US Bridges

Local over Walnut Creek

FairPosted for load

Crawford County, Iowa · 083381704 · Structure no. 000000000127650

Built
1956
69 years old, rebuilt 2005
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
3 main spans
Daily traffic
11
2021 count
Owner
County
County Highway Agency

About this bridge

Local over Walnut Creek is a steel stringer/multi-beam or girder carrying Local over Walnut Creek in Crawford County, Iowa. It was built in 1956 and reconstructed in 2005, so it is 69 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. Its operating status is: posted for load restriction.

It carries about 11 vehicles a day, roughly 36% of them trucks, projected to reach 11 by 2043. The structure is 105 ft (32 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal
CrossesWalnut Creek
Location083381704
RouteCounty Highway 0
CountyCrawford County
StateIowa
Coordinates42.00019, -95.29549
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating32.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length105 ft (32 m)
Longest span47 ft (14.3 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2021)
Projected traffic11 by 2043
Trucks36%
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 Walnut Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2005.

What condition is Local over Walnut 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 April 2023.

How much traffic does Local over Walnut Creek carry?

About 11 vehicles per day (2021 count), of which roughly 36% are trucks.

How long is Local over Walnut Creek?

The structure is 105 ft (32 m) long with a longest span of 47 ft (14.3 m) and a deck 20 ft wide.

Who owns Local over Walnut Creek?

It is owned by the County Highway Agency.