US Bridges

FM over Stream

Fair

Adair County, Iowa · 077332201 · Structure no. 000000000362351

Built
2001
24 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stream is a concrete continuous culvert carrying FM over Stream in Adair County, Iowa. It was built in 2001, so it is 24 years old, younger 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 100 vehicles a day, projected to reach 100 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesStream
Location077332201
RouteCounty Highway 0
StateIowa
Coordinates41.4607, -94.63369
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 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 traffic100 (2022)
Projected traffic100 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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM over Stream built?

It was built in 2001, making it 24 years old in 2025.

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 July 2024.

How much traffic does FM over Stream carry?

About 100 vehicles per day (2022 count).

How long is FM over Stream?

The structure is 24 ft (7.3 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.