US Bridges

Stumptown RD over Warm Springs Creek 006

Good

Deer Lodge County, Montana · 4M NW Anaconda · Structure no. L12005000+03001

Built
2015
10 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
142
2023 count
Owner
County
County Highway Agency

About this bridge

Stumptown RD over Warm Springs Creek 006 is a prestressed concrete stringer/multi-beam or girder carrying Stumptown RD over Warm Springs Creek 006 in Deer Lodge County, Montana. It was built in 2015, so it is 10 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 142 vehicles a day, projected to reach 151 by 2043. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesStumptown RD
CrossesWarm Springs Creek 006
Location4M NW Anaconda
RouteCounty Highway 12005
CountyDeer Lodge County
StateMontana
Coordinates46.15746, -113.04985
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
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 alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic142 (2023)
Projected traffic151 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$168,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Stumptown RD over Warm Springs Creek 006 built?

It was built in 2015, making it 10 years old in 2025.

What condition is Stumptown RD over Warm Springs Creek 006 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 December 2023.

How much traffic does Stumptown RD over Warm Springs Creek 006 carry?

About 142 vehicles per day (2023 count).

How long is Stumptown RD over Warm Springs Creek 006?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Stumptown RD over Warm Springs Creek 006?

It is owned by the County Highway Agency.