US Bridges

Park Road over Potlatch River

Good

Latah County, Idaho · 1.9 S. 0.7 E. Helmer · Structure no. 000000000029566

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
70
2023 count
Owner
Local
Other Local Agency

About this bridge

Park Road over Potlatch River is a steel stringer/multi-beam or girder carrying Park Road over Potlatch River in Latah County, Idaho. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, roughly 17% of them trucks, projected to reach 105 by 2042. The structure is 92 ft (28 m) long and 29 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesPark Road
CrossesPotlatch River
Location1.9 S. 0.7 E. Helmer
RouteCounty Highway 0
StateIdaho
Coordinates46.77347, -116.45703
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length92 ft (28 m)
Longest span88 ft (26.8 m)
Deck width29 ft (8.9 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Park Road over Potlatch River built?

It was built in 2018, making it 7 years old in 2025.

What condition is Park Road over Potlatch River 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 May 2024.

How much traffic does Park Road over Potlatch River carry?

About 70 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Park Road over Potlatch River?

The structure is 92 ft (28 m) long with a longest span of 88 ft (26.8 m) and a deck 29 ft wide.

Who owns Park Road over Potlatch River?

It is owned by the Other Local Agency.