US Bridges

Bridger Fromberg R over Bluewater Creek 001

Fair

Carbon County, Montana · 2M SE Fromberg · Structure no. L05302008+06001

Built
1913
112 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
30 ft
1 main span
Daily traffic
175
2023 count
Owner
County
County Highway Agency

About this bridge

Bridger Fromberg R over Bluewater Creek 001 is a concrete tee beam carrying Bridger Fromberg R over Bluewater Creek 001 in Carbon County, Montana. It was built in 1913, so it is 112 years old, older 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.

It carries about 175 vehicles a day, roughly 8% of them trucks, projected to reach 185 by 2043. The structure is 30 ft (9.1 m) long and 17 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesBridger Fromberg R
CrossesBluewater Creek 001
Location2M SE Fromberg
RouteCounty Highway 5303
CountyCarbon County
StateMontana
Coordinates45.36941, -108.88221
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2023)
Projected traffic185 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$47,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridger Fromberg R over Bluewater Creek 001 built?

It was built in 1913, making it 112 years old in 2025.

What condition is Bridger Fromberg R over Bluewater Creek 001 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 November 2023.

How much traffic does Bridger Fromberg R over Bluewater Creek 001 carry?

About 175 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Bridger Fromberg R over Bluewater Creek 001?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 17 ft wide.

Who owns Bridger Fromberg R over Bluewater Creek 001?

It is owned by the County Highway Agency.