State Route 4 WB over Lone Tree Way

Fair Condition18 years old40,000 vehicles/day

Location

StateCalifornia
CountyContra Costa
Location04-cc-004-r32.94-btwd
CarriesState Route 4 WB
CrossesLone Tree Way
Coordinates37.96192, -121.74266

Condition Ratings

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

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length248.7 ft (75.8 m)
Max Span122.4 ft (37.3 m)
Deck Width66.6 ft (20.3 m)
Deck Area1538.7 sq m
Main Spans2
Year Built2008

Traffic

Avg Daily Traffic40,000 (2017)
Truck Traffic10%
Lanes On Bridge3
Lanes Under Bridge6

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number28 0391L

Nearby Bridges