US Bridges

Houtz Canyon RD over S.Fk. Rock Creek

Fair

Power County, Idaho · 0.6 W. Rockland · Structure no. 000000000023520

Built
1980
45 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Houtz Canyon RD over S.Fk. Rock Creek is a prestressed concrete tee beam carrying Houtz Canyon RD over S.Fk. Rock Creek in Power County, Idaho. It was built in 1980, so it is 45 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2039. The structure is 49 ft (14.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesHoutz Canyon RD
CrossesS.Fk. Rock Creek
Location0.6 W. Rockland
RouteCounty Highway 0
CountyPower County
StateIdaho
Coordinates42.57403, -112.88814
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span47 ft (14.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic150 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Houtz Canyon RD over S.Fk. Rock Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Houtz Canyon RD over S.Fk. Rock 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 March 2023.

How much traffic does Houtz Canyon RD over S.Fk. Rock Creek carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Houtz Canyon RD over S.Fk. Rock Creek?

The structure is 49 ft (14.9 m) long with a longest span of 47 ft (14.3 m) and a deck 30 ft wide.

Who owns Houtz Canyon RD over S.Fk. Rock Creek?

It is owned by the County Highway Agency.