FM over Small Stream

Good

Iowa County, Iowa · 081111202 · Structure no. 000000000191411

Built: 2000; 25 years old
Condition: Good; inspected March 2022
Type: Slab; Concrete Continuous
Length: 112 ft; 3 main spans
Daily traffic: 1,230; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Small Stream is a concrete continuous slab carrying FM over Small Stream in Iowa County, Iowa. It was built in 2000, so it is 25 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,230 vehicles a day, roughly 16% of them trucks, projected to reach 1,230 by 2043. The structure is 112 ft (34.1 m) long and 33 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesFM

CrossesSmall Stream

Location081111202

RouteCounty Highway 0

CountyIowa County

StateIowa

Coordinates41.83461, -92.08273

Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionMarch 2022

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating91.9 US tons

Inventory rating55.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length112 ft (34.1 m)

Longest span44 ft (13.4 m)

Deck width33 ft (10 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,230 (2022)

Projected traffic1,230 by 2043

Trucks16%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed21.1 mi (34 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 Small Stream built?

It was built in 2000, making it 25 years old in 2025.

What condition is FM over Small Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2022.

How much traffic does FM over Small Stream carry?

About 1,230 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is FM over Small Stream?

The structure is 112 ft (34.1 m) long with a longest span of 44 ft (13.4 m) and a deck 33 ft wide.

Who owns FM over Small Stream?

It is owned by the County Highway Agency.