Stevens Creek (California)

Last updated
Stevens Creek
Cupertino Creek
Steelhead trout digging redd March 2013 Stevens Creek.jpg
Steelhead trout and spawning redd on Stevens Creek
Native nameArroyo San José de Cupertino [1]
Location
Country United States
State California
Region Santa Clara County
City Mountain View, California
Physical characteristics
Source Black Mountain in the Santa Cruz Mountains
  location Monte Bello Open Space Preserve
  coordinates 37°18′40″N122°11′14″W / 37.31111°N 122.18722°W / 37.31111; -122.18722 [2]
Mouth Southwest San Francisco Bay
  location
Whisman Slough, Mountain View, California
  coordinates
37°26′45″N122°03′49″W / 37.44583°N 122.06361°W / 37.44583; -122.06361 Coordinates: 37°26′45″N122°03′49″W / 37.44583°N 122.06361°W / 37.44583; -122.06361 [2]
  elevation
3 ft (0.91 m) [2]
Basin features
Tributaries 
  leftIndian Creek (San Leandro River), Bay Creek (San Leandro River), Gold Mine Creek, Swiss Creek, Montebello Creek, Heney Creek
Portion of San Francisco & San Jose Railroad (Allardt) map showing historic connection of Permanente Creek (Arroyo Permanente) to Stevens Creek (then known as Cupertino Creek) circa 1862. These creeks ended in marshes that were hydrologically connected to the Bay at times of high winter flows. Hale Creek, unnamed and next stream to the right, does not appear connected to Permanente Creek in 1862 as it is today. Furthest to the right, the Arroyo San Antonio (Adobe Creek) is shown. 1862 Allardt Map Permanente Creek.JPG
Portion of San Francisco & San Jose Railroad (Allardt) map showing historic connection of Permanente Creek (Arroyo Permanente) to Stevens Creek (then known as Cupertino Creek) circa 1862. These creeks ended in marshes that were hydrologically connected to the Bay at times of high winter flows. Hale Creek, unnamed and next stream to the right, does not appear connected to Permanente Creek in 1862 as it is today. Furthest to the right, the Arroyo San Antonio (Adobe Creek) is shown.

Stevens Creek is a creek in Santa Clara County, California. The creek originates in the Santa Cruz Mountains on the western flank of Black Mountain in the Monte Bello Open Space Preserve near the terminus of Page Mill Road at Skyline Boulevard. It flows southeasterly through the Stevens Creek County Park before turning northeast into Stevens Creek Reservoir. It then continues north for 12.5 miles through Cupertino, Los Altos, Sunnyvale and Mountain View before emptying into the San Francisco Bay at the Whisman Slough, near Google's main campus.

Contents

History

The creek was originally named Arroyo San José de Cupertino (Spanish for Saint Joseph of Cupertino Creek) by Spanish explorer Juan Bautista de Anza, who camped along the creek on his expedition from Monterey to San Francisco. De Anza completed the first overland route to San Francisco Bay when he and Father Pedro Font sighted the bay from a prominent knoll near the entry of Rancho San Antonio County Park. In de Anza's diary on March 25, 1776, he states that he "arrived at the "Arroyo San José de Cupertino", which is useful only for travelers. Here we halted for the night, having come eight leagues in seven and a half hours. From this place we have seen at our right the estuary which runs from the port of San Francisco." [3] The Diocese of San Jose recently dedicated de Anza's Knoll as permanent public open space.

The Saint Joseph of Cupertino place name is preserved today in the city of Cupertino to the east and in the Saint Joseph of Cupertino Parish Catholic church in the city. The Arroyo San José de Cupertino became Cupertino Creek sometime before 1866, [1] but was later re-named for Elijah Stephens (how his name was misspelled is unknown), a South Carolina-born blacksmith and trapper who settled on Cupertino Creek in 1848. Stephens renamed his 160-acre (0.65 km2) property at the base of Black Mountain "Blackberry Farm". Stephens is notable for being the captain of the Stephens-Townsend-Murphy Party, the first wagon train to cross the Sierra Nevada (two years before the ill-fated Donner Party). [4] [5]

