US Bridges

Local over Willow CR

Fair

O'Brien County, Iowa · 094412501 · Structure no. 000000000259221

Built
1978
47 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Willow CR is a concrete continuous slab carrying Local over Willow CR in O'Brien County, Iowa. It was built in 1978, so it is 47 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 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 78 ft (23.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesWillow CR
Location094412501
RouteCounty Highway 0
CountyO'Brien County
StateIowa
Coordinates42.93948, -95.6327
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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length78 ft (23.8 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$60,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Willow CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is Local over Willow CR 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 June 2023.

How much traffic does Local over Willow CR carry?

About 11 vehicles per day (2022 count).

How long is Local over Willow CR?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns Local over Willow CR?

It is owned by the County Highway Agency.