US Bridges

FM over Stream

Fair

Monona County, Iowa · 084420602 · Structure no. 000000000250405

Built
1959
66 years old, rebuilt 2013
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
329
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stream is a concrete continuous culvert carrying FM over Stream in Monona County, Iowa. It was built in 1959 and reconstructed in 2013, so it is 66 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 329 vehicles a day, roughly 18% of them trucks, projected to reach 329 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesFM
CrossesStream
Location084420602
RouteCounty Highway 0
CountyMonona County
StateIowa
Coordinates42.11822, -95.7876
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
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 traffic329 (2022)
Projected traffic329 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Stream built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2013.

What condition is FM over Stream 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 Stream carry?

About 329 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is FM over Stream?

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

Who owns FM over Stream?

It is owned by the County Highway Agency.