Watershed

Stevens Creek consists of approximately 20 miles (32 km) of channel, and enters the San Francisco Estuary near Long Point, north of Moffett Field Naval Air Station, at Whisman Slough between Mountain View's Shoreline Park and Stevens Creek Shoreline Nature Study Area. It drains a watershed of about 29 square miles (75 km2). [6]

There is one major impoundment (dam), Stevens Creek Reservoir at 531 feet (162 m) of elevation. The reservoir was constructed in 1935 to provide storage capacity of winter runoff that could be used to recharge the Santa Clara valley aquifer. The reservoir is managed by the Santa Clara Valley Water District (SCVWD) and has a current capacity of 3,465 acre-feet (4,274,000 m3) of water. As currently managed by the SCVWD, flows are released during summer months which result in maintaining a wet channel for approximately 5.7 miles (9.2 km) downstream of the Reservoir (to Fremont Avenue) in order to preserve steelhead.

Tributaries above the Stevens Creek Reservoir include Indian Creek, Bay Creek, Gold Mine Creek, Swiss Creek and Montebello Creek. One tributary, Heney Creek, joins the mainstem 3.7 miles (6.0 km) below the Reservoir. Additionally, a diversion channel from Permanente Creek (constructed in 1959) sends winter storm flows into Stevens Creek approximately 6.3 miles (10.1 km) below the reservoir. [6]

Stevens Creek Trail

A view along the Stevens Creek Trail near downtown Mountain View Stevens Creek Trail in Mountain View.jpg
A view along the Stevens Creek Trail near downtown Mountain View

The Stevens Creek Trail is a 5-mile (8 km) long bicycle and pedestrian path that runs south continuously from Shoreline Park to Heatherstone Way in Mountain View. [7] Cupertino has completed an approximately 1-mile (1.6 km) section of trail that runs north along the creek from McClellan Road to Stevens Creek Blvd., passing the 4-H farm and community gardens in McClellan Ranch Park nature preserve, and the Blackberry Farm Park. [8] [9] The trail is entirely separated from vehicular traffic, using numerous overcrossings and underpasses.

The four cities of Sunnyvale, Cupertino, Los Altos, and Mountain View cooperated on potential trail alignments with the goal of a completed trail from the Bay to the Santa Cruz Mountains; they produced a recommendation, which was approved by all four cities, and then disbanded their joint city working team. [10]

Habitat and conservation

Steelhead trout

Two pairs of steelhead trout spawning in lower reaches of Stevens Creek may have had difficulty ascending to former spawning grounds due to fish passage barriers Two pairs adult Steelhead trout and 2 redds March 2013 Stevens Creek.jpg
Two pairs of steelhead trout spawning in lower reaches of Stevens Creek may have had difficulty ascending to former spawning grounds due to fish passage barriers
Looking west, from east side of Stevens Creek, at terminus of Permanente Creek Diversion Channel as it exits beneath Highway 85. Here Permanente Creek drops about ten vertical feet over cemented boulders, an impassable barrier to in-migrating steelhead trout, 2013. Permanente Creek Diversion Channel fish barrier at confluence with Stevens Creek 2013.JPG
Looking west, from east side of Stevens Creek, at terminus of Permanente Creek Diversion Channel as it exits beneath Highway 85. Here Permanente Creek drops about ten vertical feet over cemented boulders, an impassable barrier to in-migrating steelhead trout, 2013.
Stevens Creek in Mountain View, just above where it crosses under California Route 85, showing fish-passage baffles Stevens Creek above CA 85 undercrossing.jpg
Stevens Creek in Mountain View, just above where it crosses under California Route 85, showing fish-passage baffles

Stevens Creek was one of the prime steelhead (coastal rainbow trout) (Oncorhynchus mykiss irideus) habitats within the county. The Sportsman Gazetteer in 1877 touted Stevens Creek as a trout fishing destination. [11] Six physical specimens were collected in 1893 by Stanford Biology Professor W. W. Thoburn and are in the California Academy of Sciences collection. [12] In 1898 John Otterbein Snyder collected steelhead trout specimens in Stevens Creek. [13] Leidy reviewed numerous historical observer and sampling records of steelhead trout in Stevens Creek throughout the twentieth century and noted that hatchery stock planted in the creek did not seem to survive like the native, wild trout did. [14] In a genetic study of fish from Santa Clara Valley streams, Stevens Creek and other trout had coastal steelhead ancestry and no substantial introgression of hatchery trout. The Stevens Creek fish were closely related to the steelhead trout in nearby basins. [15]

