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Photos

Stanislaus River Hwy 99 SB San Joaquin Co

1903 arch

Photo taken by Craig Philpott

Overview: Concrete arch bridge over Stanislaus River on Southbound CA 99 in Ripon
Location: San Joaquin County, California, and Stanislaus County, California
Status: Open to traffic
History: Built 1908; rehabilitated 1967
Builder: - John B. Leonard (Engineer)
Design: Historic two span concrete closed spandrel arch, engineered by John B. Leonard, integrated into 1960's freeway bridge with addition of expanded concrete abutments and steel deck plate girders.
Dimensions: Length of largest span: 100.1 ft.
Total length: 1,219.9 ft.
Deck width: 46.9 ft.
Approximate latitude, longitude: +37.73000, -121.11000 (decimal degrees)
37°43'48" N, 121°06'36" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/666551/4177539 (zone/easting/northing)
USGS topographic map: Salida
Inventory numbers: CA 29-13L (California bridge number)
BH 11440 (Bridgehunter.com ID)
Inspection (as of 02/2012): Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Critical (2 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 19.0 (out of 100)
Average daily traffic (as of 2009): 53,500

April 23, 2013: Updated by Craig Philpott: added original bridge engineer and corrected date.
March 31, 2012: Updated by Craig Philpott: refined description and added photos
September 21, 2010: New Street View added by Craig Philpott
February 18, 2010: Updated by Craig Philpott: Added second county to location