Lower Sweet Grass over Yellowstone River 038

Fair Condition35 years old100 vehicles/day

Location

StateMontana
CountySweet Grass
LocationSE Greycliff
CarriesLower Sweet Grass
CrossesYellowstone River 038
Coordinates45.75986, -109.77181

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical7 — Countermeasures installed

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length353.0 ft (107.6 m)
Max Span118.1 ft (36 m)
Deck Width25.9 ft (7.9 m)
Deck Area850.0 sq m
Main Spans3
Year Built1991

Traffic

Avg Daily Traffic100 (2025)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL49001000+08001

Nearby Bridges

I 90 over Int Greycliff 1.2 mi Fair I 90 over Int Greycliff 1.2 mi Fair I 90 over Spring Creek 1.7 mi Fair Old US 10 over Spring Creek 035 1.7 mi Fair Old US 10 over Lower Deer Creek 006 2.0 mi Fair I 90 over Lower Deer Creek 2.0 mi Good I 90 over Lower Deer Creek 2.0 mi Fair Bointer RD over Sweet Grass Creek 044 2.1 mi Poor I 90 over Greycliff Creek RD 2.3 mi Fair I 90 over Greycliff Creek RD 2.3 mi Fair