Or 78 (hwy 442) over Silvies Slough(15th Br)

Fair Condition55 years old1,299 vehicles/day

Location

StateOregon
CountyHarney
Location3.6 Mi. E. Jct. US 20/395
CarriesOr 78 (hwy 442)
CrossesSilvies Slough(15th Br)
Coordinates43.58567, -118.98260

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure8 (Very Good)
Channel/Waterway7 (Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length30.8 ft (9.4 m)
Max Span29.9 ft (9.1 m)
Deck Width36.1 ft (11 m)
Deck Area103.4 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 Number03593A442 00361

Nearby Bridges

Airport RD over Nine Mile Slough 0.1 mi Good Or 78 (hwy 442) over Silvies Slough(14th Br) 0.4 mi Good Or 78 (hwy 442) over Foley Slough(13th Br) 0.5 mi Fair Or 78 (hwy 442) over Silvies Slough(12th Br) 0.7 mi Good Or 78 (hwy 442) over Silvies Slough(11th Br) 0.9 mi Good Airport RD over Nine Mile Slough 0.9 mi Good C116 Red Barn LN over Poison Slough 0.9 mi Fair Or 78 (hwy 442) over Silvies Slough(9th Br) 1.7 mi Good Or 205 (hwy 440) over Newman Slough 2.0 mi Good Or 78 (hwy 442) over Silvies Slough(17th Br) 2.1 mi Good