US Bridges

SH 4 over Canyon Creek;frisco Br

Fair

Shoshone County, Idaho · 2.1 S. Burke · Structure no. 000000000010156

Built
1999
26 years old
Condition
Fair
inspected September 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
190
2023 count
Owner
State
State Highway Agency

About this bridge

SH 4 over Canyon Creek;frisco Br is a concrete frame carrying SH 4 over Canyon Creek;frisco Br in Shoshone County, Idaho. It was built in 1999, so it is 26 years old, younger 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 190 vehicles a day, roughly 27% of them trucks, projected to reach 285 by 2042. The structure is 26 ft (7.9 m) long and 36 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSH 4
CrossesCanyon Creek;frisco Br
Location2.1 S. Burke
RouteState Highway 4
CountyShoshone County
StateIdaho
Coordinates47.51253, -115.85633
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width36 ft (11 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2023)
Projected traffic285 by 2042
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 4 over Canyon Creek;frisco Br built?

It was built in 1999, making it 26 years old in 2025.

What condition is SH 4 over Canyon Creek;frisco Br 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 September 2024.

How much traffic does SH 4 over Canyon Creek;frisco Br carry?

About 190 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is SH 4 over Canyon Creek;frisco Br?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 36 ft wide.

Who owns SH 4 over Canyon Creek;frisco Br?

It is owned by the State Highway Agency.