Facts
- Overview
- Stone arch bridge over Diamond Mountain Creek on CA 29
- Location
- Napa County, California
- Status
- Open to traffic
- History
- Built 1905; rehabilitated 1988
- Design
- Stone arch
- Dimensions
-
Length of largest span: 22.0 ft.
Total length: 22.0 ft.
Deck width: 44.0 ft.
- Approximate latitude, longitude
- +38.55944, -122.56333 (decimal degrees)
38°33'34" N, 122°33'48" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/538045/4267979 (zone/easting/northing)
- USGS topographic map
- Calistoga
- Inventory numbers
- CA 21-60 (California bridge number)
BH 11194 (Bridgehunter.com ID) - Inspection (as of 04/2007)
- Superstructure condition rating: Very Good (8 out of 9)
Sufficiency rating: 51.8 (out of 100) - Average daily traffic (as of 1997)
- 10,200