FM over Dry Run

Fair

Osceola County, Iowa · 098390801 · Structure no. 000000000262380

Built: 1954; 71 years old, rebuilt 1972
Condition: Fair; inspected November 2024
Type: Culvert; Concrete Continuous
Length: 26 ft; 2 main spans
Daily traffic: 738; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Dry Run is a concrete continuous culvert carrying FM over Dry Run in Osceola County, Iowa. It was built in 1954 and reconstructed in 1972, so it is 71 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 6 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 738 vehicles a day, roughly 25% of them trucks, projected to reach 738 by 2044. The structure is 26 ft (7.9 m) long.

Location

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CarriesFM

CrossesDry Run

Location098390801

RouteCounty Highway 0

CountyOsceola County

StateIowa

Coordinates43.32799, -95.48213

Functional classRural Major 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	8 Very Good	No problems noted.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionNovember 2024

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 rating35.6 US tons

Inventory rating22.2 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadHS 20

Structure length26 ft (7.9 m)

Longest span12 ft (3.7 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic738 (2022)

Projected traffic738 by 2044

Trucks25%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed—

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 Dry Run built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1972.

What condition is FM over Dry Run 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 November 2024.

How much traffic does FM over Dry Run carry?

About 738 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is FM over Dry Run?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns FM over Dry Run?

It is owned by the County Highway Agency.