Or 78 (hwy 442) over Silvies Slough(11th Br)

Good Condition55 years old1,299 vehicles/day

Location

StateOregon
CountyHarney
Location2.7 Mi. E. Jct. US 20/395
CarriesOr 78 (hwy 442)
CrossesSilvies Slough(11th Br)
Coordinates43.58588, -118.99990

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure8 (Very Good)
Channel/Waterway7 (Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length41.0 ft (12.5 m)
Max Span40.0 ft (12.2 m)
Deck Width36.1 ft (11 m)
Deck Area137.5 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic1,299 (2022)
Truck Traffic33%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number03589A442 00274

Nearby Bridges