US Bridges

Local over Walnut Creek

PoorPosted for load

Ringgold County, Iowa · 069303506 · Structure no. 000000000297420

Built
1956
69 years old, rebuilt 1988
Condition
Poor
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
2 main spans
Daily traffic
15
2022 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 Ringgold County, Iowa. It was built in 1956 and reconstructed in 1988, 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 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 65 ft (19.8 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLocal
CrossesWalnut Creek
Location069303506
RouteCounty Highway 0
StateIowa
Coordinates40.72986, -94.26737
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 rating14.1 US tons
Inventory rating8.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2 (+1 approach)
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span49 ft (14.9 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 1988.

What condition is Local over Walnut 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 December 2022.

How much traffic does Local over Walnut Creek carry?

About 15 vehicles per day (2022 count).

How long is Local over Walnut Creek?

The structure is 65 ft (19.8 m) long with a longest span of 49 ft (14.9 m) and a deck 20 ft wide.

Who owns Local over Walnut Creek?

It is owned by the County Highway Agency.