Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 100.6 m = 330.1 ft
Main Spans: 4 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 7.7 m = 25.3 ft for a 10 m = 32.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Unknown [00000]: Sonoma County [097], California [06]
Owned by County Highway Agency [02], DOT District: 4
0.5 MI WEST OF US 101
Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 24.3 metric ton = 26.7 tons (Allowable Stress(AS) [2])
Inventory: 14.6 metric ton = 16.1 tons (Allowable Stress(AS) [2])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: October 2020 [1020] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.8 km = 1.1 mi
Traffic
ADT: 6100 (2015) and Trucks: 2%
Future ADT: 7141 (In 2040
)
