality.[13] Since steelhead in the Bay Area and California's Central Coast were listed as threatened under the Endangered Species Act in 1997, numerous organizations, including the Alameda Creek Alliance, and governmental agencies have cooperated on restoration projects to allow migratory fish from the Bay to reach spawning habitat in upper Alameda Creek, beginning in 1999.[19] This coalition of agencies and organizations is called the Alameda Creek Fisheries Restoration Workgroup.[20]

In 2009, the Alameda County Water District removed a rubber dam that blocked trout passage in the lower creek, adjacent to Quarry Lakes Regional Park. In June, 2010 environmentalists and water district officials celebrated the removal of a dam on Alameda Creek in Fremont, and the planned installation of fish ladders to allow salmonids to bypass two other dams on the lower creek.[19] At the same time, PG&E worked to modify a cement barrier farther upstream in Sunol to help steelhead swim farther into the watershed, water officials said. Ground was broken on the first ladder the Alameda County Water District was building in April 2018, just west of the Mission Boulevard overcrossing in the Niles district of Fremont, allowing passage around a rubber dam. The second ladder, which was planned to start construction in 2019, is about a mile downstream at the concrete structure, called a weir. The two ladders were funded by nearly $10 million in grants from several agencies, including $5.36 million from the California Wildlife Conservation Board and $3 million from the California Natural Resources Agency.[21] The goal was that when those projects were completed in 2021, steelhead would be able to migrate upstream to spawning habitats in the Sunol Valley for the first time in a half-century.[19]

In April 2023, one juvenile steelhead was found in the creek.[22] The following year, monitoring by the San Francisco Public Utilities Commission recorded 50 tagged steelhead making the migration up Alameda Creek to the San Francisco Bay.[20]

Other fish

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California's archaeological record has contributed to knowledge of the prehistoric distribution of fishes in Alameda Creek and its tributaries including Sacramento perch (Archoplites interruptus), Sacramento suckers (Catostomus occidentalis occidentalis), Tule perch (Hysterocarpus traskii), Hitches (Lavinia exilicauda), Hardheads (Mylopharodon conocephalus), Sacramento blackfish, and Sacramento pikeminnow (Ptychocheilus grandis).[17] Recent physical evidence has proved that the southern limit of coastal Chinook salmon included the southernmost tributaries of South San Francisco Bay.[23] Many of these fishes still occupy the creek, although the number of introduced exotic fishes continues to increase. Exotic fish species such as the largemouth and Smallmouth basses (Micropterus salmoides and Micropterus dolomieui) respectively, were introduced to Alameda Creek (and the Napa River) by Livingston Stone in 1874.[24]

Beaver

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A view of the Mission Blvd bridge at Alameda Creek.

There is historical evidence of beaver in the Alameda Creek watershed. In 1828 fur trapper Michel La Framboise travelled to "the missions of San José, San Francisco Solano and San Rafael Arcángel. La Framboise stated that "the Bay of San Francisco abounds in beaver", and that he "made his best hunt in the vicinity of the missions".[25] Alexander Roderick McLeod reported on the progress of the first Hudson's Bay Company fur brigade sent to California in 1829, "Beaver is become an article of traffic on the Coast as at the Mission of St. Joseph alone upwards of Fifteen hundred Beaver Skins were collected from the natives at a trifling value and sold to Ships at 3 Dollars".[26] In the 1840s Kit Carson was granted rights to trap beaver on Alameda Creek in the East Bay where they "abounded...from the mouth of its canyon to the broad delta on the bay".[27][28] Physical evidence of beaver include faunal remains in the Arroyo de la Laguna tributary recovered in an archaeological site west of Interstate 680.[29] Beaver may be beneficial to efforts to restore salmonids in Alameda Creek as beaver ponds benefit oversummering salmonid smolts by raising the water table which then recharges streams in the dry summer season and also by providing perennial deep pools when streams are only seasonal.[30][31]

Conservation

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In January, 2011, the San Francisco Public Utilities Commission won approvals to construct a replacement dam just downstream from the existing earthen Calaveras Dam, which has been maintained at 40% of capacity because of seismic concerns. However, construction of a fish ladder to provide steelhead (Oncorhynchus mykiss) access to the waters above the dam were deemed not feasible because at 290 feet (88 m), it would be the tallest fish ladder in the country, and would cost $40 million. Steelhead have not had access to spawning streams above Calaveras Dam since it was built in 1925.[32] However, environmentalists won concessions from the SFPUC to assure adequate water releases from the new dam to improve summer flows as well as a smaller fish ladder around a diversion dam blocking access to upper Alameda Creek, which is regarded as prime trout habitat.[33] The San Francisco Public Utilities Commission removed two disused dams in the Niles Canyon reach of Alameda Creek to improve fish passage following assessing impacts in an Environmental Impact Report under CEQA.[34]

