Santiago Creek

Santiago Creek
Cañada de Madera
Low rock dam on Santiago Creek in Irvine Regional Park (c. 1917)
Map of the Santiago Creek watershed and surroundings
Location
CountryUnited States
StateCalifornia
CountyOrange
DistrictCleveland National Forest
MunicipalityOrange
Physical characteristics
SourceSantiago Peak
 • locationCleveland National Forest
 • coordinates33°42′58″N 117°32′21″W / 33.71611°N 117.53917°W / 33.71611; -117.53917[1]
 • elevation4,870 ft (1,480 m)
MouthSanta Ana River
 • location
Santa Ana
 • coordinates
33°46′11″N 117°53′27″W / 33.76972°N 117.89083°W / 33.76972; -117.89083[1]
 • elevation
108 ft (33 m)
Length34 mi (55 km)
Basin size100.6 sq mi (261 km2)
Discharge 
 • locationVilla Park
 • average6.3 cu ft/s (0.18 m3/s)
 • minimum0 cu ft/s (0 m3/s)
 • maximum11,000 cu ft/s (310 m3/s)
Basin features
Tributaries 
 • leftLimestone Canyon, Handy Creek
 • rightSilverado Canyon, Harding Canyon, Baker Canyon, Black Star Canyon, Fremont Canyon (Orange County, California), Weir Canyon

Santiago Creek is a major watercourse in Orange County in the U.S. state of California. About 34 miles (55 km) long, it drains most of the northern Santa Ana Mountains and is a tributary to the Santa Ana River. It is one of the longest watercourses entirely within the county.[2] The creek shares its name with Santiago Peak, at 5,687 ft (1,733 m) the highest point in Orange County, on whose slopes its headwaters rise.

The Santiago Creek watershed covers about 100.6 square miles (261 km2) in northern Orange County. The upper part of the creek is free-flowing, while the lower section is urbanized and includes parts of the cities of Tustin, Orange, and Santa Ana. Below the Villa Park Dam the creek is mostly channelized and flows only during heavy winter storms.

Historically the Santiago Creek provided water for the Tongva people, whose territory extended over much of northern present-day Orange County and into the Los Angeles Basin. Native Americans have inhabited the Santiago Creek and Santa Ana River watershed for up to 12,000 years. The creek was named by the Spanish Gaspar de Portolá expedition of 1769, which crossed the Santa Ana River near where it meets the Santiago Creek.[3] In the 1870s there was a short-lived silver boom along the tributary Silverado Creek. In 1929 the Santiago Dam was built to form Irvine Lake, to supply irrigation water. Pipelines from Irvine Lake still contribute a small amount of water to the municipality of Villa Park.

  1. ^ a b U.S. Geological Survey Geographic Names Information System: Santiago Creek. Retrieved on 9 October 2008.
  2. ^ San Juan Creek is approximately the same length, and the Santa Ana River is not entirely within Orange County.
  3. ^ "Cultural Resources Inventory and Evaluation for the Proposed Aliso Creek Inn and Golf Course Project, City of Laguna Beach, Orange County, California" (PDF). SWCA Environmental Consultants. October 2006. Archived from the original (PDF) on June 30, 2007. Retrieved 2009-09-09.