US Bridges

US 95 over John Day Creek

Fair

Idaho County, Idaho · 12.4 N. Riggins · Structure no. 000000000018340

Built
1960
65 years old
Condition
Fair
inspected February 2022
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 95 over John Day Creek is a concrete tee beam carrying US 95 over John Day Creek in Idaho County, Idaho. It was built in 1960, so it is 65 years old, older 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 2,200 vehicles a day, roughly 63% of them trucks, projected to reach 3,300 by 2042. The structure is 32 ft (9.8 m) long and 36 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUS 95
CrossesJohn Day Creek
Location12.4 N. Riggins
RouteU.S. Route 95
CountyIdaho County
StateIdaho
Coordinates45.58511, -116.2945
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic3,300 by 2042
Trucks63%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$579,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 95 over John Day Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is US 95 over John Day Creek 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 February 2022.

How much traffic does US 95 over John Day Creek carry?

About 2,200 vehicles per day (2023 count), of which roughly 63% are trucks.

How long is US 95 over John Day Creek?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 36 ft wide.

Who owns US 95 over John Day Creek?

It is owned by the State Highway Agency.