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Nearby Bridges in NBI 2021: 1


DALTON HIGHWAY over YUKON RIVER (Route: 65)
Num:271x
Open: no restriction [A]
Built: 1975, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

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Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Orthotropic [08]
Approach Span(s): Other [00]
Deck: Steel plate (includes orthotropic) [5] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 699.5 m = 2295.1 ft
Main Spans: 6 at 125 m = 410.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 9.4 m = 30.8 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 15.2 m = 49.9 ft
Location
Livengood [44580]: Yukon-Koyukuk Census Area [290], Alaska [02]
Owned by State Highway Agency [01], DOT District: 2
MILE POINT 55.8
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Inventory: 35.5 metric ton = 39.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: July 2020 [0720] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 203 (2018) and Trucks: 53%
Future ADT: 300 (In 2035 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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