US Bridges

FM over Branch Bear Creek

Fair

Grundy County, Iowa · 087183101 · Structure no. 000000000164530

Built
1964
61 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
98
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Branch Bear Creek is a concrete continuous culvert carrying FM over Branch Bear Creek in Grundy County, Iowa. It was built in 1964, so it is 61 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 98 vehicles a day, roughly 23% of them trucks, projected to reach 98 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesBranch Bear Creek
Location087183101
RouteCounty Highway 0
StateIowa
Coordinates42.31063, -93.00117
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.2 US tons
Inventory rating27.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2022)
Projected traffic98 by 2044
Trucks23%
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 Branch Bear Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is FM over Branch 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 April 2024.

How much traffic does FM over Branch Bear Creek carry?

About 98 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is FM over Branch Bear Creek?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m).

Who owns FM over Branch Bear Creek?

It is owned by the County Highway Agency.