US Bridges

FM over Middle Fork Beaver Creek

Fair

Grundy County, Iowa · 089182502 · Structure no. 000000000166361

Built
1978
47 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
953
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Middle Fork Beaver Creek is a concrete continuous slab carrying FM over Middle Fork Beaver Creek in Grundy County, Iowa. It was built in 1978, so it is 47 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 5 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 953 vehicles a day, roughly 22% of them trucks, projected to reach 953 by 2044. The structure is 116 ft (35.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesMiddle Fork Beaver Creek
Location089182502
RouteCounty Highway 0
StateIowa
Coordinates42.49016, -92.9282
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating31.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length116 ft (35.4 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic953 (2022)
Projected traffic953 by 2044
Trucks22%
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 Middle Fork Beaver Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is FM over Middle Fork Beaver Creek 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 April 2024.

How much traffic does FM over Middle Fork Beaver Creek carry?

About 953 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is FM over Middle Fork Beaver Creek?

The structure is 116 ft (35.4 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns FM over Middle Fork Beaver Creek?

It is owned by the County Highway Agency.