US Bridges

FM over Wapsipinicon River

Poor

Chickasaw County, Iowa · 095141204 · Structure no. 000000000019980

Built
1956
69 years old
Condition
Poor
inspected March 2023
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
550
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Wapsipinicon River is a concrete continuous slab carrying FM over Wapsipinicon River in Chickasaw County, Iowa. It was built in 1956, so it is 69 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.

It carries about 550 vehicles a day, roughly 18% of them trucks, projected to reach 550 by 2043. The structure is 127 ft (38.7 m) long and 35 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesFM
CrossesWapsipinicon River
Location095141204
RouteCounty Highway 0
StateIowa
Coordinates43.06537, -92.45572
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length127 ft (38.7 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2022)
Projected traffic550 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 1956, making it 69 years old in 2025.

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 2023.

How much traffic does FM over Wapsipinicon River carry?

About 550 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is FM over Wapsipinicon River?

The structure is 127 ft (38.7 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns FM over Wapsipinicon River?

It is owned by the County Highway Agency.