US Bridges

FM over Bear Creek

FairPosted for load

Hardin County, Iowa · 086190907 · Structure no. 000000000174530

Built
1900
125 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Bear Creek is a concrete continuous slab carrying FM over Bear Creek in Hardin County, Iowa. It was built in 1900, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 59 vehicles a day, projected to reach 59 by 2044. The structure is 126 ft (38.4 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesBear Creek
Location086190907
RouteCounty Highway 0
StateIowa
Coordinates42.28143, -93.06548
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.1 US tons
Inventory rating20.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length126 ft (38.4 m)
Longest span49 ft (14.9 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Bear Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is FM over Bear 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 February 2024.

How much traffic does FM over Bear Creek carry?

About 59 vehicles per day (2022 count).

How long is FM over Bear Creek?

The structure is 126 ft (38.4 m) long with a longest span of 49 ft (14.9 m) and a deck 23 ft wide.

Who owns FM over Bear Creek?

It is owned by the County Highway Agency.