US Bridges

593 Long Meadow RD over Yaak R

Fair

Lincoln County, Montana · JCT 593/508 · Structure no. 011404000000108

Built
1961
64 years old
Condition
Fair
inspected August 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
141 ft
3 main spans
Daily traffic
50
1994 count
Owner
Federal
U.S. Forest Service

About this bridge

593 Long Meadow RD over Yaak R is a steel stringer/multi-beam or girder carrying 593 Long Meadow RD over Yaak R in Lincoln County, Montana. It was built in 1961, so it is 64 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 141 ft (43 m) long and 18 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
Carries593 Long Meadow RD
CrossesYaak R
LocationJCT 593/508
RouteFederal Lands Road 593
CountyLincoln County
StateMontana
Coordinates48.81121, -115.87464
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length141 ft (43 m)
Longest span90 ft (27.4 m)
Deck width18 ft (5.5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1994)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$20,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 593 Long Meadow RD over Yaak R built?

It was built in 1961, making it 64 years old in 2025.

What condition is 593 Long Meadow RD over Yaak R 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 August 2021.

How much traffic does 593 Long Meadow RD over Yaak R carry?

About 50 vehicles per day (1994 count).

How long is 593 Long Meadow RD over Yaak R?

The structure is 141 ft (43 m) long with a longest span of 90 ft (27.4 m) and a deck 18 ft wide.

Who owns 593 Long Meadow RD over Yaak R?

It is owned by the U.S. Forest Service.