US Bridges

Upper N Hill RD over East Fk Roberts CR 006

Fair

Wheatland County, Montana · 12M SE Judith Gap · Structure no. L54102005+07001

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
34
2023 count
Owner
County
County Highway Agency

About this bridge

Upper N Hill RD over East Fk Roberts CR 006 is a prestressed concrete slab carrying Upper N Hill RD over East Fk Roberts CR 006 in Wheatland County, Montana. It was built in 1962, so it is 63 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 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 34 vehicles a day, roughly 3% of them trucks, projected to reach 36 by 2043. The structure is 36 ft (11 m) long and 19 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUpper N Hill RD
CrossesEast Fk Roberts CR 006
Location12M SE Judith Gap
RouteCounty Highway 54134
StateMontana
Coordinates46.51919, -109.64795
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating25.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2023)
Projected traffic36 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Upper N Hill RD over East Fk Roberts CR 006 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Upper N Hill RD over East Fk Roberts CR 006 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 September 2024.

How much traffic does Upper N Hill RD over East Fk Roberts CR 006 carry?

About 34 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Upper N Hill RD over East Fk Roberts CR 006?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 19 ft wide.

Who owns Upper N Hill RD over East Fk Roberts CR 006?

It is owned by the County Highway Agency.