US Bridges

Joliet Fromberg RD over Elbow Creek 035

Fair

Carbon County, Montana · 2M SE Joliet · Structure no. L05104001+08001

Built
1979
46 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
111
2023 count
Owner
County
County Highway Agency

About this bridge

Joliet Fromberg RD over Elbow Creek 035 is a prestressed concrete tee beam carrying Joliet Fromberg RD over Elbow Creek 035 in Carbon County, Montana. It was built in 1979, so it is 46 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 6 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 111 vehicles a day, roughly 3% of them trucks, projected to reach 117 by 2043. The structure is 62 ft (18.9 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesJoliet Fromberg RD
CrossesElbow Creek 035
Location2M SE Joliet
RouteCounty Highway 5103
CountyCarbon County
StateMontana
Coordinates45.45538, -108.9572
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating14.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2023)
Projected traffic117 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Joliet Fromberg RD over Elbow Creek 035 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Joliet Fromberg RD over Elbow Creek 035 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 Joliet Fromberg RD over Elbow Creek 035 carry?

About 111 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Joliet Fromberg RD over Elbow Creek 035?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 26 ft wide.

Who owns Joliet Fromberg RD over Elbow Creek 035?

It is owned by the County Highway Agency.