Ia 9 over Mississippi River

Poor Condition95 years old2,200 vehicles/day

Location

StateIowa
CountyAllamakee
LocationIn Lansing
CarriesIa 9
CrossesMississippi River
Coordinates43.36451, -91.21691

Condition Ratings

Overall ConditionPoor
Deck6 (Satisfactory)
Superstructure4 (Poor)
Substructure5 (Fair)
Channel/Waterway6 (Satisfactory)
Scour Critical7 — Countermeasures installed

Physical Characteristics

MaterialSteel Continuous
DesignTruss - Thru
Total Length1629.9 ft (496.8 m)
Max Span651.9 ft (198.7 m)
Deck Width22.6 ft (6.9 m)
Deck Area3427.9 sq m
Main Spans3
Year Built1931 (reconstructed 1955)

Traffic

Avg Daily Traffic2,200 (2022)
Truck Traffic12%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection823
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Structure Number000000000013520

Nearby Bridges

Sth 82 over Mississippi River 04 0.0 mi Poor Front ST over Clear Creek 0.4 mi Good 4th ST over Clear Creek 0.4 mi Good Sth 82 over Big Slough 0.5 mi Fair South Road over Clear Creek 1.1 mi Good FM over Village Creek 1.4 mi Fair Sth 82 over Stevens Slough 1.4 mi Fair Sth 82 over Henderson Slough 2.2 mi Good Sth 82 over Bn Rr/winneshiek Slough 2.6 mi Fair Ia 9 over Clear Creek 3.0 mi Good