US Bridges

Stc 3894;CUPRUM RD over Bear Creek

Fair

Adams County, Idaho · 2.8N. 19.3W. New Meadows · Structure no. 000000000020065

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
1 main span
Daily traffic
80
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 3894;CUPRUM RD over Bear Creek is a wood or timber stringer/multi-beam or girder carrying Stc 3894;CUPRUM RD over Bear Creek in Adams County, Idaho. It was built in 1969, so it is 56 years old, older 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 80 vehicles a day, roughly 14% of them trucks, projected to reach 120 by 2042. The structure is 27 ft (8.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesStc 3894;CUPRUM RD
CrossesBear Creek
Location2.8N. 19.3W. New Meadows
RouteCounty Highway 3894
StateIdaho
Coordinates45.01053, -116.67772
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.
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating43 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic120 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Stc 3894;CUPRUM RD over Bear Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Stc 3894;CUPRUM RD over Bear 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 September 2024.

How much traffic does Stc 3894;CUPRUM RD over Bear Creek carry?

About 80 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Stc 3894;CUPRUM RD over Bear Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns Stc 3894;CUPRUM RD over Bear Creek?

It is owned by the County Highway Agency.