However, there are significant barriers for anadromous steelhead to run up Stevens Creek to spawn. In a 1994 study, the Santa Clara Valley Water District (SCVWD) found fish ladders at the Central Expressway and U.S. Route 101 often had insufficient flow and/or were clogged with debris and sediment. In addition, the drop structure at L’Avenida Avenue was impassable in all five years of the study. [16] In August, 2003 the Stevens & Permanente Creeks Watershed Council was officially formed to support stewardship of the watersheds. [17] The SCVWD's Fish and Aquatic Habitat Collaborative Effort (FAHCE), has recommended removal of the Denil-type fish ladders at Fremont Avenue, Evelyn Avenue, and Moffett Boulevard which tend to clog with debris and are now classified as partial barriers by the California Department of Fish and Game (CDFG). Adjacent to the fish ladder at Moffett Boulevard is a concrete drop structure built in the 1980s which is another obstacle to salmonid passage. The existing concrete-lined channel extending further downstream to Highway 101 (a distance of 450 feet (140 m) is flat and low flows cross it as a thin sheet of water over the concrete bottom. At least 6 inches (150 mm) depth of flow is required for adequate fish passage. [18] Although steelhead continue to spawn in lower Stevens Creek, it is doubtful whether young trout can oversummer for one to two years in its drier, hotter lower reaches. [19] In a 2004 report of factors limiting steelhead trout survival, the key recommendation was to improve access for spawning steelhead in the lower reaches of the creek (which gets very warm or even dry in summer) to the upper reaches of Stevens Creek which have perennial flows of colder water. [19] In addition, if the Permanente Creek Diversion Channel could be modified to accommodate steelhead trout in-migration, then several miles of upper Permanente Creek, which currently holds a population of stream resident coastal rainbow trout, would be available for spawning. A NOAA/National Marine Fisheries Service report on the Stevens Creek steelhead trout population in April 2013 found a high density of spawning Redds below the Evelyn Avenue fish ladder and grade control structure, but that this barrier was forcing most of the steelhead to spawn in the undesirable lower reaches of the stream, and that it has been a significant barrier to upstream spawning runs for at least the past four years. [20] Under the water district's Fish and Aquatic Habitat Collaborative Effort (FAHCE), Stevens Creek has been identified as one of the prime steelhead habitats within Santa Clara County and plans are underway to remove three barriers to fish passage in the lower creek: at Moffett Boulevard, Evelyn Avenue and Fremont Avenue. [21]

Red-bellied newt

The red-bellied newt (Taricha rivularis) was thought to occur only in coast redwood (Sequoia sempervirens) forests 130 kilometres (81 mi) north of Stevens Creek in Sonoma County, California, however a disjunct population was discovered in the upper watershed of Stevens Creek that is genetically identical to the Sonoma County population. Whether the Stevens Creek newts were introduced or are a relict population is unclear. [22] [23]

Western burrowing owl

Western burrowing owls Burrowing Owl Family in Antioch.jpg
Western burrowing owls

The western burrowing owl (Athene cunicularia) nests at Shoreline Park near the mouth of Stevens Creek. In 2008, Mountain View evicted a pair of burrowing owls so that it could sell a parcel of land to Google to build a hotel at Shoreline Boulevard and Charleston Road. [24] Eviction of the owls is controversial because the birds regularly reuse burrows for years, and there is no requirement that suitable new habitat be found for the owls. Despite being listed in 1979 as a Species of Special Concern (a pre-listing category under the Endangered Species Act) by the California Department of Fish and Game, California's population declined 60% from the 1980s to the early 1990s, and continues to decline at roughly 8% per year. [25] In 1994, the U.S. Fish and Wildlife Service nominated the Western Burrowing Owl as a Federal Category 2 candidate for listing as endangered or threatened, but loss of habitat continues due to development of the flat, grassy lands used by the owl. According to The Institute for Bird Populations at Point Reyes, there has been a 50 percent decline in burrowing owl populations in the Bay Area in the last 10 to 15 years. Their status protects them from disturbance during nesting season or killing at any time, but does not guarantee them a permanent home, as outside of breeding season, owls can be evicted from their homes. [26] A 1992–93 survey reported no breeding burrowing owls in Napa, Marin, and San Francisco counties, and only a few in San Mateo and Sonoma. The Santa Clara County population is declining and restricted to a few breeding locations, leaving only Alameda, Contra Costa, and Solano counties as the remnant breeding range. [27]

