Facts
- Overview
- Rainbow arch bridge over Abandoned NWP Railroad on Alexander Avenue in Larkspur
- Location
- Marin County, California
- Status
- Open to traffic
- History
- Built 1925
- Design
- Concrete through arch
- Dimensions
-
Length of largest span: 38.1 ft.
Total length: 164.1 ft.
Deck width: 20.3 ft.
- Recognition
- Posted to the National Register of Historic Places
- Approximate latitude, longitude
- +37.93000, -122.53194 (decimal degrees)
37°55'48" N, 122°31'55" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/541133/4198151 (zone/easting/northing)
- USGS topographic map
- San Rafael
- Inventory numbers
- CA 27C-150 (California bridge number)
BH 11078 (Bridgehunter.com ID) - Inspection (as of 07/2007)
- Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 29.8 (out of 100) - Average daily traffic (as of 1982)
- 150