US Bridges

Garden Gulch Road over Lapwai Cr;garden Gulch

Good

Nez Perce County, Idaho · 0.7 S. 0.1 E. Lapwai · Structure no. 000000000029831

Built
1995
30 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
230
2023 count
Owner
County
County Highway Agency

About this bridge

Garden Gulch Road over Lapwai Cr;garden Gulch is a prestressed concrete tee beam carrying Garden Gulch Road over Lapwai Cr;garden Gulch in Nez Perce County, Idaho. It was built in 1995, so it is 30 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 230 vehicles a day, roughly 15% of them trucks, projected to reach 345 by 2039. The structure is 59 ft (18 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesGarden Gulch Road
CrossesLapwai Cr;garden Gulch
Location0.7 S. 0.1 E. Lapwai
RouteCounty Highway 0
CountyNez Perce County
StateIdaho
Coordinates46.39392, -116.79839
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2023)
Projected traffic345 by 2039
Trucks15%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$617,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Garden Gulch Road over Lapwai Cr;garden Gulch built?

It was built in 1995, making it 30 years old in 2025.

What condition is Garden Gulch Road over Lapwai Cr;garden Gulch 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 2024.

How much traffic does Garden Gulch Road over Lapwai Cr;garden Gulch carry?

About 230 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Garden Gulch Road over Lapwai Cr;garden Gulch?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 25 ft wide.

Who owns Garden Gulch Road over Lapwai Cr;garden Gulch?

It is owned by the County Highway Agency.