Share:

JNU DOUGLAS BR RD over GASTINEAU CHANNEL

Juneau Borough, Alaska

Map

Coordinates:
+58.29833, -134.42833
58°17'54" N, 134°25'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:JNU DOUGLAS BR RD over GASTINEAU CHANNEL
Structure number:0740
Location:MILE POINT 0.1
Purpose:Carries highway and pedestrian walkway over highway and waterway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:620.1 ft. [189.0 m]
Total length:1286.5 ft. [392.1 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:49.9 ft. [15.2 m]
Owner:State Highway Agency [01]
Year built:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Prestressed concrete continuous [6]
Main spans design:Segmental box girder [21]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,396 [as of 2014]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
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:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:78.3 tons [71.2 metric tons]
Inventory rating:23.1 tons [21.0 metric tons]
Sufficiency rating:58.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201558.5FairGoodSatisfactorySatisfactory-4396
June 201357.6GoodGoodGoodGood-9435
June 201157.5GoodGoodGoodGood-10783
July 200971.0GoodGoodGoodGood-8699
November 200757.6GoodGoodGoodGood-14157
September 200557.6GoodGoodGoodGood-13759
October 200357.0GoodGoodGoodGood-13562
November 200160.0FairVery GoodFairFair-13718
July 199960.0FairVery GoodFairFair-14607
March 199773.0GoodVery GoodGoodGood-14607
September 199573.0GoodVery GoodGoodGood-12254
November 199373.0GoodVery GoodGoodGood-12316
November 199173.0GoodExcellentVery GoodExcellent-11720