US Bridges

Copper Creek Road over Copper Creek

Good

Lewis and Clark County, Montana · No Data Entered · Structure no. 011204000003067

Built
2005
20 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
10
2005 count
Owner
Federal
U.S. Forest Service

About this bridge

Copper Creek Road over Copper Creek is a steel stringer/multi-beam or girder carrying Copper Creek Road over Copper Creek in Lewis and Clark County, Montana. It was built in 2005, so it is 20 years old, younger than the Montana average of 47 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 33 ft (10.1 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesCopper Creek Road
CrossesCopper Creek
LocationNo Data Entered
RouteFederal Lands Road 330
StateMontana
Coordinates47.07367, -112.72574
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span33 ft (10.1 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2005)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 Copper Creek Road over Copper Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Copper Creek Road over Copper 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 August 2023.

How much traffic does Copper Creek Road over Copper Creek carry?

About 10 vehicles per day (2005 count).

How long is Copper Creek Road over Copper Creek?

The structure is 33 ft (10.1 m) long with a longest span of 33 ft (10.1 m) and a deck 16 ft wide.

Who owns Copper Creek Road over Copper Creek?

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