US Bridges

S 200S over Spring Creek

Good

Dawson County, Montana · 2 M SE of Lindsay · Structure no. P00057306+09881

Built
1966
59 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
2 main spans
Daily traffic
1,032
2023 count
Owner
State
State Highway Agency

About this bridge

S 200S over Spring Creek is a prestressed concrete stringer/multi-beam or girder carrying S 200S over Spring Creek in Dawson County, Montana. It was built in 1966, so it is 59 years old, older 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 1,032 vehicles a day, roughly 17% of them trucks, projected to reach 1,094 by 2043. The structure is 114 ft (34.6 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS 200S
CrossesSpring Creek
Location2 M SE of Lindsay
RouteState Highway 200
StateMontana
Coordinates47.20461, -105.10747
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating29 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length114 ft (34.6 m)
Longest span56 ft (17.1 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,032 (2023)
Projected traffic1,094 by 2043
Trucks17%
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 200S over Spring Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is S 200S over Spring Creek 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 November 2023.

How much traffic does S 200S over Spring Creek carry?

About 1,032 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is S 200S over Spring Creek?

The structure is 114 ft (34.6 m) long with a longest span of 56 ft (17.1 m) and a deck 42 ft wide.

Who owns S 200S over Spring Creek?

It is owned by the State Highway Agency.