US Bridges

FM over Bear Creek

Poor

Benton County, Iowa · 083101306 · Structure no. 000000000365430

Built
1957
68 years old
Condition
Poor
inspected April 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,414
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Bear Creek is a concrete continuous culvert carrying FM over Bear Creek in Benton County, Iowa. It was built in 1957, so it is 68 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,414 vehicles a day, roughly 7% of them trucks, projected to reach 1,414 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesBear Creek
Location083101306
RouteCounty Highway 0
StateIowa
Coordinates41.99756, -91.97024
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,414 (2022)
Projected traffic1,414 by 2043
Trucks7%
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 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 1957, making it 68 years old in 2025.

What condition is FM over Bear Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does FM over Bear Creek carry?

About 1,414 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is FM over Bear Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns FM over Bear Creek?

It is owned by the County Highway Agency.