US Bridges

Bridge LN over Warm Springs Creek 005

FairPosted for load

Deer Lodge County, Montana · 1M W Anaconda · Structure no. M12002000+00501

Built
2001
24 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Bridge LN over Warm Springs Creek 005 is a steel stringer/multi-beam or girder carrying Bridge LN over Warm Springs Creek 005 in Deer Lodge County, Montana. It was built in 2001, so it is 24 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 65 ft (19.7 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBridge LN
CrossesWarm Springs Creek 005
Location1M W Anaconda
RouteCity Street 12002
StateMontana
Coordinates46.14188, -112.99301
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating5 US tons
Inventory rating5 US tons

Structure

MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length65 ft (19.7 m)
Longest span49 ft (14.9 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$102,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridge LN over Warm Springs Creek 005 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Bridge LN over Warm Springs Creek 005 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 December 2024.

How much traffic does Bridge LN over Warm Springs Creek 005 carry?

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

How long is Bridge LN over Warm Springs Creek 005?

The structure is 65 ft (19.7 m) long with a longest span of 49 ft (14.9 m) and a deck 12 ft wide.

Who owns Bridge LN over Warm Springs Creek 005?

It is owned by the County Highway Agency.