US Bridges

SH 3 over M. Fk. Potlatch Creek

Good

Latah County, Idaho · At Juliaetta Ncl · Structure no. 000000000010061

Built
2021
4 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

SH 3 over M. Fk. Potlatch Creek is a prestressed concrete tee beam carrying SH 3 over M. Fk. Potlatch Creek in Latah County, Idaho. It was built in 2021, so it is 4 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 33% of them trucks, projected to reach 3,450 by 2042. The structure is 106 ft (32.3 m) long and 41 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

Location

Open in Google Maps
CarriesSH 3
CrossesM. Fk. Potlatch Creek
LocationAt Juliaetta Ncl
RouteState Highway 3
CountyLatah County
StateIdaho
Coordinates46.58294, -116.70267
Functional classRural Minor Arterial

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
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 rating77.5 US tons
Inventory rating54.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length106 ft (32.3 m)
Longest span104 ft (31.7 m)
Deck width41 ft (12.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,450 by 2042
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 3 over M. Fk. Potlatch Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is SH 3 over M. Fk. Potlatch Creek 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 July 2023.

How much traffic does SH 3 over M. Fk. Potlatch Creek carry?

About 2,300 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is SH 3 over M. Fk. Potlatch Creek?

The structure is 106 ft (32.3 m) long with a longest span of 104 ft (31.7 m) and a deck 41 ft wide.

Who owns SH 3 over M. Fk. Potlatch Creek?

It is owned by the State Highway Agency.