US Bridges

Sarpy Creek RD over Int Sarpy Creek I 94

Fair

Treasure County, Montana · 2M SW Sanders · Structure no. S00384057+00651

Built
1967
58 years old, rebuilt 1976
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
259 ft
5 main spans
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

Sarpy Creek RD over Int Sarpy Creek I 94 is a prestressed concrete stringer/multi-beam or girder carrying Sarpy Creek RD over Int Sarpy Creek I 94 in Treasure County, Montana. It was built in 1967 and reconstructed in 1976, so it is 58 years old, older 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 259 ft (78.9 m) long and 33 ft wide.

CarriesSarpy Creek RD
CrossesInt Sarpy Creek I 94
Location2M SW Sanders
RouteState Highway 384
StateMontana
Coordinates46.2634, -107.13806
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29 US tons
Inventory rating26.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length259 ft (78.9 m)
Longest span72 ft (21.9 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$765,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sarpy Creek RD over Int Sarpy Creek I 94 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1976.

What condition is Sarpy Creek RD over Int Sarpy Creek I 94 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 February 2024.

How much traffic does Sarpy Creek RD over Int Sarpy Creek I 94 carry?

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

How long is Sarpy Creek RD over Int Sarpy Creek I 94?

The structure is 259 ft (78.9 m) long with a longest span of 72 ft (21.9 m) and a deck 33 ft wide.

Who owns Sarpy Creek RD over Int Sarpy Creek I 94?

It is owned by the State Highway Agency.