U.s. Highway 101 over Sierra AVE

Fair Condition70 years old86,000 vehicles/day

Location

StateCalifornia
CountySonoma
Location04-son-101-12.00-coti
CarriesU.s. Highway 101
CrossesSierra AVE
Coordinates38.32129, -122.71341

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length121.4 ft (37 m)
Max Span45.9 ft (14 m)
Deck Width113.5 ft (34.6 m)
Deck Area1280.2 sq m
Main Spans3
Year Built1956 (reconstructed 2011)

Traffic

Avg Daily Traffic86,000 (2016)
Truck Traffic6%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number20 0167

Nearby Bridges