US Bridges

SH 162 over Seven Mile Creek

Fair

Idaho County, Idaho · 2.9 S. Kamiah · Structure no. 000000000014925

Built
1949
76 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete
Length
31 ft
1 main span
Daily traffic
970
2023 count
Owner
State
State Highway Agency

About this bridge

SH 162 over Seven Mile Creek is a concrete frame carrying SH 162 over Seven Mile Creek in Idaho County, Idaho. It was built in 1949, so it is 76 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 5 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 970 vehicles a day, roughly 9% of them trucks, projected to reach 1,455 by 2042. The structure is 31 ft (9.4 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSH 162
CrossesSeven Mile Creek
Location2.9 S. Kamiah
RouteState Highway 162
CountyIdaho County
StateIdaho
Coordinates46.19397, -116.06989
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic970 (2023)
Projected traffic1,455 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$655,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 162 over Seven Mile Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is SH 162 over Seven Mile 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 July 2024.

How much traffic does SH 162 over Seven Mile Creek carry?

About 970 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SH 162 over Seven Mile Creek?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 36 ft wide.

Who owns SH 162 over Seven Mile Creek?

It is owned by the State Highway Agency.