FM over Stream

Fair

Woodbury County, Iowa · 087442104 · Structure no. 000000000352160

Built: 1958; 67 years old
Condition: Fair; inspected June 2023
Type: Culvert; Concrete Continuous
Length: 25 ft; 2 main spans
Daily traffic: 71; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Stream is a concrete continuous culvert carrying FM over Stream in Woodbury County, Iowa. It was built in 1958, so it is 67 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 71 vehicles a day, roughly 27% of them trucks, projected to reach 71 by 2043. The structure is 25 ft (7.6 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFM

CrossesStream

Location087442104

RouteCounty Highway 0

CountyWoodbury County

StateIowa

Coordinates42.33113, -95.97619

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	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.

Last inspectionJune 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 geometry9: Superior to present desirable criteria

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating36 US tons

Inventory rating27 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadUnknown

Structure length25 ft (7.6 m)

Longest span12 ft (3.7 m)

Deck width40 ft (12.2 m)

Roadway width40 ft (12.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71 (2022)

Projected traffic71 by 2043

Trucks27%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation

Estimated improvement cost$446,000 (2023 estimate)

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Stream built?

It was built in 1958, making it 67 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 June 2023.

How much traffic does FM over Stream carry?

About 71 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is FM over Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 40 ft wide.

Who owns FM over Stream?

It is owned by the County Highway Agency.