US Bridges

STC8317;LANSING RD over Willow Creek

Fair

Canyon County, Idaho · 2.8 N. 2.4 E. Middleton · Structure no. 000000000027330

Built
1989
36 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete
Length
27 ft
1 main span
Daily traffic
2,400
2023 count
Owner
Local
Other Local Agency

About this bridge

STC8317;LANSING RD over Willow Creek is a concrete frame carrying STC8317;LANSING RD over Willow Creek in Canyon County, Idaho. It was built in 1989, so it is 36 years old, younger 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 2,400 vehicles a day, roughly 5% of them trucks, projected to reach 3,600 by 2042. The structure is 27 ft (8.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSTC8317;LANSING RD
CrossesWillow Creek
Location2.8 N. 2.4 E. Middleton
RouteCounty Highway 3719
CountyCanyon County
StateIdaho
Coordinates43.74636, -116.57267
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic3,600 by 2042
Trucks5%
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

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$500,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC8317;LANSING RD over Willow Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is STC8317;LANSING RD 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 2023.

How much traffic does STC8317;LANSING RD over Willow Creek carry?

About 2,400 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is STC8317;LANSING RD over Willow Creek?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 32 ft wide.

Who owns STC8317;LANSING RD over Willow Creek?

It is owned by the Other Local Agency.