US Bridges

Upham Gulch RD over Cedar Creek 051

Good

Mineral County, Montana · 4M S Superior · Structure no. L31073000+01001

Built
2005
20 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
319
2023 count
Owner
County
County Highway Agency

About this bridge

Upham Gulch RD over Cedar Creek 051 is a prestressed concrete tee beam carrying Upham Gulch RD over Cedar Creek 051 in Mineral County, Montana. It was built in 2005, so it is 20 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 319 vehicles a day, roughly 3% of them trucks, projected to reach 341 by 2043. The structure is 65 ft (19.8 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUpham Gulch RD
CrossesCedar Creek 051
Location4M S Superior
RouteCounty Highway 31073
StateMontana
Coordinates47.15719, -114.91075
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating40 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic319 (2023)
Projected traffic341 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Upham Gulch RD over Cedar Creek 051 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Upham Gulch RD over Cedar Creek 051 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Upham Gulch RD over Cedar Creek 051 carry?

About 319 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Upham Gulch RD over Cedar Creek 051?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 16 ft wide.

Who owns Upham Gulch RD over Cedar Creek 051?

It is owned by the County Highway Agency.