US Bridges

FM over Crane Creek

Fair

Chickasaw County, Iowa · 097123307 · Structure no. 000000000113200

Built
1951
74 years old, rebuilt 1994
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
152 ft
3 main spans
Daily traffic
648
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Crane Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Crane Creek in Chickasaw County, Iowa. It was built in 1951 and reconstructed in 1994, so it is 74 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 648 vehicles a day, roughly 16% of them trucks, projected to reach 648 by 2044. The structure is 152 ft (46.3 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesFM
CrossesCrane Creek
Location097123307
RouteCounty Highway 0
StateIowa
Coordinates43.18409, -92.26276
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.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length152 ft (46.3 m)
Longest span58 ft (17.7 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic648 (2022)
Projected traffic648 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 over Crane Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1994.

What condition is FM over Crane 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 March 2024.

How much traffic does FM over Crane Creek carry?

About 648 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is FM over Crane Creek?

The structure is 152 ft (46.3 m) long with a longest span of 58 ft (17.7 m) and a deck 33 ft wide.

Who owns FM over Crane Creek?

It is owned by the County Highway Agency.