US Bridges

Local over Crooked Creek

PoorPosted for load

Cedar County, Iowa · 079020504 · Structure no. 000000000101690

Built
1935
90 years old, rebuilt 1974
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
47 ft
2 main spans
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

Local over Crooked Creek is a steel continuous stringer/multi-beam or girder carrying Local over Crooked Creek in Cedar County, Iowa. It was built in 1935 and reconstructed in 1974, so it is 90 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 47 ft (14.3 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesCrooked Creek
Location079020504
RouteCounty Highway 0
StateIowa
Coordinates41.68083, -91.10237
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating21.4 US tons
Inventory rating14.4 US tons

Structure

MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span23 ft (7 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic15 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 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 Local over Crooked Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1974.

What condition is Local 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 Local over Crooked Creek carry?

About 15 vehicles per day (2021 count).

How long is Local over Crooked Creek?

The structure is 47 ft (14.3 m) long with a longest span of 23 ft (7 m) and a deck 18 ft wide.

Who owns Local over Crooked Creek?

It is owned by the County Highway Agency.