US Bridges

F20L Easton Trail over Willow Creek

Fair

Harrison County, Iowa · 080420607 · Structure no. 000000000178591

Built
2020
5 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
3 main spans
Daily traffic
437
2022 count
Owner
County
County Highway Agency

About this bridge

F20L Easton Trail over Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying F20L Easton Trail over Willow Creek in Harrison 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 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 437 vehicles a day, projected to reach 437 by 2044. The structure is 217 ft (66.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesF20L Easton Trail
CrossesWillow Creek
Location080420607
RouteCounty Highway 0
CountyHarrison County
StateIowa
Coordinates41.76883, -95.77741
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length217 ft (66.1 m)
Longest span77 ft (23.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic437 (2022)
Projected traffic437 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was F20L Easton Trail over Willow Creek built?

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

What condition is F20L Easton Trail over Willow 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 November 2024.

How much traffic does F20L Easton Trail over Willow Creek carry?

About 437 vehicles per day (2022 count).

How long is F20L Easton Trail over Willow Creek?

The structure is 217 ft (66.1 m) long with a longest span of 77 ft (23.6 m) and a deck 33 ft wide.

Who owns F20L Easton Trail over Willow Creek?

It is owned by the County Highway Agency.