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Boulder Creek Bridge

Photo taken by Michael Goff in October 2011

Overview: Open-spandrel arch bridge over Boulder Creek on Highland Lakes Road (Ols US 99)
Location: Shasta County, California
Status: Open to traffic
History: Built 1928
Builder: - Charles E. Andrew (Bridge Engineer)
Design: Open-spandrel deck arch
Dimensions: Length of largest span: 81.7 ft.
Total length: 145.3 ft.
Deck width: 24.0 ft.
Approximate latitude, longitude: +41.01611, -122.40611 (decimal degrees)
41°00'58" N, 122°24'22" W (degrees°minutes'seconds")
Approximate UTM coordinates: 10/549934/4540715 (zone/easting/northing)
USGS topographic map: Chicken Hawk Hill
Inventory numbers: CA 06C-349 (California bridge number)
BH 50296 (Bridgehunter.com ID)
Inspection (as of 09/2011): Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 55.1 (out of 100)
Average daily traffic (as of 1990): 500