US Bridges

Stephens RD over Fort Belknap Canal 007

Fair

Blaine County, Montana · 1M NW Chinook · Structure no. L03042001+00001

Built
1999
26 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
212
2023 count
Owner
County
County Highway Agency

About this bridge

Stephens RD over Fort Belknap Canal 007 is a steel stringer/multi-beam or girder carrying Stephens RD over Fort Belknap Canal 007 in Blaine County, Montana. It was built in 1999, so it is 26 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: open, posting recommended but not legally implemented.

It carries about 212 vehicles a day, roughly 3% of them trucks, projected to reach 224 by 2043. The structure is 46 ft (14.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesStephens RD
CrossesFort Belknap Canal 007
Location1M NW Chinook
RouteCounty Highway 3005
StateMontana
Coordinates48.60572, -109.25383
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length46 ft (14.1 m)
Longest span46 ft (14.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212 (2023)
Projected traffic224 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Stephens RD over Fort Belknap Canal 007 built?

It was built in 1999, making it 26 years old in 2025.

What condition is Stephens RD over Fort Belknap Canal 007 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 January 2025.

How much traffic does Stephens RD over Fort Belknap Canal 007 carry?

About 212 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Stephens RD over Fort Belknap Canal 007?

The structure is 46 ft (14.1 m) long with a longest span of 46 ft (14.1 m) and a deck 24 ft wide.

Who owns Stephens RD over Fort Belknap Canal 007?

It is owned by the County Highway Agency.