Karper Harbor RD over Johns Creek

Good Condition5 years old90 vehicles/day

Location

StateIowa
CountyDubuque
Location087010704
CarriesKarper Harbor RD
CrossesJohns Creek
Coordinates42.35975, -91.00471

Condition Ratings

Overall ConditionGood
Deck8 (Very Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical9 — Foundation above flood level

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length103.0 ft (31.4 m)
Max Span39.0 ft (11.9 m)
Deck Width33.1 ft (10.1 m)
Deck Area317.1 sq m
Main Spans3
Year Built2021

Traffic

Avg Daily Traffic90 (2021)
Lanes On Bridge2

Inspection & Ownership

Last Inspection323
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000145911

Nearby Bridges