US Bridges

FM over Crooked Creek

Poor

Cedar County, Iowa · 079020803 · Structure no. 000000000101710

Built
1923
102 years old
Condition
Poor
inspected May 2023
Type
Culvert
Concrete
Length
40 ft
1 main span
Daily traffic
230
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Crooked Creek is a concrete culvert carrying FM over Crooked Creek in Cedar County, Iowa. It was built in 1923, so it is 102 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 230 vehicles a day, projected to reach 230 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM
CrossesCrooked Creek
Location079020803
RouteCounty Highway 0
CountyCedar County
StateIowa
Coordinates41.67001, -91.1
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2021)
Projected traffic230 by 2043
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 statusPossibly eligible for the National Register; requires further investigation
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 Crooked Creek built?

It was built in 1923, making it 102 years old in 2025.

What condition is FM over Crooked 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 May 2023.

How much traffic does FM over Crooked Creek carry?

About 230 vehicles per day (2021 count).

How long is FM over Crooked Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m).

Who owns FM over Crooked Creek?

It is owned by the County Highway Agency.