HWY 1W (STEEL BR) over WILLAMETTE RIVER

Map 

Facts 

Name:	HWY 1W (STEEL BR) over WILLAMETTE RIVER
Structure number:	06683 01WX00036
Location:	0.4 MI NE PORTLAND CC
Purpose:	Carries highway and railroad over railroad and waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	299.9 ft. [91.4 m]
Total length:	799.9 ft. [243.8 m]
Roadway width between curbs:	49.9 ft. [15.2 m]
Deck width edge-to-edge:	64.0 ft. [19.5 m]
Vertical clearance above deck:	17.7 ft. [5.4 m]
Vertical clearance below bridge:	160.1 ft. [48.8 m]
Owner:	Railroad [27]
Year built:	1910
Historic significance:	Bridge is eligible for the National Register of Historic Places [2]
Design load:	MS 18 / HS 20 [5]
Main span material:	Steel [3]
Main span design:	Truss - Thru [10]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	24,216 [as of 2007]
Truck traffic:	4% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Poor [4 out of 9]
Substructure condition:	Fair [5 out of 9]
Pier/abutment protection:	In place and functioning [2]
Scour condition:	Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Operating rating:	59.8 tons [54.4 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	47.9
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$4,508,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	20,000 [as of 1996]
Truck traffic:	7% of total traffic
Deck condition:	Good [7 out of 9]
Pier/abutment protection:	In place and functioning [2]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	39.6 tons [36.0 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	73.6
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$6,554,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	17,400 [as of 1989]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Pier/abutment protection:	In place and functioning [2]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	39.6 tons [36.0 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	77.3

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