US Bridges

FM 250th ST over Black Cat Creek

Fair

Kossuth County, Iowa · 096292401 · Structure no. 000000000215341

Built
1979
46 years old, rebuilt 1999
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
210
2022 count
Owner
County
County Highway Agency

About this bridge

FM 250th ST over Black Cat Creek is a concrete continuous slab carrying FM 250th ST over Black Cat Creek in Kossuth County, Iowa. It was built in 1979 and reconstructed in 1999, so it is 46 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 210 vehicles a day, roughly 20% of them trucks, projected to reach 210 by 2043. The structure is 128 ft (39.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 250th ST
CrossesBlack Cat Creek
Location096292401
RouteCounty Highway 0
StateIowa
Coordinates43.12591, -94.21573
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.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39.1 m)
Longest span49 ft (14.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2022)
Projected traffic210 by 2043
Trucks20%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 250th ST over Black Cat Creek built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 1999.

What condition is FM 250th ST over Black Cat Creek 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 250th ST over Black Cat Creek carry?

About 210 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is FM 250th ST over Black Cat Creek?

The structure is 128 ft (39.1 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.

Who owns FM 250th ST over Black Cat Creek?

It is owned by the County Highway Agency.