I 90 over Greenough Dr-rattlesnake

Fair Condition60 years old15,284 vehicles/day

Location

StateMontana
CountyMissoula
LocationMissoula
CarriesI 90
CrossesGreenough Dr-rattlesnake
Coordinates46.87243, -113.98410

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length244.8 ft (74.6 m)
Max Span101.4 ft (30.9 m)
Deck Width38.1 ft (11.6 m)
Deck Area865.4 sq m
Main Spans4
Year Built1966

Traffic

Avg Daily Traffic15,284 (2023)
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00090105+04671

Nearby Bridges

I 90 over Greenough Dr-rattlesnake 0.0 mi Fair I 90 over Rattlesnake Cr-int Ramp 0.0 mi Fair Vine ST over Rattlesnake Creek 002 0.0 mi Good I 90 WB over Int Van Buren Street 0.2 mi Fair I 90 EB over Int Van Buren Street 0.2 mi Good US 12-e Broadway S over Rattlesnake Creek 0.2 mi Fair E Front ST over Rattlesnake Creek 0.3 mi Fair Madison St-us 12 over Clark Fork River 0.4 mi Fair S Higgins AVE over Clark Fork R-ped Paths 0.7 mi Fair I 90 over Int Orange Street 0.7 mi Good