Stevens Creek under Dana Street.jpg
Stevens Creek from Stevens Creek Trail, just upstream of where they run under Mountain View's Dana Street overpass

See also

Related Research Articles

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Arroyo Hondo (Santa Clara County)

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Coyote Creek (Santa Clara County)

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Alameda Creek

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Los Gatos Creek (Santa Clara County)

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San Francisquito Creek

San Francisquito Creek is a creek that flows into southwest San Francisco Bay in California, United States. Historically it was called the Arroyo de San Francisco by Juan Bautista de Anza in 1776. San Francisquito Creek courses through the towns of Portola Valley and Woodside, as well as the cities of Menlo Park, Palo Alto, and East Palo Alto. The creek and its Los Trancos Creek tributary define the boundary between San Mateo and Santa Clara counties.

Smith Creek (Arroyo Hondo tributary)

Smith Creek is a 14-mile-long (23 km) perennial stream which flows along the western flank of Mount Hamilton in Santa Clara County. The creek begins near Bollinger Ridge, about 7.7 km SxSW of Mount Hamilton.

Wildcat Creek (California)

Wildcat Creek is a 13.4-mile-long (21.6 km) creek which flows through Wildcat Canyon situated between the Berkeley Hills and the San Pablo Ridge, emptying into San Pablo Bay in Contra Costa County, northern California.

Upper Penitencia Creek is actually one of two creeks by the name Penitencia Creek in the northeastern Santa Clara Valley of Santa Clara County, California. They are both tributaries of Coyote Creek. The upper creek was diverted southwestward, connecting it directly to Coyote Creek ca. 1850 by a farmer to irrigate his fields, permanently splitting Upper Penitencia Creek from Lower Penitencia Creek. Upper Penitencia Creek drains the western slopes of Mount Hamilton of the Diablo Range, and passes through Alum Rock Park, before ending at its confluence with Coyote Creek at Berryessa Road. In December 2018, the San Francisco Estuary Institute published a report commissioned by the Santa Clara Valley Water District to establish a vision for Upper Penitencia Creek's lower four miles focusing on ways "to expand flow conveyance and flood water storage from the Coyote Creek confluence upstream to the Dorel Drive bridge in a manner that works with the existing landscape features and supports habitats for native species".

Uvas Creek

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Adobe Creek (Santa Clara County) Stream in Santa Clara County, California

Adobe Creek, historically San Antonio Creek, is a 14.2-mile-long (22.9 km) northward-flowing stream originating on Black Mountain in the Santa Cruz Mountains. It courses through the cities of Los Altos Hills, Los Altos, and Palo Alto on its way to the Palo Alto Flood Basin and thence to southwestern San Francisco Bay in Santa Clara County, California, United States. Historically, Adobe Creek was a perennial stream and hosted runs of steelhead trout entering from the Bay, but these salmonids are now blocked by numerous flood control structures, including a tidal gate at the creek's mouth and a long concretized rectangular channel culminating in an impassable drop structure at El Camino Real. The co-founders of Adobe Systems both lived on Adobe Creek.

Permanente Creek

Permanente Creek is a 13.3-mile-long (21.4 km) stream originating on Black Mountain in Santa Clara County, California, United States. It is the namesake for the Kaiser Permanente health maintenance organization. Named by early Spanish explorers as Arroyo Permanente or Rio Permanente because of its perennial flow, the creek descends the east flank of Black Mountain then courses north through Los Altos and Mountain View culminating in southwest San Francisco Bay historically at the Mountain View Slough but now partly diverted via the Permanente Creek Diversion Channel to Stevens Creek and the Whisman Slough in San Francisco Bay.

