SB Ia 1 over Ralston Creek

Fair Condition73 years old3,650 vehicles/day

Location

StateIowa
CountyJohnson
Location2.5 Mi. S Of Jct. I-80
CarriesSB Ia 1
CrossesRalston Creek
Coordinates41.66067, -91.52576

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length56.1 ft (17.1 m)
Max Span49.9 ft (15.2 m)
Deck Width43.0 ft (13.1 m)
Deck Area224.0 sq m
Main Spans1
Year Built1953

Traffic

Avg Daily Traffic3,650 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000031750

Nearby Bridges

Johnson ST over Ralston Creek 0.1 mi Poor Iowa AVE over Ralston Creek 0.1 mi Poor Washington ST over Ralston Creek 0.1 mi Poor Ia 1 NB over Ralston Creek 0.2 mi Good College ST over Ralston Creek 0.2 mi Fair Ia 1 over Ralston Creek 0.3 mi Fair Evans ST over Ralston Creek 0.3 mi Poor Van Buren ST over Ralston Creek 0.3 mi Poor Gilbert ST over Ralston Creek 0.4 mi Poor Prentiss ST over Ralston Creek 0.5 mi Good