US Bridges

Second Street over Cottonwood Creek

Good

Powell County, Montana · Deer Lodge - Second Stree · Structure no. 000000202004954

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Second Street over Cottonwood Creek is a prestressed concrete tee beam carrying Second Street over Cottonwood Creek in Powell County, Montana. It was built in 2012, so it is 13 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 38 ft (11.7 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSecond Street
CrossesCottonwood Creek
LocationDeer Lodge - Second Stree
RouteCity Street 39124
StateMontana
Coordinates46.40244, -112.73658
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 protection7 GoodSome minor problems.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length38 ft (11.7 m)
Longest span36 ft (11 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Second Street over Cottonwood Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Second Street over Cottonwood 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 June 2024.

How much traffic does Second Street over Cottonwood Creek carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Second Street over Cottonwood Creek?

The structure is 38 ft (11.7 m) long with a longest span of 36 ft (11 m) and a deck 26 ft wide.

Who owns Second Street over Cottonwood Creek?

It is owned by the County Highway Agency.