Adobe Creek
From Wikipedia, the free encyclopedia
| Adobe Creek | |
| Casa Grande Creek[1] | |
| stream | |
 Adobe Creek at the 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 | [2] |
| Mouth | Petaluma River |
| - location | east of Petaluma, California |
| - elevation | 3 ft (1 m) [2] |
| - coordinates | [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 and discharges into the Petaluma River. It has also been called Casa Grande Creek. [1]
Contents |
[edit] 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.
[edit] Watershed
Adobe Creek drains an area of about 10 square miles (26 km²).[1] Its headwaters lie in Lafferty Ranch, a 270 acres (109 ha) 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.[3] Petaluma Reservoir (which formerly provided water for the city of Petaluma) is located in the Adobe Creek watershed.
[edit] Habitat and pollution
In the 1960s, the creek supported steelhead trout, caddis flies, stone flies, helgramites, frogs, and algae.[1]
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.[4]
As of 2000, Adobe Creek still supported steelhead trout.[5]
[edit] Bridges
At least six bridges span Adobe Creek:[6]
- 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 reconstruced 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.
[edit] References
- ^ a b c d e 1968 Stream Survey. Retrieved on 2008-03-16.
- ^ a b c USGS GNIS: Adobe Creek
- ^ Publicly Owned and Protected Lands on Sonoma Mountain. Retrieved on 2008-02-15.
- ^ NOAA Photo Library. Retrieved on 2008-02-15.
- ^ Cox, Bill (2000). Major Streams in Sonoma County. Retrieved on 2008-02-15.
- ^ National Bridge Inventory Database.
