US Bridges

FM over Small Stream

Poor

Poweshiek County, Iowa · 081152402 · Structure no. 000000000294601

Built
1968
57 years old
Condition
Poor
inspected December 2023
Type
Channel Beam
Concrete
Length
25 ft
1 main span
Daily traffic
10
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Small Stream is a concrete channel beam carrying FM over Small Stream in Poweshiek County, Iowa. It was built in 1968, so it is 57 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10 vehicles a day, projected to reach 10 by 2043. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFM
CrossesSmall Stream
Location081152402
RouteCounty Highway 0
CountyPoweshiek County
StateIowa
Coordinates41.80728, -92.55227
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.4 US tons
Inventory rating31.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$364,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Small Stream built?

It was built in 1968, making it 57 years old in 2025.

What condition is FM over Small Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does FM over Small Stream carry?

About 10 vehicles per day (2022 count).

How long is FM over Small Stream?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns FM over Small Stream?

It is owned by the County Highway Agency.