US Bridges

FM over Wapsipinicon River

PoorPosted for load

Chickasaw County, Iowa · 096140901 · Structure no. 000000000112770

Built
1957
68 years old, rebuilt 1992
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
170 ft
3 main spans
Daily traffic
501
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Wapsipinicon River is a prestressed concrete stringer/multi-beam or girder carrying FM over Wapsipinicon River in Chickasaw County, Iowa. It was built in 1957 and reconstructed in 1992, so it is 68 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 501 vehicles a day, projected to reach 501 by 2044. The structure is 170 ft (51.8 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesFM
CrossesWapsipinicon River
Location096140901
RouteCounty Highway 0
StateIowa
Coordinates43.1563, -92.5095
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating35.2 US tons
Inventory rating12.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length170 ft (51.8 m)
Longest span57 ft (17.4 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic501 (2022)
Projected traffic501 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Wapsipinicon River built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1992.

What condition is FM over Wapsipinicon River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does FM over Wapsipinicon River carry?

About 501 vehicles per day (2022 count).

How long is FM over Wapsipinicon River?

The structure is 170 ft (51.8 m) long with a longest span of 57 ft (17.4 m) and a deck 33 ft wide.

Who owns FM over Wapsipinicon River?

It is owned by the County Highway Agency.