US Bridges

180th Ave over Plum Creek

Good

Ringgold County, Iowa · 070300902 · Structure no. 000000000298331

Built
2020
5 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete Continuous
Length
83 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

180th Ave over Plum Creek is a concrete continuous slab carrying 180th Ave over Plum Creek in Ringgold County, Iowa. It was built in 2020, so it is 5 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 83 ft (25.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries180th Ave
CrossesPlum Creek
Location070300902
RouteCounty Highway 0
CountyRinggold County
StateIowa
Coordinates40.88243, -94.31953
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 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 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 180th Ave over Plum Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is 180th Ave over Plum Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does 180th Ave over Plum Creek carry?

About 15 vehicles per day (2022 count).

How long is 180th Ave over Plum Creek?

The structure is 83 ft (25.3 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns 180th Ave over Plum Creek?

It is owned by the County Highway Agency.