OR 99W (HWY 001W) over SW VERMONT ST VIADUCT

Map 

Facts 

Name:	OR 99W (HWY 001W) over SW VERMONT ST VIADUCT
Structure number:	01984 01W 00350
Location:	0.3 M S OF HWY 40
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	38.1 ft. [11.6 m]
Total length:	530.9 ft. [161.8 m]
Roadway width between curbs:	47.9 ft. [14.6 m]
Deck width edge-to-edge:	57.4 ft. [17.5 m]
Skew angle:	37°
Owner:	State Highway Agency [01]
Year built:	1934
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	M 13.5 / H 15 [2]
Number of main spans:	18
Main spans material:	Wood or timber [7]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	18,400 [as of 2008]
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	52.9 tons [48.1 metric tons]
Inventory rating:	41.9 tons [38.1 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	65.3
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$2,721,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	38,000 [as of 1998]
Truck traffic:	7% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	52.5 tons [47.7 metric tons]
Inventory rating:	41.6 tons [37.8 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	76.4
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$4,010,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	12,200 [as of 1990]
Truck traffic:	10% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	27.3 tons [24.8 metric tons]
Inventory rating:	18.6 tons [16.9 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	49.7

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