US Bridges

FM over Beaver Creek

Fair

Boone County, Iowa · 082280301 · Structure no. 000000000077190

Built
1948
77 years old, rebuilt 1993
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
183 ft
3 main spans
Daily traffic
279
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Beaver Creek is a steel continuous stringer/multi-beam or girder carrying FM over Beaver Creek in Boone County, Iowa. It was built in 1948 and reconstructed in 1993, so it is 77 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 279 vehicles a day, roughly 9% of them trucks, projected to reach 279 by 2044. The structure is 183 ft (55.8 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesBeaver Creek
Location082280301
RouteCounty Highway 0
StateIowa
Coordinates41.95014, -94.10374
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.2 US tons
Inventory rating25.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic279 (2022)
Projected traffic279 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Beaver Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1993.

What condition is FM over 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 May 2024.

How much traffic does FM over Beaver Creek carry?

About 279 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FM over Beaver Creek?

The structure is 183 ft (55.8 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns FM over Beaver Creek?

It is owned by the County Highway Agency.