US Bridges

FM 145th ST over Little Wapsipinicon

FairPosted for load

Buchanan County, Iowa · 090102805 · Structure no. 000000000084280

Built
1965
60 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
202 ft
3 main spans
Daily traffic
137
2022 count
Owner
County
County Highway Agency

About this bridge

FM 145th ST over Little Wapsipinicon is a steel continuous stringer/multi-beam or girder carrying FM 145th ST over Little Wapsipinicon in Buchanan County, Iowa. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 137 vehicles a day, projected to reach 137 by 2044. The structure is 202 ft (61.6 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 145th ST
CrossesLittle Wapsipinicon
Location090102805
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.57634, -92.0346
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length202 ft (61.6 m)
Longest span78 ft (23.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137 (2022)
Projected traffic137 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 145th ST over Little Wapsipinicon built?

It was built in 1965, making it 60 years old in 2025.

What condition is FM 145th ST over Little Wapsipinicon 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 145th ST over Little Wapsipinicon carry?

About 137 vehicles per day (2022 count).

How long is FM 145th ST over Little Wapsipinicon?

The structure is 202 ft (61.6 m) long with a longest span of 78 ft (23.8 m) and a deck 26 ft wide.

Who owns FM 145th ST over Little Wapsipinicon?

It is owned by the County Highway Agency.