US Bridges

Ia 9 over Division ST

Fair

Winneshiek County, Iowa · 0.6 Mi. E of Ia. 52 · Structure no. 000000000052590

Built
1969
56 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
163 ft
3 main spans
Daily traffic
8,900
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 9 over Division ST is a prestressed concrete stringer/multi-beam or girder carrying Ia 9 over Division ST in Winneshiek County, Iowa. It was built in 1969, so it is 56 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 8,900 vehicles a day, roughly 10% of them trucks, projected to reach 8,900 by 2043. The structure is 163 ft (49.7 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 9
CrossesDivision ST
Location0.6 Mi. E of Ia. 52
RouteState Highway 9
CountyWinneshiek County
StateIowa
Coordinates43.29109, -91.79316
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.4 US tons
Inventory rating46.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span64 ft (19.5 m)
Deck width64 ft (19.6 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2022)
Projected traffic8,900 by 2043
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ia 9 over Division ST built?

It was built in 1969, making it 56 years old in 2025.

What condition is Ia 9 over Division ST in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Ia 9 over Division ST carry?

About 8,900 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 9 over Division ST?

The structure is 163 ft (49.7 m) long with a longest span of 64 ft (19.5 m) and a deck 64 ft wide.

Who owns Ia 9 over Division ST?

It is owned by the State Highway Agency.