US Bridges

S Frontage RD 011 over Abandoned RR 043

Good

Powell County, Montana · 8M S Deer Lodge · Structure no. L39242007+06001

Built
2014
11 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
916
2023 count
Owner
State
State Highway Agency

About this bridge

S Frontage RD 011 over Abandoned RR 043 is a concrete culvert carrying S Frontage RD 011 over Abandoned RR 043 in Powell County, Montana. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 916 vehicles a day, roughly 2% of them trucks, projected to reach 980 by 2043. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesS Frontage RD 011
CrossesAbandoned RR 043
Location8M S Deer Lodge
RouteState Highway 81011
StateMontana
Coordinates46.26776, -112.75269
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating39 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length24 ft (7.2 m)
Longest span22 ft (6.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic916 (2023)
Projected traffic980 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$699,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Frontage RD 011 over Abandoned RR 043 built?

It was built in 2014, making it 11 years old in 2025.

What condition is S Frontage RD 011 over Abandoned RR 043 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 2024.

How much traffic does S Frontage RD 011 over Abandoned RR 043 carry?

About 916 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S Frontage RD 011 over Abandoned RR 043?

The structure is 24 ft (7.2 m) long with a longest span of 22 ft (6.6 m).

Who owns S Frontage RD 011 over Abandoned RR 043?

It is owned by the State Highway Agency.