US Bridges

72 Bench RD over Warm Springs Creek 078

FairPosted for load

Fergus County, Montana · 5M N Danvers · Structure no. L14008003+03001

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

72 Bench RD over Warm Springs Creek 078 is a steel stringer/multi-beam or girder carrying 72 Bench RD over Warm Springs Creek 078 in Fergus County, Montana. It was built in 1980, so it is 45 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 50 ft (15.2 m) long and 20 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Carries72 Bench RD
CrossesWarm Springs Creek 078
Location5M N Danvers
RouteCounty Highway 14008
StateMontana
Coordinates47.30539, -109.69461
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating11 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 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 closed11.2 mi (18 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$74,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 72 Bench RD over Warm Springs Creek 078 built?

It was built in 1980, making it 45 years old in 2025.

What condition is 72 Bench RD over Warm Springs Creek 078 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 May 2023.

How much traffic does 72 Bench RD over Warm Springs Creek 078 carry?

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

How long is 72 Bench RD over Warm Springs Creek 078?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 20 ft wide.

Who owns 72 Bench RD over Warm Springs Creek 078?

It is owned by the County Highway Agency.