FM over Small Stream

Fair

Taylor County, Iowa · 069350704 · Structure no. 000000000323020

Built: 1956; 69 years old
Condition: Fair; inspected May 2023
Type: Culvert; Concrete
Length: 24 ft; 2 main spans
Daily traffic: 79; 2021 count
Owner: County; County Highway Agency

About this bridge

FM over Small Stream is a concrete culvert carrying FM over Small Stream in Taylor County, Iowa. It was built in 1956, so it is 69 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 79 vehicles a day, projected to reach 79 by 2043. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM

CrossesSmall Stream

Location069350704

RouteCounty Highway 0

CountyTaylor County

StateIowa

Coordinates40.78908, -94.92837

Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Channel and channel protection	7 Good	Some minor problems.
Culvert	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.

Last inspectionMay 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

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating51.6 US tons

Inventory rating30.9 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadH 20

Structure length24 ft (7.3 m)

Longest span12 ft (3.7 m)

Deck width28 ft (8.5 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2021)

Projected traffic79 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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 Small Stream built?

It was built in 1956, making it 69 years old in 2025.

What condition is FM over Small 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 2023.

How much traffic does FM over Small Stream carry?

About 79 vehicles per day (2021 count).

How long is FM over Small Stream?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns FM over Small Stream?

It is owned by the County Highway Agency.