US Bridges

FM over Br Big Elkhorn Ck

FairPosted for load

Cedar County, Iowa · 079012603 · Structure no. 000000000101591

Built
1978
47 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
80
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Br Big Elkhorn Ck is a concrete continuous slab carrying FM over Br Big Elkhorn Ck in Cedar 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 6 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 80 vehicles a day, projected to reach 80 by 2043. The structure is 101 ft (30.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesBr Big Elkhorn Ck
Location079012603
RouteCounty Highway 0
StateIowa
Coordinates41.61892, -90.93484
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating39 US tons
Inventory rating23.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2021)
Projected traffic80 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Br Big Elkhorn Ck built?

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

What condition is FM over Br Big Elkhorn Ck 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 2023.

How much traffic does FM over Br Big Elkhorn Ck carry?

About 80 vehicles per day (2021 count).

How long is FM over Br Big Elkhorn Ck?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns FM over Br Big Elkhorn Ck?

It is owned by the County Highway Agency.