US Bridges

Beck Hill RD over Int Beckhill I 90 008

Fair

Powell County, Montana · 4M SE Garrison · Structure no. L39249000+02001

Built
1978
47 years old, rebuilt 2014
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
304 ft
2 main spans
Daily traffic
49
2023 count
Owner
State
State Highway Agency

About this bridge

Beck Hill RD over Int Beckhill I 90 008 is a steel continuous stringer/multi-beam or girder carrying Beck Hill RD over Int Beckhill I 90 008 in Powell County, Montana. It was built in 1978 and reconstructed in 2014, so it is 47 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 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 49 vehicles a day, roughly 3% of them trucks, projected to reach 52 by 2043. The structure is 304 ft (92.7 m) long and 34 ft wide.

CarriesBeck Hill RD
CrossesInt Beckhill I 90 008
Location4M SE Garrison
RouteCounty Highway 39249
StateMontana
Coordinates46.48948, -112.72624
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34 US tons
Inventory rating27 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length304 ft (92.7 m)
Longest span152 ft (46.3 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2023)
Projected traffic52 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Beck Hill RD over Int Beckhill I 90 008 built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2014.

What condition is Beck Hill RD over Int Beckhill I 90 008 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 April 2024.

How much traffic does Beck Hill RD over Int Beckhill I 90 008 carry?

About 49 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Beck Hill RD over Int Beckhill I 90 008?

The structure is 304 ft (92.7 m) long with a longest span of 152 ft (46.3 m) and a deck 34 ft wide.

Who owns Beck Hill RD over Int Beckhill I 90 008?

It is owned by the State Highway Agency.