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US101 (HWY 9) over Half Viaduct

Map

Coordinates:
+45.74427, -123.95973
45°44'39" N, 123°57'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US101 (HWY 9) over Half Viaduct
Structure number:01954A 009 4066
Location:015 MI S SHORT SANDS BCH
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:15.1 ft. [4.6 m]
Total length:44.9 ft. [13.7 m]
Roadway width between curbs:28.9 ft. [8.8 m]
Deck width edge-to-edge:23.6 ft. [7.2 m]
Owner:State Highway Agency [01]
Year built:1940
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,400 [as of 2017]
Truck traffic:16% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:63.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018GoodGoodGoodGood440063.4
October 2016GoodGoodGoodGood350065.9
October 2014GoodGoodGoodGood370065.3
October 2012GoodGoodGoodGood370065.3
October 2010GoodGoodGoodGood420064.0
October 2008GoodGoodGoodGood420066.9
October 2006GoodGoodGoodGood490064.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Reinforced Concrete Girder/Beamlinear ft.9090000
Deck
Reinforced Concrete Top Flangesq. ft.930930000
Wearing Surfacessq. ft.675675000
Substructure
Other Material Columneach44000
Reinforced Concrete Columneach44000
Reinforced Concrete Abutmentlinear ft.4747000
Joints
Other Jointlinear ft.2222000
Bearings
Movable Bearingeach22000
Bridge Rail
Masonry Bridge Raillinear ft.4545000