US Bridges

160th Ave. over Walnut Creek

Fair

Jones County, Iowa · 083032702 · Structure no. 000000000206571

Built
1974
51 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
176 ft
4 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

160th Ave. over Walnut Creek is a concrete continuous slab carrying 160th Ave. over Walnut Creek in Jones County, Iowa. It was built in 1974, so it is 51 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 49 vehicles a day, projected to reach 49 by 2043. The structure is 176 ft (53.6 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries160th Ave.
CrossesWalnut Creek
Location083032702
RouteCounty Highway 0
CountyJones County
StateIowa
Coordinates41.96239, -91.19079
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length176 ft (53.6 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2022)
Projected traffic49 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 160th Ave. over Walnut Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is 160th Ave. over Walnut 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 February 2023.

How much traffic does 160th Ave. over Walnut Creek carry?

About 49 vehicles per day (2022 count).

How long is 160th Ave. over Walnut Creek?

The structure is 176 ft (53.6 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns 160th Ave. over Walnut Creek?

It is owned by the County Highway Agency.