US Bridges

Local (lwc) over Prairie Creek

Fair

Benton County, Iowa · 082093002 · Structure no. 000000000070141

Built
1979
46 years old
Condition
Fair
inspected April 2023
Type
Slab
Steel
Length
73 ft
2 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Local (lwc) over Prairie Creek is a steel slab carrying Local (lwc) over Prairie Creek in Benton County, Iowa. It was built in 1979, so it is 46 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.

It carries about 5 vehicles a day, projected to reach 5 by 2043. The structure is 73 ft (22.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLocal (lwc)
CrossesPrairie Creek
Location082093002
RouteCounty Highway 0
CountyBenton County
StateIowa
Coordinates41.88934, -91.94855
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.5 US tons
Inventory rating45.6 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length73 ft (22.3 m)
Longest span36 ft (11 m)
Deck width28 ft (8.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 (lwc) over Prairie Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Local (lwc) over Prairie 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 (lwc) over Prairie Creek carry?

About 5 vehicles per day (2022 count).

How long is Local (lwc) over Prairie Creek?

The structure is 73 ft (22.3 m) long with a longest span of 36 ft (11 m) and a deck 28 ft wide.

Who owns Local (lwc) over Prairie Creek?

It is owned by the County Highway Agency.