US Bridges

Ia 9 over Wapsipinicon River

Fair

Mitchell County, Iowa · 1.5 Mi. E of E JCT SR T62 · Structure no. 000000000036561

Built
1979
46 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
3 main spans
Daily traffic
1,780
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 9 over Wapsipinicon River is a prestressed concrete stringer/multi-beam or girder carrying Ia 9 over Wapsipinicon River in Mitchell County, Iowa. It was built in 1979, so it is 46 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 6 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 1,780 vehicles a day, roughly 20% of them trucks, projected to reach 1,780 by 2044. The structure is 188 ft (57.3 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIa 9
CrossesWapsipinicon River
Location1.5 Mi. E of E JCT SR T62
RouteState Highway 9
CountyMitchell County
StateIowa
Coordinates43.36384, -92.56229
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length188 ft (57.3 m)
Longest span82 ft (25 m)
Deck width47 ft (14.3 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,780 (2022)
Projected traffic1,780 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 9 over Wapsipinicon River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Ia 9 over Wapsipinicon River 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 2024.

How much traffic does Ia 9 over Wapsipinicon River carry?

About 1,780 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Ia 9 over Wapsipinicon River?

The structure is 188 ft (57.3 m) long with a longest span of 82 ft (25 m) and a deck 47 ft wide.

Who owns Ia 9 over Wapsipinicon River?

It is owned by the State Highway Agency.