State Route 4 over Silver Creek

Good Condition40 years old580 vehicles/day

Location

StateCalifornia
CountyAlpine
Location10-alp-004-27.98
CarriesState Route 4
CrossesSilver Creek
Coordinates38.62053, -119.74137

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length59.7 ft (18.2 m)
Max Span57.1 ft (17.4 m)
Deck Width32.2 ft (9.8 m)
Deck Area178.4 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic580 (2009)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number31 0012

Nearby Bridges