US Bridges

FM 280th St. over Spring Creek

FairPosted for load

Buchanan County, Iowa · 087100601 · Structure no. 000000000081500

Built
1952
73 years old, rebuilt 1999
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
75 ft
5 main spans
Daily traffic
246
2022 count
Owner
County
County Highway Agency

About this bridge

FM 280th St. over Spring Creek is a wood or timber stringer/multi-beam or girder carrying FM 280th St. over Spring Creek in Buchanan County, Iowa. It was built in 1952 and reconstructed in 1999, so it is 73 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. Its operating status is: posted for other load-capacity restriction.

It carries about 246 vehicles a day, projected to reach 246 by 2044. The structure is 75 ft (22.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM 280th St.
CrossesSpring Creek
Location087100601
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.38466, -92.06196
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.8 US tons
Inventory rating56.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 20
Structure length75 ft (22.9 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2022)
Projected traffic246 by 2044
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 280th St. over Spring Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1999.

What condition is FM 280th St. over Spring 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 January 2024.

How much traffic does FM 280th St. over Spring Creek carry?

About 246 vehicles per day (2022 count).

How long is FM 280th St. over Spring Creek?

The structure is 75 ft (22.9 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns FM 280th St. over Spring Creek?

It is owned by the County Highway Agency.