US Bridges

S 200 over Monture Creek

Fair

Powell County, Montana · 3M NW Ovando · Structure no. P00024041+05581

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
2,822
2023 count
Owner
State
State Highway Agency

About this bridge

S 200 over Monture Creek is a prestressed concrete stringer/multi-beam or girder carrying S 200 over Monture Creek in Powell County, Montana. It was built in 1986, so it is 39 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.

It carries about 2,822 vehicles a day, roughly 6% of them trucks, projected to reach 2,963 by 2043. The structure is 122 ft (37.2 m) long and 41 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesS 200
CrossesMonture Creek
Location3M NW Ovando
RouteState Highway 200
CountyPowell County
StateMontana
Coordinates47.04444, -113.19072
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span120 ft (36.6 m)
Deck width41 ft (12.6 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,822 (2023)
Projected traffic2,963 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 S 200 over Monture Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is S 200 over Monture Creek 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 S 200 over Monture Creek carry?

About 2,822 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is S 200 over Monture Creek?

The structure is 122 ft (37.2 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.

Who owns S 200 over Monture Creek?

It is owned by the State Highway Agency.