South Tongass HWY over Front Street Viaduct

Fair Condition57 years old8,330 vehicles/day

Location

StateAlaska
CountyKetchikan Gateway
LocationMile Point 2.0
CarriesSouth Tongass HWY
CrossesFront Street Viaduct
Coordinates55.34210, -131.64790

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length247.0 ft (75.3 m)
Max Span49.9 ft (15.2 m)
Deck Width60.0 ft (18.3 m)
Deck Area1378.0 sq m
Main Spans5
Year Built1969

Traffic

Avg Daily Traffic8,330 (2020)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number1080

Nearby Bridges

South Tongass HWY over Front And Mill ST Viad 0.1 mi Good South Tongass HWY over Water ST Viaduct 0.2 mi Poor Grant Street over Grant Street Viaduct 0.2 mi Fair Spruce Mill Way over Front St/spruce Mill Way 0.2 mi Good Park Street over Ketchikan CR Park-lower 0.2 mi Fair Hopkins Alley over Bauer-hopkins Trestle 0.2 mi Fair Bayview Street over Bayview Street Viaduct 0.3 mi Good South Tongass HWY over Ketchikan Creek 0.3 mi Fair Warren Street over Warren ST Viaduct 0.3 mi Good Park/harris ST over Ketchikan Creek 0.3 mi Poor