I-5 (HWY 001) NB over COLUMBIA RIVER

Map 

Facts 

Name:	I-5 (HWY 001) NB over COLUMBIA RIVER
Structure number:	01377A001 30838
Location:	AT INTERSTATE BRIDGE
Purpose:	Carries highway and pedestrian walkway over highway and waterway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	278.9 ft. [85.0 m]
Total length:	3538.2 ft. [1078.4 m]
Roadway width between curbs:	38.1 ft. [11.6 m]
Deck width edge-to-edge:	45.3 ft. [13.8 m]
Vertical clearance above deck:	15.4 ft. [4.7 m]
Vertical clearance below bridge:	14.1 ft. [4.3 m]
Owner:	State Highway Agency [01]
Year built:	1916
Year reconstructed:	1958
Historic significance:	Bridge is on the National Register of Historic Places [1]
Design load:	M 13.5 / H 15 [2]
Number of main spans:	11
Main spans material:	Steel [3]
Main spans design:	Movable - Lift [15]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Latex Concrete or similar additive [3]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	64,286 [as of 2008]
Truck traffic:	15% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Fair [5 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:	25.0 tons [22.7 metric tons]
Inventory rating:	15.0 tons [13.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	31.5
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$26,595,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	58,310 [as of 1998]
Truck traffic:	8% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:	Navigation protection not required [1]
Scour condition:	Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:	39.6 tons [36.0 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	57.0
Recommended work:	Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:	$17,663,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	53,400 [as of 1989]
Truck traffic:	9% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:	Navigation protection not required [1]
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:	71.0

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