US Bridges

Local (lwc) over Prairie Creek

Fair

Benton County, Iowa · 082091404 · Structure no. 000000000070081

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Slab
Steel
Length
95 ft
2 main spans
Daily traffic
15
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 1987, so it is 38 years old, younger 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 6 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 95 ft (29 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLocal (lwc)
CrossesPrairie Creek
Location082091404
RouteCounty Highway 0
CountyBenton County
StateIowa
Coordinates41.90827, -91.8713
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.1 US tons
Inventory rating36.2 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length95 ft (29 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 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 closed8.1 mi (13 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local (lwc) over Prairie Creek built?

It was built in 1987, making it 38 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 March 2023.

How much traffic does Local (lwc) over Prairie Creek carry?

About 15 vehicles per day (2022 count).

How long is Local (lwc) over Prairie Creek?

The structure is 95 ft (29 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Local (lwc) over Prairie Creek?

It is owned by the County Highway Agency.