US Bridges

FM over Br North Raccoon River

Fair

Dallas County, Iowa · 081290403 · Structure no. 000000000132710

Built
1915
110 years old, rebuilt 1990
Condition
Fair
inspected November 2022
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Br North Raccoon River is a concrete slab carrying FM over Br North Raccoon River in Dallas County, Iowa. It was built in 1915 and reconstructed in 1990, so it is 110 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40 vehicles a day, projected to reach 40 by 2043. The structure is 23 ft (7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM
CrossesBr North Raccoon River
Location081290403
RouteCounty Highway 0
CountyDallas County
StateIowa
Coordinates41.85094, -94.24026
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating55.7 US tons
Inventory rating34.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic40 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Br North Raccoon River built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1990.

What condition is FM over Br North Raccoon River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2022.

How much traffic does FM over Br North Raccoon River carry?

About 40 vehicles per day (2022 count).

How long is FM over Br North Raccoon River?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns FM over Br North Raccoon River?

It is owned by the County Highway Agency.