Hale Creek

Hale Creek is a short stream originating in the foothills of Los Altos Hills, California in Santa Clara County, California, United States. Its source is in the Rancho San Antonio Open Space Preserve, west of Neary Quarry. The creek flows northeasterly 4.6 miles (7.4 km) through the cities of Los Altos Hills, Los Altos, and Mountain View before joining Permanente Creek.

Marsh Creek (California)

Marsh Creek is a stream in east Contra Costa County, California in Northern California which rises on the eastern side of Mount Diablo and flows 30 miles (48 km) to the Sacramento–San Joaquin River Delta at Oakley, California, near Big Break Regional Shoreline. The creek flows through Marsh Creek State Park (California), where water is impounded to form Marsh Creek Reservoir, then through the city of Brentwood, California.

Corte Madera Creek (San Mateo County)

Corte Madera Creek is a 7.3-mile-long (11.7 km) creek that flows north-northwest to Searsville Dam and then joins with Bear Creek to form San Francisquito Creek in California.

Calabazas Creek (Santa Clara County)

Calabazas Creek is a 13.3-mile-long (21.4 km) northeast by northward-flowing stream originating on Table Mountain in Saratoga, California in Santa Clara County, California, United States. It courses through the cities of Saratoga, San Jose, Cupertino, Santa Clara and Sunnyvale, culminating in the Guadalupe Slough in south San Francisco Bay.

San Tomas Aquino Creek

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Alamitos Creek

Alamitos Creek or Los Alamitos Creek is a 7.7-mile-long (12.4 km) creek in San Jose, California, which becomes the Guadalupe River when it exits Lake Almaden and joins Guadalupe Creek. Los Alamitos Creek is located in Almaden Valley and originates from the Los Capitancillos Ridge in the Santa Cruz Mountains, near New Almaden. This creek flows through the Valley's Guadalupe Watershed, which is owned by the Santa Clara Valley Water District. The creek flows in a generally northwesterly direction after rounding the Los Capitancillos Ridge and the town of New Almaden, in the southwest corner, before ambling along the Santa Teresa Hills on northeast side of the Almaden Valley. Its environment has some relatively undisturbed areas and considerable lengths of suburban residential character. Originally called Arroyo de los Alamitos, the creek's name is derived from "little poplar", "alamo" being the Spanish word for "poplar" or "cottonwood".

San Felipe Creek is a 14 miles (23 km) stream that originates in the western Diablo Range in Santa Clara County, California. It flows south by southeast through two historic ranchos, Rancho Los Huecos and Rancho Cañada de San Felipe y Las Animas before it joins Las Animas Creek just above Anderson Reservoir. One of the nine major tributaries of Coyote Creek, the creek’s waters pass through the Santa Clara Valley and San Jose on the way to San Francisco Bay.

North Fork Pacheco Creek

North Fork Pacheco Creek is a 19 miles (31 km) tributary stream of Pacheco Creek, in Santa Clara County, California. Originally it was considered the upper reach of Pacheco Creek. Its source is at an elevation of 2,360 feet (720 m) at 37°11′17″N121°25′42″W on a mountain side in Henry W. Coe State Park and is the headwaters of the Pajaro River watershed.

