Ia 1 over South Walnut Creek

Fair Condition57 years old2,560 vehicles/day

Location

StateIowa
CountyJefferson
Location5.8 Mi. S Of S Jct. Ia 78
CarriesIa 1
CrossesSouth Walnut Creek
Coordinates41.09435, -91.96721

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length204.1 ft (62.2 m)
Max Span82.0 ft (25 m)
Deck Width47.6 ft (14.5 m)
Deck Area901.9 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic2,560 (2022)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000031400

Nearby Bridges

FM over Creek 1.5 mi Poor Local over South Walnut Creek 2.3 mi Fair Mahogany AVE over Drainage 2.4 mi Good Local over Walnut Creek 2.5 mi Fair Ia 1 over Middle Walnut Creek 2.6 mi Fair FM over Middle Walnut Creek 2.7 mi Good Local over South Walnut Creek 3.1 mi Fair Local over Mitchell Creek 3.1 mi Poor FM over Middle Walnut 3.2 mi Fair FM over Brush Creek 3.4 mi Good