US Bridges

Echo RD over Ross Fork Creek 017

Good

Judith Basin County, Montana · 10M N Garneill · Structure no. L23025000+05001

Built
1993
32 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Echo RD over Ross Fork Creek 017 is a prestressed concrete stringer/multi-beam or girder carrying Echo RD over Ross Fork Creek 017 in Judith Basin County, Montana. It was built in 1993, so it is 32 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 71 ft (21.6 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesEcho RD
CrossesRoss Fork Creek 017
Location10M N Garneill
RouteCounty Highway 23025
StateMontana
Coordinates46.89619, -109.77723
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 inspectionJuly 2024
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 alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span70 ft (21.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Echo RD over Ross Fork Creek 017 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Echo RD over Ross Fork Creek 017 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 July 2024.

How much traffic does Echo RD over Ross Fork Creek 017 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Echo RD over Ross Fork Creek 017?

The structure is 71 ft (21.6 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.

Who owns Echo RD over Ross Fork Creek 017?

It is owned by the County Highway Agency.