US Bridges

FM over Stream

Fair

Poweshiek County, Iowa · 078150813 · Structure no. 000000000291620

Built
1969
56 years old, rebuilt 2023
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
152 ft
3 main spans
Daily traffic
2,000
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stream is a prestressed concrete stringer/multi-beam or girder carrying FM over Stream in Poweshiek County, Iowa. It was built in 1969 and reconstructed in 2023, so it is 56 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 5 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 2,000 vehicles a day, roughly 14% of them trucks, projected to reach 2,000 by 2043. The structure is 152 ft (46.3 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesFM
CrossesStream
Location078150813
RouteCounty Highway 0
CountyPoweshiek County
StateIowa
Coordinates41.57622, -92.61016
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
Deck9 ExcellentNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.3 US tons
Inventory rating20.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length152 ft (46.3 m)
Longest span56 ft (17.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2022)
Projected traffic2,000 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Stream built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2023.

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 December 2023.

How much traffic does FM over Stream carry?

About 2,000 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FM over Stream?

The structure is 152 ft (46.3 m) long with a longest span of 56 ft (17.1 m) and a deck 30 ft wide.

Who owns FM over Stream?

It is owned by the County Highway Agency.