Facts
- Overview
- Swing bridge over Old River on CA 4 in Discovery Bay
- Location
- San Joaquin County, California
- Status
- Open to traffic
- History
- Built 1915; rehabilitated 1978
- Design
- Swing
- Dimensions
-
Length of largest span: 131.9 ft.
Total length: 527.9 ft.
Deck width: 19.4 ft.
Vertical clearance above deck: 15.5 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +37.89167, -121.56833 (decimal degrees)
37°53'30" N, 121°34'06" W (degrees°minutes'seconds") - Inventory numbers
- CA 29-45 (California bridge number)
BH 11436 (Bridgehunter.com ID) - Inspection (as of 05/2006)
- Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 45.1 (out of 100) - Average daily traffic (as of 1997)
- 5,980