Downstream of San Francisco's dams, the Alameda Creek Alliance has helped to initiate the removal of 11 barriers to fish passage since 2001.[32]

Alameda Creek Regional Trail

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The Alameda Creek Regional Trail runs along Alameda Creek for 12 miles (19 km). The trail starts in the Niles neighborhood of Fremont and continues westward to the San Francisco Bay through the cities of Union City and Newark. The trail consists of two parallel paths, one on each side of Alameda Creek. The path on the south side of the creek is paved, and can be used by pedestrians and bicyclists. The path on the north side of the creek is unpaved, and can be used by pedestrians, bicyclists, and equestrians. The trail provides direct access to Coyote Hills Regional Park and Quarry Lakes Regional Recreation Area.[7] A connection to the Bay Area Ridge Trail is planned.[35]

See also

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Notes

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  1. ^ These are the coordinates of the southern mouth, which as of 2023 is the creek's primary outflow. The coordinates listed by USGS are for the northern mouth in Hayward.
  2. ^ One source describes Packard Ridge as being a few miles north of Mount Hamilton and a few miles east of Rattlesnake Butte.[2]

References

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  1. ^ a b U.S. Geological Survey Geographic Names Information System: Alameda Creek
  2. ^ Clark, William Otterbein. "Ground Water in Santa Clara County, California." p. 11. (1924). U.S. Department of the Interior. U.S. Geological Survey. Water Supply Paper 519. Accessed August 1, 2017.
  3. ^ "Alameda Creek Watershed Overview". Alameda Creek Coalition. Retrieved January 31, 2022.
  4. ^ "Steelhead Get Boost in Alameda Creek Thanks to Restoration Efforts". sfpuc.org. April 24, 2023. Retrieved 5 May 2023.
  5. ^ Sloan, Doris (2006). Geology of the San Francisco Bay Region. Berkeley, California: University of California Press. p. 225. ISBN 978-0-520-24126-8.
  6. ^ Thompson & West (1878). Official and historical atlas map of Alameda County, California (Bicentennial 1976 ed.). Fresno, CA: Valley Publishers. ISBN 0913548340.
  7. ^ a b "Alameda Creek Regional Trail" (PDF). East Bay Regional Park District. Archived from the original (PDF) on August 4, 2009. Retrieved June 22, 2010.
  8. ^ Chen, E., McMahon, P., Shorno, A., By, F., Bautista, J., Goza, G., ... & Inn, S. D. (2012). Alameda County Water District, Engineering Department, Groundwater Resources Division.
  9. ^ Victor E. Gleason, Water Projects Go Underground, 5 Ecology L.Q. (1976) discussing Niles Sand & Gravel v. Alameda County Water Dist., 37 Cal. App. 3d 924, 112 Cal. Rptr. 846 (Ct. App. 1974).
  10. ^ "Quarry Lakes Recreation Area". East Bay Regional Park District.
  11. ^ "East Bay Loses 50 Million Gallons of Water After Vandals Destroy Dam". 23 May 2015.
  12. ^ Robert A. Leidy (April 2007). Ecology, Assemblage Structure,Distribution, and Status of Fishes in Streams Tributary to the San Francisco Estuary, California (Report). San Francisco Estuary Institute. Retrieved June 22, 2010.
  13. ^ a b c Andrew J. Gunther; Jeffrey Hagar; Paul Salop (2000-02-07). An Assessment of the Potential for Restoring a Viable Steelhead Trout Population in the Alameda Creek Watershed (PDF) (Report). Alameda Creek Fisheries Restoration Workgroup. Archived from the original (PDF) on July 30, 2009. Retrieved June 22, 2010.
  14. ^ "Ward Creek". Oakland Museum. Retrieved 2013-01-27.
  15. ^ Leidy, R.A.; G.S. Becker; B.N. Harvey (2005). "Historical distribution and current status of steelhead/rainbow trout (Oncorhynchus mykiss) in streams of the San Francisco Estuary, California" (PDF). Center for Ecosystem Management and Restoration. Oakland, CA. Retrieved June 22, 2010.
  16. ^ a b Robert A. Leidy; Gordon Becker; Brett N. Harvey (2005). "Historical Status of Coho Salmon in Streams of the Urbanized San Francisco Estuary, California" (PDF). California Fish and Game. 91 (4): 219–254. Retrieved June 22, 2010.
