US Bridges

Swale Road over Renwyck Creek

Good

Gem County, Idaho · 3 MI N of Sagehen Rsrvoir · Structure no. 040206000003069

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
30 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Swale Road over Renwyck Creek is a concrete box beam or girders - multiple carrying Swale Road over Renwyck Creek in Gem County, Idaho. It was built in 2006, so it is 19 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 30 ft (9 m) long and 16 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesSwale Road
CrossesRenwyck Creek
Location3 MI N of Sagehen Rsrvoir
RouteFederal Lands Road 609
StateIdaho
Coordinates44.36706, -116.19599
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.2 US tons
Inventory rating79.7 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length30 ft (9 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Swale Road over Renwyck Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Swale Road over Renwyck Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Swale Road over Renwyck Creek carry?

About 50 vehicles per day (latest count).

How long is Swale Road over Renwyck Creek?

The structure is 30 ft (9 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns Swale Road over Renwyck Creek?

It is owned by the U.S. Forest Service.