HWY 72 (12TH ST) over Shelton Ditch


+44.93264, -123.02926
44°55'58" N, 123°01'45" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:HWY 72 (12TH ST) over Shelton Ditch
Structure number:08111 072 00623
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:44.9 ft. [13.7 m]
Total length:44.9 ft. [13.7 m]
Roadway width between curbs:45.9 ft. [14.0 m]
Deck width edge-to-edge:58.1 ft. [17.7 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1929
Year reconstructed:1956
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Design load:MS 22.5 / HS 25 [9]
Main span material:Concrete [1]
Main span design:Arch - Deck [11]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,600 [as of 2017]
Truck traffic:4% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 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:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:In place and functioning [2]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:84.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2018FairSatisfactorySatisfactoryFair1860084.0
November 2016FairSatisfactorySatisfactoryFair3650083.0
November 2014FairSatisfactorySatisfactoryFair1141284.4
November 2012FairSatisfactorySatisfactoryFair1141284.4
November 2010FairGoodSatisfactoryFair1141280.6
August 2009FairGoodSatisfactoryFair1141280.6
November 2008PoorGoodSatisfactoryCritical1141227.3
November 2006FairGoodSatisfactoryFair1065083.8
November 2004FairGoodSatisfactoryFair1050086.9
November 2002FairGoodSatisfactoryFair965087.0
November 2000FairGoodSatisfactoryFair1930082.9
November 1998FairVery GoodGoodSatisfactory1930094.2
November 1996GoodVery GoodGoodGood2090070.8
November 1994GoodVery GoodGoodGood2090071.4
October 1992GoodVery GoodGoodGood2000078.7
January 1990GoodVery GoodVery GoodGood2000078.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.210210000
Reinforced Concrete Archlinear ft.45211590
Reinforced Concrete Top Flangesq. ft.2,6102,5955100
Wearing Surfacessq. ft.2,07002,07000
Reinforced Concrete Abutmentlinear ft.5248220
Other Jointlinear ft.110110000
Movable Bearingeach44000
Steel Protective Coatingsq. ft.88000
Fixed Bearingeach44000
Steel Protective Coatingsq. ft.88000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1931533910
Steel Protective Coatingsq. ft.1,90001,520190190