US Bridges

Curtis Cutoff Road over Curtis Creek

Good

Valley County, Idaho · 2 MI West of Warm Lake · Structure no. 040204000001079

Built
1963
62 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
30 ft
1 main span
Daily traffic
5
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

Curtis Cutoff Road over Curtis Creek is a wood or timber stringer/multi-beam or girder carrying Curtis Cutoff Road over Curtis Creek in Valley County, Idaho. It was built in 1963, so it is 62 years old, older 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 5 vehicles a day, projected to reach 7 by 2045. The structure is 30 ft (9.1 m) long and 15 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesCurtis Cutoff Road
CrossesCurtis Creek
Location2 MI West of Warm Lake
RouteFederal Lands Road 419
StateIdaho
Coordinates44.63618, -115.71694
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating27.1 US tons
Inventory rating21.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (1993)
Projected traffic7 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 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 Curtis Cutoff Road over Curtis Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Curtis Cutoff Road over Curtis 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 September 2023.

How much traffic does Curtis Cutoff Road over Curtis Creek carry?

About 5 vehicles per day (1993 count).

How long is Curtis Cutoff Road over Curtis Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 15 ft wide.

Who owns Curtis Cutoff Road over Curtis Creek?

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