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I-5 over SKAGIT R

Map 

Coordinates:
+48.44578, -122.34111
48°26'45" N, 122°20'28" W
Source: National Bridge Inventory (1992, 2000, 2010 editions)
Information not verified. Use at your own risk.

Facts 

Name:I-5 over SKAGIT R
Structure number:0004794A0000000
Location:0.7 N JCT SR 538
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:160.1 ft. [48.8 m]
Total length:1111.9 ft. [338.9 m]
Roadway width between curbs:56.1 ft. [17.1 m]
Deck width edge-to-edge:60.0 ft. [18.3 m]
Vertical clearance above deck:15.4 ft. [4.7 m]
Vertical clearance below bridge:7.9 ft. [2.4 m]
Owner:State Highway Agency [01]
Year built:1955
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Truss - Thru [10]
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:70,526 [as of 2007]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:63.4 tons [57.6 metric tons]
Inventory rating:37.6 tons [34.2 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:59.8
Estimated cost of work:$1,035,000

2000 Inspection 

Status:Open, no restriction [A]
Average daily traffic:46,975 [as of 1994]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:63.4 tons [57.6 metric tons]
Inventory rating:37.6 tons [34.2 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:74.8
Estimated cost of work:$1,197,000

1992 Inspection 

Status:Open, no restriction [A]
Average daily traffic:29,200 [as of 1984]
Truck traffic:15% of total traffic
Deck condition:Serious [3 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Scour calculation/evaluation has not been made. [6]
Operating rating:54.5 tons [49.5 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Evaluation:Structurally deficient [1]
Sufficiency rating:72.2
Recommended work:Replacement of bridge or other structure because of relocation of road. [32]
Estimated cost of work:$8,270,000