US Bridges

4th Ave.E over Willow Creek

Good

Plymouth County, Iowa · 000000000 · Structure no. 000000000274601

Built
1993
32 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
851
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

4th Ave.E over Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying 4th Ave.E over Willow Creek in Plymouth County, Iowa. It was built in 1993, so it is 32 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 851 vehicles a day, projected to reach 851 by 2043. The structure is 189 ft (57.6 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries4th Ave.E
CrossesWillow Creek
Location000000000
RouteCity Street 0
CountyPlymouth County
StateIowa
Coordinates42.80382, -96.15851
Functional classUrban 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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length189 ft (57.6 m)
Longest span69 ft (21 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic851 (2022)
Projected traffic851 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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 4th Ave.E over Willow Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is 4th Ave.E 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 September 2023.

How much traffic does 4th Ave.E over Willow Creek carry?

About 851 vehicles per day (2022 count).

How long is 4th Ave.E over Willow Creek?

The structure is 189 ft (57.6 m) long with a longest span of 69 ft (21 m) and a deck 35 ft wide.

Who owns 4th Ave.E over Willow Creek?

It is owned by the City or Municipal Highway Agency.