De Long Avenue over U.s. Highway 101

Fair Condition52 years old30,160 vehicles/day

Location

StateCalifornia
CountyMarin
Location04-mrn-101-r21.11-nvto
CarriesDe Long Avenue
CrossesU.s. Highway 101
Coordinates38.10495, -122.56257

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure5 (Fair)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length221.1 ft (67.4 m)
Max Span109.9 ft (33.5 m)
Deck Width97.1 ft (29.6 m)
Deck Area1995.0 sq m
Main Spans2
Year Built1974

Traffic

Avg Daily Traffic30,160 (2000)
Truck Traffic1%
Lanes On Bridge6
Lanes Under Bridge7

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number27 0091

Nearby Bridges

De Long Avenue over Ncrra (old Nwp Rr) 0.1 mi Good U.s. Highway 101 over Franklin Av & Nwp Rr 0.2 mi Fair U.s. Highway 101 over Franklin Av & Nwp Rr 0.2 mi Good U.s. HWY 101 NB over Olive Avenue 0.4 mi Fair U.s. HWY 101 SB over Olive Avenue 0.4 mi Fair Redwood BLVD over Novato Creek 0.6 mi Good Redwood BLVD over Novato Creek 0.6 mi Fair South Novato BLVD over Warner Creek 0.6 mi Good Diablo AVE over Novato Creek 0.6 mi Fair U.s. Highway 101 over Novato Creek 0.6 mi Poor