US Bridges

Skyline Loop RD over Clear Creek

FairPosted for load

Idaho County, Idaho · 4.1 S 4.8 E Kooskia · Structure no. 000000000029188

Built
1984
41 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
60
2023 count
Owner
Unknown
Unknown

About this bridge

Skyline Loop RD over Clear Creek is a steel stringer/multi-beam or girder carrying Skyline Loop RD over Clear Creek in Idaho County, Idaho. It was built in 1984, so it is 41 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, roughly 5% of them trucks, projected to reach 90 by 2039. The structure is 50 ft (15.2 m) long and 22 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesSkyline Loop RD
CrossesClear Creek
Location4.1 S 4.8 E Kooskia
RouteCounty Highway 0
StateIdaho
Coordinates46.08261, -115.89758
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span47 ft (14.3 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byUnknown
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$520,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Skyline Loop RD over Clear Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Skyline Loop RD over Clear 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 June 2024.

How much traffic does Skyline Loop RD over Clear Creek carry?

About 60 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Skyline Loop RD over Clear Creek?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.3 m) and a deck 22 ft wide.

Who owns Skyline Loop RD over Clear Creek?

It is owned by the Unknown.