US Bridges

Local (lwc) over Br Prairie Ck

Fair

Benton County, Iowa · 083111704 · Structure no. 000000000071231

Built
1991
34 years old
Condition
Fair
inspected April 2023
Type
Slab
Steel
Length
50 ft
1 main span
Daily traffic
5
2023 count
Owner
County
County Highway Agency

About this bridge

Local (lwc) over Br Prairie Ck is a steel slab carrying Local (lwc) over Br Prairie Ck in Benton County, Iowa. It was built in 1991, so it is 34 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 5 vehicles a day, projected to reach 5 by 2043. The structure is 50 ft (15.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal (lwc)
CrossesBr Prairie Ck
Location083111704
RouteCounty Highway 0
CountyBenton County
StateIowa
Coordinates42.00016, -92.16277
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.9 US tons
Inventory rating47.6 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2023)
Projected traffic5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local (lwc) over Br Prairie Ck built?

It was built in 1991, making it 34 years old in 2025.

What condition is Local (lwc) over Br Prairie Ck 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 Br Prairie Ck carry?

About 5 vehicles per day (2023 count).

How long is Local (lwc) over Br Prairie Ck?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 30 ft wide.

Who owns Local (lwc) over Br Prairie Ck?

It is owned by the County Highway Agency.