NE AIRPORT WAY over B-137 X COLUMBIA SLOUGH

Map 

Facts 

Name:	NE AIRPORT WAY over B-137 X COLUMBIA SLOUGH
Structure number:	25B137000000000
Location:	APW BRIDGE B NR PUMP STA.
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Minor Arterial (Urban) [16]
Length of largest span:	66.9 ft. [20.4 m]
Total length:	69.9 ft. [21.3 m]
Roadway width between curbs:	60.0 ft. [18.3 m]
Deck width edge-to-edge:	73.2 ft. [22.3 m]
Owner:	City or Municipal Highway Agency [04]
Year built:	1992
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 22.5 / HS 25 [9]
Main span material:	Prestressed concrete [5]
Main span design:	Box beam or girders - Multiple [05]
Deck type:	Concrete Precast Panels [2]
Wearing surface:	Bituminous [6]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	13,771 [as of 2007]
Truck traffic:	10% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 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]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	74.8 tons [68.0 metric tons]
Inventory rating:	44.9 tons [40.8 metric tons]
Sufficiency rating:	99.0

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	12,600 [as of 1998]
Truck traffic:	10% of total traffic
Deck condition:	Excellent [9 out of 9]
Superstructure condition:	Excellent [9 out of 9]
Substructure condition:	Excellent [9 out of 9]
Channel protection:	There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	59.4 tons [54.0 metric tons]
Inventory rating:	44.6 tons [40.5 metric tons]
Sufficiency rating:	99.0

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