San Timoteo Creek
|San Timoteo Creek|
|San Timoteo Wash|
|Counties||San Bernardino, Riverside|
|- left||Coopers Creek|
|- right||Noble Creek, Little San Gorgonio Creek, Yucaipa Creek|
|Source||Confluence of Little San Antonio Creek and Noble Creek|
|- location||San Bernardino Mountains|
|- elevation||2,430 ft (741 m)|
|Mouth||Santa Ana River|
|- location||Near Loma Linda|
|- elevation||1,004 ft (306 m)|
|- coordinates||Coordinates: |
|Basin||125 sq mi (324 km2) |
|Discharge||for near Loma Linda|
|- average||4.29 cu ft/s (0 m3/s) |
|- max||15,000 cu ft/s (425 m3/s)|
|- min||0 cu ft/s (0 m3/s)|
Map of the Santa Ana River drainage basin
San Timoteo Creek (also called San Timoteo Wash, colloquially known as San Tim) is a stream in Riverside and San Bernardino counties in southern California, United States. A tributary of the Santa Ana River, it flows through San Timoteo Canyon. San Timoteo Creek has a drainage basin of about 125 square miles (320 km2). The creek receives most of its water from headwater tributaries flowing from the San Bernardino Mountains near Cherry Valley, as well as Yucaipa Creek, which flows from Live Oak Canyon.
San Timoteo Creek is formed by the confluence of Little San Antonio Creek and Noble Creek west of Beaumont. Coopers Creek joins from the southeast just before the San Timoteo enters the San Timoteo Canyon. The San Timoteo flows northwest through San Timoteo Canyon, north of The Badlands in the southern hills of Redlands. Yucaipa Creek, flowing from Live Oak Canyon, joins San Timoteo Creek in San Timoteo Canyon. After the creek leaves the canyon it flows through Bryn Mawr and Loma Linda to its mouth on the Santa Ana River, near the I-10 and I-215 interchange.
This section needs expansion with: 1938, 1969, and 2010 floods; flood-control controversy and mitigation. You can help by adding to it. (December 2015)
Historically, San Timoteo Canyon was used as a travel corridor by Native Americans and Spanish ranchers. San Timoteo Canyon Road was used by stage coaches from the 1880s through the 1920s. By the 1910s the road was being used by cars.
In the 19th century the village of Saahatpa was established in San Timoteo Canyon by Chief Juan Antonio and his band of Cahuilla Indians. The village was abandoned after a devastating smallpox epidemic in 1862–63.
During the great Los Angeles flood of 1938, the creek flooded, causing damage and destruction. In 1969, the creek overflowed its banks again, causing damage in Redlands and inundating two-thirds of Loma Linda. Many of the bridges over the creek washed away, and Loma Linda Academy was completely flooded. These floods led to controversial calls for flood control on the creek. The federal government made appropriations for channelization of the entire creek in 1988, but local opposition to the measure was strong. Eventually, a compromise measure was reached, in which the creek was only partially channelized in 2008 by the US Army Corps of Engineers. In 2010, the creek again flooded parts of Loma Linda. In 2013, the Corps of Engineers completed a flood control mitigation project which included maintenance and revegetation.
The creek is a popular local venue for hiking and mountain biking.
Flood control and environmental projects
Urbanization is occurring rapidly in the San Timoteo watershed, resulting in an increased potential for floods. The United States Army Corps of Engineers has built flood control structures along most of the lower reaches of the creek. A concrete-lined channel runs from the confluence of the Santa Ana River 3.1 mi (5.0 km) upstream. Due to public opposition regarding extending the concrete channel in more upstream portions of San Timoteo Creek, flood control upstream of the concrete section uses a soft-bottom channel through most of the project.
The Environmental Protection Agency, in cooperation with San Bernardino County, Redlands, and Loma Linda, are working to restore sections of San Timoteo Creek's riparian ecosystem to a close approximation of its natural state, while recognizing it is not possible to restore certain reaches to a pristine condition. San Timoteo Creek is one of the few remaining functional wildlife corridors linking the Santa Ana River and Prado Basins on the west with the San Bernardino, San Gorgonio, and San Jacinto Mountains to the east. San Timoteo is one of the last major drainage systems in the inland area of Southern California with some significant remnants of riparian vegetation and habitat.
- Rancho San Jacinto y San Gorgonio
- List of rivers of California
- List of tributaries of the Santa Ana River
- "San Timoteo Creek Habitat Enhancement Project Environmental Assessment" (PDF). US Environmental Protection Agency. 2007. Retrieved 10 April 2013.
- USGS Topo Maps for United States (Map). Cartography by United States Geological Survey. ACME Mapper. Retrieved 2013-04-10.
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- "USGS Gage #11057500 on San Timoteo Creek near Loma Linda, CA" (PDF). National Water Information System. U.S. Geological Survey. Retrieved 10 April 2013.
- U.S. Geological Survey Geographic Names Information System: San Timoteo Canyon
- "Baseline Report for Conservation Easement, #4 Portions of San Timoteo Canyon and Creek" (PDF). Redlands Conservancy. 2010. Retrieved 10 April 2013.
- Mornin, Edward; Mornin, Lorna (2009). Saints of California: A Guide to Places and Their Patrons. Getty Publications. p. 177. ISBN 978-0-89236-984-3. Retrieved 9 April 2013.
- Loma Linda. Arcadia Publishing. 2005. p. 7. ISBN 978-0-7385-3076-5. Retrieved 9 April 2013.
- Hoover, Mildred B.; Kyle, Douglas E. (2002). Historic Spots in California. Stanford University Press. p. 296. ISBN 978-0-8047-7817-6. Retrieved 9 April 2013.
- Salton Sea Altas. ESRI, Inc. 2002. p. 24. ISBN 978-1-58948-043-8. Retrieved 9 April 2013.
- Holtzclaw, Kenneth M.; Christian, Peggy (2007). San Timoteo Canyon. Arcadia Publishing. ISBN 978-0-7385-4744-2. Retrieved 9 April 2013.
- San Timoteo Nature Sanctuary Project, The Redlands Conservancy