US Bridges

Old HWY 95 over Little Salmon River

PoorPosted for load

Adams County, Idaho · 0.3 W. New Meadows · Structure no. 000000000026445

Built
1923
102 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
63 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Old HWY 95 over Little Salmon River is a steel truss - thru carrying Old HWY 95 over Little Salmon River in Adams County, Idaho. It was built in 1923, so it is 102 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 5% of them trucks, projected to reach 30 by 2039. The structure is 63 ft (19.2 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld HWY 95
CrossesLittle Salmon River
Location0.3 W. New Meadows
RouteCounty Highway 0
StateIdaho
Coordinates44.97342, -116.29436
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic30 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$603,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 95 over Little Salmon River built?

It was built in 1923, making it 102 years old in 2025.

What condition is Old HWY 95 over Little Salmon River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Old HWY 95 over Little Salmon River carry?

About 20 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Old HWY 95 over Little Salmon River?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 20 ft wide.

Who owns Old HWY 95 over Little Salmon River?

It is owned by the County Highway Agency.