US Bridges

SH 162 over Lawyers Canyon Creek

Fair

Lewis County, Idaho · 5.1 S. Nezperce · Structure no. 000000000014920

Built
1964
61 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
470
2023 count
Owner
State
State Highway Agency

About this bridge

SH 162 over Lawyers Canyon Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 162 over Lawyers Canyon Creek in Lewis County, Idaho. It was built in 1964, so it is 61 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 470 vehicles a day, roughly 9% of them trucks, projected to reach 705 by 2042. The structure is 71 ft (21.6 m) long and 30 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

Location

Open in Google Maps
CarriesSH 162
CrossesLawyers Canyon Creek
Location5.1 S. Nezperce
RouteState Highway 162
CountyLewis County
StateIdaho
Coordinates46.1625, -116.24028
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span71 ft (21.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2023)
Projected traffic705 by 2042
Trucks9%
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 162 over Lawyers Canyon Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is SH 162 over Lawyers Canyon 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 2024.

How much traffic does SH 162 over Lawyers Canyon Creek carry?

About 470 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SH 162 over Lawyers Canyon Creek?

The structure is 71 ft (21.6 m) long with a longest span of 71 ft (21.6 m) and a deck 30 ft wide.

Who owns SH 162 over Lawyers Canyon Creek?

It is owned by the State Highway Agency.