SR 14 over DUNCAN CR


+45.61324, -122.05494
45°36'48" N, 122°03'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 14 over DUNCAN CR
Structure number:0001047A0000000
Location:11.1 E CLARK CO
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:42.0 ft. [12.8 m]
Total length:44.0 ft. [13.4 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Owner:State Highway Agency [01]
Year built:1926
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Concrete [1]
Main span design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:4,843 [as of 2016]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 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:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:45.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$598,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2018FairSatisfactorySatisfactorySatisfactory484345.3
April 2016FairSatisfactorySatisfactorySatisfactory359250.2
April 2014FairSatisfactorySatisfactorySatisfactory359250.2
April 2012FairSatisfactorySatisfactorySatisfactory390450.2
May 2010FairSatisfactorySatisfactorySatisfactory427150.2
May 2008FairSatisfactorySatisfactorySatisfactory411950.2
June 2006FairGoodSatisfactorySatisfactory370050.2
May 2004FairGoodGoodSatisfactory370050.2
March 2002FairGoodGoodSatisfactory370050.2
May 2000FairGoodGoodSatisfactory279950.2
May 1998FairGoodGoodSatisfactory279952.2
June 1996FairGoodGoodSatisfactory279944.5
November 1994FairGoodGoodSatisfactory279944.5
July 1992FairGoodGoodSatisfactory292544.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.88680200
Reinforced Concrete Decksq. ft.1,0561,055001
Wearing Surfacessq. ft.1,05601,05600
Reinforced Concrete Floor Beamlinear ft.150150000
Reinforced Concrete Abutmentlinear ft.102102000
Reinforced Concrete Pile Cap/Footinglinear ft.11000
Reinforced Concrete Pileeach43010
Open Jointlinear ft.4800048
Movable Bearingeach22000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.8888000