  17. ^ a b Kenneth W. Gobalet; et al. (2004). "Archaeological Perspectives on Native American Fisheries of California, with Emphasis on Steelhead and Salmon". Transactions of the American Fisheries Society. 133 (4): 801–833. doi:10.1577/T02-084.1. Retrieved June 22, 2010.
  18. ^ Wes Bowers (2010-06-24). "Water district dedicates two projects along Fremont creek". Fremont Bulletin. Retrieved 2010-07-01.
  19. ^ a b c Matthew Artz (2010-06-24). "Steelhead trout, salmon closer to Alameda Creek return". Oakland Tribune. Retrieved 2010-07-01.
  20. ^ a b Stein, Carolyn (June 28, 2024). "'Phenomenal': Species rebounds in Bay Area creek". San Francisco Chronicle. Retrieved June 28, 2024.
  21. ^ Joseph Geha (April 26, 2018). "Work begins on $10 million Alameda Creek fish ladders". East Bay Times. Retrieved January 15, 2019.
  22. ^ Jeanita Lyman (2023-05-04). "Rainbow trout in Alameda Creek signals return of normal migration". Pleasanton Weekly. Retrieved 2023-09-26.
  23. ^ Richard B. Lanman; Linda Hylkema; Cristie M. Boone; Brian Allee; Roger O. Castillo; Stephanie A. Moreno; Mary Faith Flores; Upuli DeSilva; Brittany Bingham; Brian M. Kemp (2021). "Ancient DNA analysis of archaeological specimens extends Chinook salmon's known historic range to San Francisco Bay's tributaries and southernmost watershed". PLOS ONE. 16 (4): e0244470. Bibcode:2021PLoSO..1644470L. doi:10.1371/journal.pone.0244470. PMC 8049268. PMID 33857143.
  24. ^ John E. Skinner (1962). Skinner, John E. (ed.). "The Freshwater Fish and Fisheries of the San Francisco Bay Area". An Historical Review of the Fish and Wildlife Resources of the San Francisco Bay Area. Archived from the original on July 26, 2011. Retrieved June 22, 2010.
  25. ^ Alice Bay Maloney; John Work (December 1943). "Fur Brigade to the Bonaventura: John Work's California Expedition of 1832-33 for the Hudson's Bay Company (Continued)". California Historical Society Quarterly. 22 (4): 343. JSTOR 25155808.
  26. ^ Nunis, Doyce (1968). A. R. McLeod, Esq. to John McLoughlin, Esq.Dated Fort Vancouver 15 Feby. 1830, in The Hudson's Bay Company's First Fur Brigade to the Sacramento Valley: Alexander McLeod's 1829 Hunt. Fair Oaks, California: The Sacramento Book Collectors Club. p. 34.
  27. ^ Bruce A. MacGregor (1976). The Centennial History of Newark. Newark Days Bi-Centennial Committee. p. 13.
  28. ^ California Coastal Conservancy (1995). Rasa Gustaitis (ed.). San Francisco Bay Shoreline Guide. University of California Press. p. 69. ISBN 978-0-520-08878-8. Retrieved 2010-07-14.
  29. ^ Lanman CW, Lundquist K, Perryman H, Asarian JE, Dolman B, Lanman RB, Pollock MM (Fall 2013). "The historical range of beaver (Castor canadensis) in coastal California: an updated review of the evidence". California Fish and Game. 99 (4): 199. Retrieved January 12, 2019.
  30. ^ Pollock, Michael M.; G. R. Pess; T. J. Beechie (2004). "The Importance of Beaver Ponds to Coho Salmon Production in the Stillaguamish River Basin, Washington, USA" (PDF). North American Journal of Fisheries Management. 24 (3): 749–760. doi:10.1577/M03-156.1. Retrieved Feb 28, 2010.
  31. ^ Pollock, Michael M.; Morgan Heim; Danielle Werner (2003). "Hydrologic and geomorphic effects of beaver dams and their influence on fishes" (PDF). American Fisheries Society Symposium. 37: 213–233. Archived from the original (PDF) on 2011-07-07. Retrieved Jan 17, 2010.
  32. ^ a b "Calaveras Dam Project Revised, Future Operations Could Help Restore Alameda Creek" (PDF). Alameda Creek Alliance. 2011-01-25. Archived from the original (PDF) on 2011-07-22. Retrieved 2011-02-02.
  33. ^ Kelly Zito (2011-01-28). "Calaveras Dam rebuilding projected approved". San Francisco Chronicle. Retrieved 2011-02-02.
  34. ^ SAN FRANCISCO PUBLIC UTILITIES COMMISSION SUNOL/NILES DAM REMOVAL PROJECT, State Clearinghouse No. 2004072049, February 24, 2006. EIR Certification Date: March 16, 2006. http://sfwater.org/Files/Reports/1_53_SunolNilesDamRmvl_RTC201591a.pdf Archived 2011-06-29 at the Wayback Machine
  35. ^ "Bay Area Ridge Trail: Garin Regional Park to Niles Canyon | East Bay Parks".
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