US Bridges

S Valley Creek RD over Jocko River 056

Good

Lake County, Montana · 4M NW Arlee · Structure no. L24397000+04001

Built
2012
13 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
161 ft
1 main span
Daily traffic
124
2023 count
Owner
County
County Highway Agency

About this bridge

S Valley Creek RD over Jocko River 056 is a steel stringer/multi-beam or girder carrying S Valley Creek RD over Jocko River 056 in Lake County, Montana. It was built in 2012, so it is 13 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 124 vehicles a day, roughly 3% of them trucks, projected to reach 133 by 2043. The structure is 161 ft (49 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesS Valley Creek RD
CrossesJocko River 056
Location4M NW Arlee
RouteCounty Highway 24320
StateMontana
Coordinates47.21733, -114.14251
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating41 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length161 ft (49 m)
Longest span158 ft (48.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124 (2023)
Projected traffic133 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$234,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S Valley Creek RD over Jocko River 056 built?

It was built in 2012, making it 13 years old in 2025.

What condition is S Valley Creek RD over Jocko River 056 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 January 2025.

How much traffic does S Valley Creek RD over Jocko River 056 carry?

About 124 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S Valley Creek RD over Jocko River 056?

The structure is 161 ft (49 m) long with a longest span of 158 ft (48.2 m) and a deck 31 ft wide.

Who owns S Valley Creek RD over Jocko River 056?

It is owned by the County Highway Agency.