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PARKS HIGHWAY over TANANA RIVER AT NENANA

Map

Coordinates:
+64.56577, -149.10234
64°33'57" N, 149°06'08" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:PARKS HIGHWAY over TANANA RIVER AT NENANA
Structure number:0202
Location:MILE POINT 270.7
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:500.0 ft. [152.4 m]
Total length:1307.2 ft. [398.4 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:36.1 ft. [11.0 m]
Vertical clearance above deck:18.0 ft. [5.5 m]
Vertical clearance below bridge:39.4 ft. [12.0 m]
Owner:State Highway Agency [01]
Year built:1967
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,849 [as of 2015]
Truck traffic:15% of total traffic
Deck condition:Excellent [9 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:66.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016FairExcellentSatisfactorySatisfactory184966.6
July 2014FairFairSatisfactorySatisfactory143767.6
July 2012FairFairSatisfactorySatisfactory144667.6
August 2010FairFairSatisfactorySatisfactory146166.8
July 2008FairFairSatisfactorySatisfactory140666.8
June 2006FairFairSatisfactorySatisfactory155465.2
June 2005FairFairFairSatisfactory157154.2
July 2004FairFairFairSatisfactory162454.2
August 2002FairFairFairFair155154.2
August 2000FairFairFairFair155154.2
August 1998FairFairFairFair149154.2
September 1996GoodGoodGoodGood148465.2
May 1994GoodGoodGoodGood138170.5
September 1992GoodGoodGoodGood160968.7
July 1990GoodGoodGoodGood160968.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,8401,10473600
Steel Protective Coatingsq. ft.20,05018,9751,07500
Steel Stringerlinear ft.6,0105,41060000
Steel Protective Coatingsq. ft.26,73025,6551,07500
Deck
Reinforced Concrete Decksq. ft.47,31044,9452,36500
Superstructure
Steel Trusslinear ft.2,0001,285700150
Steel Protective Coatingsq. ft.114,800028,70028,70057,400
Steel Floor Beamlinear ft.1,10301,10120
Steel Protective Coatingsq. ft.14,44014,440000
Steel Gusset Plateeach1681383000
Steel Protective Coatingsq. ft.1,20001,20000
Substructure
Reinforced Concrete Columneach88000
Reinforced Concrete Pier Walllinear ft.1301042600
Reinforced Concrete Abutmentlinear ft.70561400
Reinforced Concrete Pier Caplinear ft.1301102000
Joints
Pourable Jointlinear ft.330330000
Open Jointlinear ft.110110000
Bearings
Movable Bearingeach2202200
Steel Protective Coatingsq. ft.2201546600
Fixed Bearingeach2202200
Steel Protective Coatingsq. ft.2201546600
Bridge Rail
Other Material Bridge Raillinear ft.2,61402,61400