US Bridges

FM over Crane Creek

PoorPosted for load

Chickasaw County, Iowa · 096111903 · Structure no. 000000000112030

Built
1959
66 years old, rebuilt 1990
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
226 ft
4 main spans
Daily traffic
157
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 1959 and reconstructed in 1990, so it is 66 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. Its operating status is: posted for load restriction.

It carries about 157 vehicles a day, projected to reach 157 by 2044. The structure is 226 ft (68.9 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM
CrossesCrane Creek
Location096111903
RouteCounty Highway 0
StateIowa
Coordinates43.12133, -92.19134
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.2 US tons
Inventory rating16.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length226 ft (68.9 m)
Longest span55 ft (16.8 m)
Deck width22 ft (6.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic157 (2022)
Projected traffic157 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1959, making it 66 years old in 2025. It was reconstructed in 1990.

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 157 vehicles per day (2022 count).

How long is FM over Crane Creek?

The structure is 226 ft (68.9 m) long with a longest span of 55 ft (16.8 m) and a deck 22 ft wide.

Who owns FM over Crane Creek?

It is owned by the County Highway Agency.