References

  1. 1 2 Durham, David L. (1998). Durham's Place Names of California's San Francisco Bay Area: Includes Marin, San Francisco, San Mateo, Contra Costa, Alameda, Solano & Santa Clara counties. Word Dancer Press, Sanger, California. p. 707. ISBN   1-884995-14-4 . Retrieved Jan 1, 2010.
  2. 1 2 3 U.S. Geological Survey Geographic Names Information System: Stevens Creek
  3. de Anza; Juan Bautista (1776). Diary of Juan Bautista de Anza October 23, 1775 - June 1, 1776. University of Oregon Web de Anza pages. Archived from the original on November 25, 2009. Retrieved 2009-09-08.
  4. "Stevens Creek: Historic, Navigable, Misspelled". Archived from the original on 2012-09-19. Retrieved 2009-09-21.
  5. History of the Rengstorff House from "Archived copy". Archived from the original on 2012-09-19. Retrieved 2009-09-21.CS1 maint: archived copy as title (link)
  6. 1 2 "Stevens Watershed, Santa Clara Valley Urban Runoff Pollution Prevention Program". Santa Clara Valley Urban Runoff Pollution Prevention Program. Retrieved Dec 1, 2010.
  7. Teater & etc. (2004). "Map of Shoreline Park and Stevens Creek, Hetch-Hetchy Trails". City of Mountain View.
  8. "Stevens Creek Corridor Park & Restoration Phase 2 Dedication Celebration". City of Cupertino. 2014-06-27.
  9. Stevens Creek Trail Map, City of Cupertino
  10. "Stevens Creek Trail Status". Cupertino, CA: Friends of the Stevens Creek Trail. 2017-10-28. Retrieved 2020-04-24.
  11. Charles Hallock (1877). The sportsman's gazetteer and general guide. "Forest and stream" publishing Company. p.  15 . Retrieved 2015-08-25. adobe.
  12. "Oncorhynchus mykiss irideus, SU 4758". California Academy of Sciences. Archived from the original on 2015-12-27. Retrieved 2015-08-25.
  13. John Otterbein Snyder, United States Bureau of Fisheries (1905). Notes on the fishes of the streams flowing into San Francisco Bay, California in Report of the Commissioner of Fisheries to the Secretary of Commerce and Labor for the fiscal year ending June 30, 1904. 30. General Printing Office. p. 337. Retrieved 2021-11-08.
  14. Robert A. Leidy; Gordon Becker; Brett N. Harvey (2005). Historical Distribution and Current Status of Steelhead/Rainbow Trout (Oncorhynchus mykiss) in Streams of the San Francisco Estuary, California (PDF) (Report). Center for Ecosystem Management and Restoration. p. 123. Retrieved 2015-08-25.
  15. John Carlos Garza, Devon Pearse (March 2008). Population genetics of Oncorhynchus mykiss in the Santa Clara Valley Region (PDF) (Report). Santa Clara Valley Water District. Retrieved 2021-11-08.CS1 maint: uses authors parameter (link)
  16. 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 2009-10-18.CS1 maint: multiple names: authors list (link)
  17. "Stevens Creek and Permanente Creeks Watershed Council: About US" . Retrieved 2009-11-09.
  18. Saeid Hosseini; Ted Ibarra; Jae Abel; Bobby Tan (June 2009). FAHCE Stevens Creek Fish Passage Enhancement Project No. 00294001 Problem Definition/Refined Objectives Report (Report). Retrieved 2021-11-08.
  19. 1 2 Stillwater Sciences (2004-09-10). Stevens Creek Limiting Factors Analysis (PDF) (Report). SCVURPPP. p. 33. Retrieved 2021-11-08.
  20. Darren Howe, Gary Stern (2013-04-19). Stevens Creek Survey and Observations (Report). NOAA/NMFS.CS1 maint: uses authors parameter (link)
  21. "Stevens Creek Fish Passage Modifications". Santa Clara Valley Water District. Retrieved 2021-11-08.
  22. Sean B. Reilly, Daniel M. Portik, Michelle S. Koo, and David B. Wake (2014). "Discovery of a New, Disjunct Population of a Narrowly Distributed Salamander (Taricha rivularis) in California Presents Conservation Challenges". Journal of Herpetology. 48 (3): 371–379. Retrieved January 31, 2021.CS1 maint: uses authors parameter (link)
  23. Tony Iwane (January 3, 2021). "The Mysterious Red Belly. A visit with Stevens Creek's resident enigmas". Bay Nature. Retrieved January 31, 2021.
  24. DeBolt, Daniel (January 10, 2008). "Burrowing Owls vs. Google:Pair of birds found on Google's hotel site will cost city $150,000". Mountain View Voice.
  25. Rendon, JIm (Nov–Dec 1999). "Owl Be Damned:Developers plow into the homes of the burrowing owl". Metro, Silicon Valley's Weekly Newspaper.
  26. Donna Whitmarsh. "Antioch Developer Evicts Burrowing Owls". Bay Nature. Archived from the original on October 4, 2011. Retrieved Jan 1, 2010.
  27. Joe Eaton (Jan 14, 2010). "Wild Neighbors: Antioch Owls Face Evicition". Berkeley Daily Planet. Retrieved Jan 14, 2010.