US Bridges

FM over Middle Racoon

Fair

Guthrie County, Iowa · 081322708 · Structure no. 000000000170230

Built
1951
74 years old, rebuilt 2006
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
3 main spans
Daily traffic
428
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Middle Racoon is a steel continuous stringer/multi-beam or girder carrying FM over Middle Racoon in Guthrie County, Iowa. It was built in 1951 and reconstructed in 2006, so it is 74 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 428 vehicles a day, roughly 19% of them trucks, projected to reach 428 by 2043. The structure is 182 ft (55.5 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM
CrossesMiddle Racoon
Location081322708
RouteCounty Highway 0
StateIowa
Coordinates41.79861, -94.5611
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic428 (2022)
Projected traffic428 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Middle Racoon built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2006.

What condition is FM over Middle Racoon 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 2023.

How much traffic does FM over Middle Racoon carry?

About 428 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM over Middle Racoon?

The structure is 182 ft (55.5 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns FM over Middle Racoon?

It is owned by the County Highway Agency.