State Route 4 WB over Somersville Road

Good Condition13 years old57,000 vehicles/day

Location

StateCalifornia
CountyContra Costa
Location04-cc-004-26.01-ant
CarriesState Route 4 WB
CrossesSomersville Road
Coordinates38.00400, -121.83781

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length231.6 ft (70.6 m)
Max Span122.0 ft (37.2 m)
Deck Width70.9 ft (21.6 m)
Deck Area1525.0 sq m
Main Spans2
Year Built2013

Traffic

Avg Daily Traffic57,000 (2017)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge9

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number28 0398L

Nearby Bridges

State Route 4 EB over Somersville Road 0.0 mi Good WB Route 4 Offramp over Somersville Road 0.0 mi Good Somersville Road over Contra Costa Canal 0.8 mi Good Buchanan RD over Contra Costa Canal 0.8 mi Good West Tenth Street over West Antioch Creek 0.9 mi Good State Route 4 EB over Contra Loma BLVD 0.9 mi Good State Route 4 WB over Contra Loma BLVD 0.9 mi Good Gentrytown Drive over Contra Costa Canal 1.0 mi Good State Route 4 EB over Century BLVD 1.0 mi Good State Route 4 WB over Century BLVD 1.0 mi Fair