US Bridges

W Strater RD over Dodson South Canal 117

FairPosted for load

Phillips County, Montana · 5M E Malta · Structure no. L36259001+04001

Built
1992
33 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

W Strater RD over Dodson South Canal 117 is a steel stringer/multi-beam or girder carrying W Strater RD over Dodson South Canal 117 in Phillips County, Montana. It was built in 1992, so it is 33 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 5 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: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 39 ft (11.9 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesW Strater RD
CrossesDodson South Canal 117
Location5M E Malta
RouteCounty Highway 36227
StateMontana
Coordinates48.37319, -107.76625
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span19 ft (5.9 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 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 closed6.2 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 W Strater RD over Dodson South Canal 117 built?

It was built in 1992, making it 33 years old in 2025.

What condition is W Strater RD over Dodson South Canal 117 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 March 2024.

How much traffic does W Strater RD over Dodson South Canal 117 carry?

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

How long is W Strater RD over Dodson South Canal 117?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.9 m) and a deck 20 ft wide.

Who owns W Strater RD over Dodson South Canal 117?

It is owned by the County Highway Agency.