FM over Stream

Fair

Keokuk County, Iowa · 075110602 · Structure no. 000000000210561

Built: 1988; 37 years old
Condition: Fair; inspected March 2024
Type: Slab; Concrete Continuous
Length: 135 ft; 3 main spans
Daily traffic: 780; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Stream is a concrete continuous slab carrying FM over Stream in Keokuk County, Iowa. It was built in 1988, so it is 37 years old, younger 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 780 vehicles a day, roughly 12% of them trucks, projected to reach 780 by 2044. The structure is 135 ft (41.1 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM

CrossesStream

Location075110602

RouteCounty Highway 0

CountyKeokuk County

StateIowa

Coordinates41.33485, -92.18095

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

Last inspectionMarch 2024

Inspection intervalevery 48 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 geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating91.4 US tons

Inventory rating54.8 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length135 ft (41.1 m)

Longest span53 ft (16.2 m)

Deck width33 ft (10.1 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2022)

Projected traffic780 by 2044

Trucks12%

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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost$30,000 (2024 estimate)

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Stream built?

It was built in 1988, making it 37 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 March 2024.

How much traffic does FM over Stream carry?

About 780 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM over Stream?

The structure is 135 ft (41.1 m) long with a longest span of 53 ft (16.2 m) and a deck 33 ft wide.

Who owns FM over Stream?

It is owned by the County Highway Agency.