Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 18.3 m = 60.0 ft
Main Spans: 1 at 17.1 m = 56.1 ft
Approach Spans: 0
Skew: 18
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 8.3 m = 27.2 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Marin County [041], California [06]
Owned by County Highway Agency [02], DOT District: 4
5.9 MI E OF SH 1
Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
Operating: 33.4 metric ton = 36.7 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 23 metric ton = 25.3 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 2017 [0817] and Frequency: 48
Future Work
Work Needed:
Bridge Detour: 2.7 km = 1.7 mi
Traffic
ADT: 2000 (1975) and Trucks: 10%
Future ADT: 5879 (In 2035
)
