Ia 1 over English River

Fair Condition47 years old4,120 vehicles/day

Location

StateIowa
CountyWashington
Location1.1 Mi. S Of Jct. Ia 22
CarriesIa 1
CrossesEnglish River
Coordinates41.46927, -91.71455

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure5 (Fair)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length347.1 ft (105.8 m)
Max Span97.1 ft (29.6 m)
Deck Width47.2 ft (14.4 m)
Deck Area1523.5 sq m
Main Spans4
Year Built1979

Traffic

Avg Daily Traffic4,120 (2022)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000051671

Nearby Bridges