Facts
- Overview
- Concrete arch bridge over Mad River on Butler Valley Road
- Location
- Humboldt County, California
- Status
- Open to traffic
- History
- Built 1937; rehabilitated 1965
- Design
- Arch
- Dimensions
-
Length of largest span: 132.9 ft.
Total length: 203.1 ft.
Deck width: 20.3 ft.
- Approximate latitude, longitude
- +40.76500, -123.88889 (decimal degrees)
40°45'54" N, 123°53'20" W (degrees°minutes'seconds") - Inventory numbers
- CA 4C-52 (California bridge number)
BH 10894 (Bridgehunter.com ID) - Inspection (as of 11/2004)
- Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 76.4 (out of 100) - Average daily traffic (as of 1976)
- 100