US Bridges

Pioneer Ave over Willow Creek

Good

Plymouth County, Iowa · 093441502 · Structure no. 000000000276401

Built
1990
35 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
15
2021 count
Owner
County
County Highway Agency

About this bridge

Pioneer Ave over Willow Creek is a concrete continuous slab carrying Pioneer Ave over Willow Creek in Plymouth County, Iowa. It was built in 1990, so it is 35 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 2044. The structure is 125 ft (38.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPioneer Ave
CrossesWillow Creek
Location093441502
RouteCounty Highway 0
StateIowa
Coordinates42.87694, -96.03623
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2021)
Projected traffic15 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pioneer Ave over Willow Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Pioneer Ave over Willow 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 May 2023.

How much traffic does Pioneer Ave over Willow Creek carry?

About 15 vehicles per day (2021 count).

How long is Pioneer Ave over Willow Creek?

The structure is 125 ft (38.1 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Pioneer Ave over Willow Creek?

It is owned by the County Highway Agency.