US Bridges

FM over Little Wapsi

Good

Chickasaw County, Iowa · 095133401 · Structure no. 000000000111711

Built
1974
51 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
272 ft
6 main spans
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Little Wapsi is a concrete continuous slab carrying FM over Little Wapsi in Chickasaw County, Iowa. It was built in 1974, so it is 51 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 69 vehicles a day, projected to reach 69 by 2043. The structure is 272 ft (82.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesLittle Wapsi
Location095133401
RouteCounty Highway 0
StateIowa
Coordinates43.00845, -92.37349
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length272 ft (82.9 m)
Longest span49 ft (14.9 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic69 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Little Wapsi built?

It was built in 1974, making it 51 years old in 2025.

What condition is FM over Little Wapsi in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does FM over Little Wapsi carry?

About 69 vehicles per day (2022 count).

How long is FM over Little Wapsi?

The structure is 272 ft (82.9 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.

Who owns FM over Little Wapsi?

It is owned by the County Highway Agency.