US Bridges

FM over West Des Moines River

Good

Emmet County, Iowa · 100343408 · Structure no. 000000000149211

Built
2006
19 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
709
2022 count
Owner
County
County Highway Agency

About this bridge

FM over West Des Moines River is a prestressed concrete stringer/multi-beam or girder carrying FM over West Des Moines River in Emmet County, Iowa. It was built in 2006, so it is 19 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 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 709 vehicles a day, roughly 27% of them trucks, projected to reach 709 by 2044. The structure is 213 ft (64.9 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesWest Des Moines River
Location100343408
RouteCounty Highway 0
StateIowa
Coordinates43.43509, -94.84677
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 rating70.5 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span77 ft (23.5 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic709 (2022)
Projected traffic709 by 2044
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 West Des Moines River built?

It was built in 2006, making it 19 years old in 2025.

What condition is FM over West Des Moines River 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 August 2024.

How much traffic does FM over West Des Moines River carry?

About 709 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is FM over West Des Moines River?

The structure is 213 ft (64.9 m) long with a longest span of 77 ft (23.5 m) and a deck 36 ft wide.

Who owns FM over West Des Moines River?

It is owned by the County Highway Agency.