NB I-35 over 310th ST

Fair Condition56 years old7,100 vehicles/day

Location

StateIowa
CountyDecatur
Location2.5 Mi. S Of US 69
CarriesNB I-35
Crosses310th ST
Coordinates40.59444, -93.91602

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length177.2 ft (54 m)
Max Span65.9 ft (20.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area723.6 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic7,100 (2022)
Truck Traffic39%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000022830

Nearby Bridges

SB I-35 over 310th Street 0.1 mi Fair FM over Seven Mile Creek 0.1 mi Poor NB I-35 over Stream 0.2 mi Fair SB I-35 over Stream 0.4 mi Good NB I-35 over Stream 0.5 mi Fair FM over Seven Mile Creek 0.6 mi Poor Local over Seven Mile Creek 1.2 mi Poor Local over Seven Mile Creek 1.4 mi Poor SB I-35 over 324th Street 1.7 mi Fair NB I-35 over 324th Street 1.7 mi Fair