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Nearby Bridges in NBI 2021: 2


OLD STERLING HWY over ANCHOR RIVER (Route: 0)
Num:910x
Posted for load [P]
Built: 1949, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 56.1 m = 184.1 ft
Main Spans: 1 at 54.9 m = 180.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 5.7 m = 18.7 ft (2 Lanes) and Out-To-Out: 6.1 m = 20.0 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 4.12 m = 13.5 ft and Navigational Clearance: 0 = N/A
Location
Anchor Point [03110]: Kenai Peninsula Borough [122], Alaska [02]
Owned by State Highway Agency [01], DOT District: 1
MILE POINT 8.4
Condition
Deck: Satisfactory [6]
Superstructure: Serious [3]
Substructure: Poor [4]
Loading
Design: MS 13.5 / HS 15 [3]
Operating: 27.4 metric ton = 30.1 tons (Load Factor(LF) [1])
Inventory: 11.9 metric ton = 13.1 tons (Load Factor(LF) [1])
Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Superior to present desirable criteria [9] and "Bridge with ""unknown"" foundation that has not been evaluated for scour. [U]"
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 2.6 km = 1.6 mi
Traffic
ADT: 1603 (2018) and Trucks: 8%
Future ADT: 1700 (In 2035 )
STERLING HIGHWAY over ANCHOR RIVER CULVERTS (Route: 21)
Num:4020x
Open: no restriction [A]
Built: 1951, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel [3] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]
Bridge Dimensions
Length: 13.1 m = 43.0 ft
Main Spans: 4 at 2.4 m = 7.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 ft for a 10.8 m = 35.4 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Anchor Point [03110]: Kenai Peninsula Borough [122], Alaska [02]
Owned by State Highway Agency [01], DOT District: 1
MILE POINT 117.1
Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Inventory: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: N/A [N]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 1999 [899] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 19.9 km = 12.3 mi
Traffic
ADT: 3396 (2018) and Trucks: 11%
Future ADT: 4000 (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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