US Bridges

S 200 over RR

Good

Sanders County, Montana · 2M SE Thompson Falls · Structure no. P00006053+03571

Built
2000
25 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
228 ft
3 main spans
Daily traffic
2,686
2023 count
Owner
State
State Highway Agency

About this bridge

S 200 over RR is a prestressed concrete stringer/multi-beam or girder carrying S 200 over RR in Sanders County, Montana. It was built in 2000, so it is 25 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 2,686 vehicles a day, roughly 5% of them trucks, projected to reach 2,820 by 2043. The structure is 228 ft (69.6 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesS 200
CrossesRR
Location2M SE Thompson Falls
RouteState Highway 200
CountySanders County
StateMontana
Coordinates47.58207, -115.29833
Functional classRural Minor Arterial

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.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length228 ft (69.6 m)
Longest span82 ft (25.1 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,686 (2023)
Projected traffic2,820 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 200 over RR built?

It was built in 2000, making it 25 years old in 2025.

What condition is S 200 over RR 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 August 2023.

How much traffic does S 200 over RR carry?

About 2,686 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S 200 over RR?

The structure is 228 ft (69.6 m) long with a longest span of 82 ft (25.1 m) and a deck 42 ft wide.

Who owns S 200 over RR?

It is owned by the State Highway Agency.