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HWY 72 (12TH ST) over Shelton Ditch

Marion County, Oregon

Map

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

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Facts

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
Location:	CITY OF SALEM
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

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
November 2018	Fair	Satisfactory	Satisfactory	Fair	18600	84.0
November 2016	Fair	Satisfactory	Satisfactory	Fair	36500	83.0
November 2014	Fair	Satisfactory	Satisfactory	Fair	11412	84.4
November 2012	Fair	Satisfactory	Satisfactory	Fair	11412	84.4
November 2010	Fair	Good	Satisfactory	Fair	11412	80.6
August 2009	Fair	Good	Satisfactory	Fair	11412	80.6
November 2008	Poor	Good	Satisfactory	Critical	11412	27.3
November 2006	Fair	Good	Satisfactory	Fair	10650	83.8
November 2004	Fair	Good	Satisfactory	Fair	10500	86.9
November 2002	Fair	Good	Satisfactory	Fair	9650	87.0
November 2000	Fair	Good	Satisfactory	Fair	19300	82.9
November 1998	Fair	Very Good	Good	Satisfactory	19300	94.2
November 1996	Good	Very Good	Good	Good	20900	70.8
November 1994	Good	Very Good	Good	Good	20900	71.4
October 1992	Good	Very Good	Good	Good	20000	78.7
January 1990	Good	Very Good	Very Good	Good	20000	78.7

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 Girder/Beam	linear ft.	210	210	0	0	0
Reinforced Concrete Arch	linear ft.	45	21	15	9	0
Deck
Reinforced Concrete Top Flange	sq. ft.	2,610	2,595	5	10	0
Wearing Surfaces	sq. ft.	2,070	0	2,070	0	0
Substructure
Reinforced Concrete Abutment	linear ft.	52	48	2	2	0
Joints
Other Joint	linear ft.	110	110	0	0	0
Bearings
Movable Bearing	each	4	4	0	0	0
Steel Protective Coating	sq. ft.	8	8	0	0	0
Fixed Bearing	each	4	4	0	0	0
Steel Protective Coating	sq. ft.	8	8	0	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	193	153	39	1	0
Steel Protective Coating	sq. ft.	1,900	0	1,520	190	190

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
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