US Bridges

Dry Creek Road over Little Willow Creek

Fair

Payette County, Idaho · 9.7N 8.5E New Plymouth · Structure no. 000000000028340

Built
1974
51 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Dry Creek Road over Little Willow Creek is a prestressed concrete tee beam carrying Dry Creek Road over Little Willow Creek in Payette County, Idaho. It was built in 1974, so it is 51 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 45 ft (13.7 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesDry Creek Road
CrossesLittle Willow Creek
Location9.7N 8.5E New Plymouth
RouteCounty Highway 0
StateIdaho
Coordinates44.11317, -116.64919
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.7 US tons
Inventory rating29.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dry Creek Road over Little Willow Creek built?

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

What condition is Dry Creek Road over Little 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 June 2024.

How much traffic does Dry Creek Road over Little Willow Creek carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Dry Creek Road over Little Willow Creek?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns Dry Creek Road over Little Willow Creek?

It is owned by the County Highway Agency.