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JNU DOUGLAS BR RD over GASTINEAU CHANNEL

Juneau Borough, Alaska

Map

Coordinates:
+58.29917, -134.42889
58°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

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
This page's URL is http://bridgereports.com/1000366