I 90 over Lower Deer Creek

Fair Condition46 years old6,153 vehicles/day

Location

StateMontana
CountySweet Grass
Location0.6m W Greycliff
CarriesI 90
CrossesLower Deer Creek
Coordinates45.77864, -109.80338

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length71.5 ft (21.8 m)
Max Span65.9 ft (20.1 m)
Deck Width44.0 ft (13.4 m)
Deck Area292.1 sq m
Main Spans1
Year Built1980

Traffic

Avg Daily Traffic6,153 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last Inspection923
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090377+02361

Nearby Bridges

I 90 over Lower Deer Creek 0.0 mi Good Old US 10 over Lower Deer Creek 006 0.2 mi Fair I 90 over Spring Creek 0.3 mi Fair Old US 10 over Spring Creek 035 0.4 mi Fair I 90 over Int Greycliff 0.8 mi Fair I 90 over Int Greycliff 0.8 mi Fair Bointer RD over Sweet Grass Creek 044 1.0 mi Poor Old US 10 over Upper Deer Creek 005 1.7 mi Good I 90 over Upper Deer Creek 1.7 mi Fair I 90 over Upper Deer Creek 1.7 mi Fair