US Bridges

Lyle Gulch over Lapwai Cr;jacques Spur B

Fair

Nez Perce County, Idaho · 0.3 S. 2.3 W. Culdesac · Structure no. 000000000029855

Built
1987
38 years old
Condition
Fair
inspected September 2021
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Lyle Gulch over Lapwai Cr;jacques Spur B is a prestressed concrete tee beam carrying Lyle Gulch over Lapwai Cr;jacques Spur B in Nez Perce County, Idaho. It was built in 1987, so it is 38 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 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 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 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesLyle Gulch
CrossesLapwai Cr;jacques Spur B
Location0.3 S. 2.3 W. Culdesac
RouteCounty Highway 0
CountyNez Perce County
StateIdaho
Coordinates46.37142, -116.72531
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 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 closed11.8 mi (19 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 Lyle Gulch over Lapwai Cr;jacques Spur B built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lyle Gulch over Lapwai Cr;jacques Spur B 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 September 2021.

How much traffic does Lyle Gulch over Lapwai Cr;jacques Spur B carry?

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

How long is Lyle Gulch over Lapwai Cr;jacques Spur B?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 24 ft wide.

Who owns Lyle Gulch over Lapwai Cr;jacques Spur B?

It is owned by the County Highway Agency.