World Library  
Flag as Inappropriate
Email this Article

Adobe Creek (near Petaluma, California)

Article Id: WHEBN0014932393
Reproduction Date:

Title: Adobe Creek (near Petaluma, California)  
Author: World Heritage Encyclopedia
Language: English
Subject: Petaluma River, Sonoma Mountains
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Adobe Creek (near Petaluma, California)

This article is about Adobe Creek (near Petaluma, California). For Adobe Creek (near Los Altos, California), see Adobe Creek (near Los Altos, California).
Adobe Creek
Casa Grande Creek[1]
stream
Petaluma Adobe State Historic Park.
Country United States
State California
Region Sonoma County
City Petaluma, California
Landmark Rancho Petaluma Adobe
Source Sonoma Mountain
 - location 7 mi (11 km) northeast of Petaluma, California
 - elevation 2,040 ft (622 m)
 - coordinates 19|5|N|122|34|31|W|type:river_region:US-CA name=

}} [2]

Mouth Petaluma River
 - location 2.5 miles east-southeast of Petaluma, California
 - elevation 3 ft (1 m) [2]
 - coordinates 13|26|N|122|36|19|W|type:river_region:US-CA name=

}} [2]

Basin 10 sq mi (26 km2) [1]

Adobe Creek is a southward-flowing stream in Sonoma County, California, United States which flows past the historic Rancho Petaluma Adobe on its 7.5-mile (12.1 km) course to its confluence with the Petaluma River.[3] It has also been called Casa Grande Creek.[1]

Course

Adobe Creek rises on the west flank of Sonoma Mountain. It descends initially to the south, passing west of Petaluma Reservoir and flowing under Manor Lane. Just east of Petaluma Adobe State Historic Park, it bends toward the southwest and crosses Adobe Road. From there, the creek follows Casa Grande Road, crossing under the road twice as it winds in and out of Adobe Creek Golf Club, crosses Ely Boulevard, and runs along the eastern edge of Del Oro Park. It flows under Lakeville Highway (State Route 116) at milepost 36.19, crosses South McDowell Boulevard, and enters the Petaluma River about 1 mile (1.6 km) southeast of the U.S. 101 bridge.

Watershed

Adobe Creek drains an area of about 10 square miles (26 km2).[1] Its headwaters lie in Lafferty Ranch, a 270-acre (1.1 km2) parcel of land owned by the City of Petaluma since 1995. Lafferty Ranch has been proposed for a wilderness park, but is not accessible to the public.[4] Petaluma Reservoir (which formerly provided water for the city of Petaluma) is located in the Adobe Creek watershed.

Ecology

In 1983 a high school student group organized by school instructor Tom Furrer founded United Anglers of Casa Grande High School to restore Adobe Creek stream habitat and to see if they could restore Steelhead trout (Oncorhyncus mykiss) populations. At that time Adobe Creek was considered a "dead stream" and was a dry, littered riverbed most of the year, although tiny steelhead trout could be found in occasional shallow, drying pools.[5] The students hauled truckloads of trash out of the creek and planted thousands of Coast Douglas-fir (Pseudotsuga menziesii) and Willow (Salix) trees to shade and cool the waters. They successfully lobbied Petaluma City Hall officials to re-open Lawler Dam, which was hardly used and kept water from the creek much of the year. In October 1992 Adobe Creek was restored as a free-running stream for the first time in eight decades. The next year, hundreds of steelhead fingerlings were counted in Adobe Creek and the native steelhead population has recovered without restocking.[5][6] Genetic analysis has proved that the Steelhead trout (Oncorhyncus mykiss) that spawn and rear in the Petaluma River watershed are wild, not hatchery, stock.[7] In 1990, five Chinook salmon (Oncorhynchus tshawytscha) returned to spawn in Adobe Creek, the first time documented in a century.[8] In 1993 the organization constructed a salmon hatchery at the high school. In 1996, the creek was the subject of a habitat restoration project which built a step pool near Adobe Road for the benefit of migratory fish.[9] In 2001, students studied the creekbed during low summer flows, and made the scientific discovery that Steelhead fry spend the summer in the creek substrate, re-emerging when flows become reestablished.[8] In 2002, a record 74 Chinook salmon return to spawn along with native Steelhead trout who continue to use the creek annually.[8][10]

Bridges

At least six bridges span Adobe Creek:[11]

  • Manor Lane crosses 0.77 miles (1.2 km) north of Adobe Road on a 32-foot (10 m) concrete slab built in 1960.
  • Casa Grande Avenue crosses the creek twice:
    • first (0.25 miles (0.4 km) south of Adobe Road) on a 30-foot (9 m) concrete culvert built in 1970
    • and again (0.4 miles (0.6 km) north of Ely Road) on a 45-foot (14 m) concrete culvert built in 1970 and reconstructed in 1991.
  • Ely Boulevard crosses 0.1 miles (0.2 km) southeast of Casa Grande Avenue on a 54-foot (16 m) concrete continuous slab built in 1984.
  • Sartori Drive crosses 0.2 miles (0.3 km) southeast of Casa Grande Avenue on a 54-foot (16 m) concrete continuous slab built in 1976.
  • State Route 116 crosses at milepost 36.19 on a 33-foot (10 m) concrete continuous slab built in 1954 and reconstructed in 1997.

See also

References

External links

  • United Anglers of Casa Grande High School
  • Lafferty Ranch photo gallery
  • Southern Sonoma County Resource Conservation District

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.