US Bridges

FM over Little Wapsipinicon

Good

Chickasaw County, Iowa · 097142501 · Structure no. 000000000113411

Built
2009
16 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
187
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Little Wapsipinicon is a concrete continuous slab carrying FM over Little Wapsipinicon in Chickasaw County, Iowa. It was built in 2009, so it is 16 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 187 vehicles a day, roughly 17% of them trucks, projected to reach 187 by 2043. The structure is 153 ft (46.6 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFM
CrossesLittle Wapsipinicon
Location097142501
RouteCounty Highway 0
StateIowa
Coordinates43.19825, -92.45204
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating49.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span59 ft (18 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic187 (2022)
Projected traffic187 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Wapsipinicon built?

It was built in 2009, making it 16 years old in 2025.

What condition is FM over Little Wapsipinicon 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 March 2023.

How much traffic does FM over Little Wapsipinicon carry?

About 187 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is FM over Little Wapsipinicon?

The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns FM over Little Wapsipinicon?

It is owned by the County Highway Agency.