US Bridges

FM over Crane Creek

Poor

Chickasaw County, Iowa · 095111401 · Structure no. 000000000111110

Built
1966
59 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
257 ft
5 main spans
Daily traffic
432
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 1966, so it is 59 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 432 vehicles a day, roughly 19% of them trucks, projected to reach 432 by 2044. The structure is 257 ft (78.3 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM
CrossesCrane Creek
Location095111401
RouteCounty Highway 0
StateIowa
Coordinates43.05223, -92.11489
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.8 US tons
Inventory rating25.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length257 ft (78.3 m)
Longest span56 ft (17.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic432 (2022)
Projected traffic432 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 over Crane Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is FM over Crane Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does FM over Crane Creek carry?

About 432 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM over Crane Creek?

The structure is 257 ft (78.3 m) long with a longest span of 56 ft (17.1 m) and a deck 30 ft wide.

Who owns FM over Crane Creek?

It is owned by the County Highway Agency.