US Bridges

Winters Lane over Supply Ditch 065

Good

Ravalli County, Montana · 2M S Stevensville · Structure no. L41394000+08001

Built
1994
31 years old
Condition
Good
inspected March 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
122
2023 count
Owner
County
County Highway Agency

About this bridge

Winters Lane over Supply Ditch 065 is a wood or timber slab carrying Winters Lane over Supply Ditch 065 in Ravalli County, Montana. It was built in 1994, so it is 31 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 122 vehicles a day, roughly 3% of them trucks, projected to reach 131 by 2043. The structure is 26 ft (7.8 m) long and 30 ft wide.

CarriesWinters Lane
CrossesSupply Ditch 065
Location2M S Stevensville
RouteCounty Highway 41394
StateMontana
Coordinates46.45779, -114.07577
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span20 ft (6.2 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2023)
Projected traffic131 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Winters Lane over Supply Ditch 065 built?

It was built in 1994, making it 31 years old in 2025.

What condition is Winters Lane over Supply Ditch 065 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 March 2024.

How much traffic does Winters Lane over Supply Ditch 065 carry?

About 122 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Winters Lane over Supply Ditch 065?

The structure is 26 ft (7.8 m) long with a longest span of 20 ft (6.2 m) and a deck 30 ft wide.

Who owns Winters Lane over Supply Ditch 065?

It is owned by the County Highway Agency.