JNU DOUGLAS BR RD over GASTINEAU CHANNEL
Map
Coordinates:
+58.29917, -134.4288958°17'57" N, 134°25'44" 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: | 49.2 ft. [15.0 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 2017
Good/Fair/Poor Condition: | Fair |
Status: | Open, no restriction [A] |
Average daily traffic: | 8,562 [as of 2016] |
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: | Meets minimum tolerable limits to be left in place as is [4] |
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] |
Sufficiency rating: | 57.5 |
Previous Inspections
Date | Condition | Deck | Superstructure | Substructure | ADT | Suff. Rating |
---|
June 2017 | Fair | Good | Satisfactory | Satisfactory | 8562 | 57.5 |
June 2015 | Fair | Good | Satisfactory | Satisfactory | 4396 | 58.5 |
June 2013 | Good | Good | Good | Good | 9435 | 57.6 |
June 2011 | Good | Good | Good | Good | 10783 | 57.5 |
July 2009 | Good | Good | Good | Good | 8699 | 71.0 |
November 2007 | Good | Good | Good | Good | 14157 | 57.6 |
September 2005 | Good | Good | Good | Good | 13759 | 57.6 |
October 2003 | Good | Good | Good | Good | 13562 | 57.0 |
November 2001 | Fair | Very Good | Fair | Fair | 13718 | 60.0 |
July 1999 | Fair | Very Good | Fair | Fair | 14607 | 60.0 |
March 1997 | Good | Very Good | Good | Good | 14607 | 73.0 |
September 1995 | Good | Very Good | Good | Good | 12254 | 73.0 |
November 1993 | Good | Very Good | Good | Good | 12316 | 73.0 |
November 1991 | Good | Excellent | Very Good | Excellent | 11720 | 73.0 |
Element Data
Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Element | Units | Quantity | 1-Good | 2-Fair | 3-Poor | 4-Serious |
---|
Superstructure |
Prestressed Concrete Closed Web/Box Girder | linear ft. | 1,280 | 1,216 | 64 | 0 | 0 |
Deck |
Prestressed Concrete Top Flange | sq. ft. | 56,600 | 56,554 | 45 | 1 | 0 |
Wearing Surfaces | sq. ft. | 46,950 | 46,480 | 470 | 0 | 0 |
Concrete Protective Coating | sq. ft. | 46,950 | 46,950 | 0 | 0 | 0 |
Substructure |
Reinforced Concrete Pier Wall | linear ft. | 80 | 0 | 80 | 0 | 0 |
Reinforced Concrete Abutment | linear ft. | 90 | 40 | 50 | 0 | 0 |
Joints |
Pourable Joint | linear ft. | 40 | 38 | 1 | 1 | 0 |
Assembly with Seal | each | 110 | 38 | 36 | 36 | 0 |
Bearings |
Elastomeric Bearing | each | 8 | 5 | 3 | 0 | 0 |
Bridge Rail |
Steel or Aluminum Bridge Rail | linear ft. | 3,912 | 0 | 3,877 | 35 | 0 |
Steel Protective Coating | sq. ft. | 17,810 | 8,905 | 0 | 0 | 8,905 |