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State: WA
Place Name: Mount Vernon
County: Skagit
NBI Structure Number: 0004794A0000000
Route Sign Prefix: Interstate
Route Number: 5
Facility Carried: I-5
Feature Intersected: SKAGIT RIVER
Location: 0.7 N JCT SR 538
Year Built: 1955
Status: Functionally Obsolete
RecordType: Roadway is carried ON the structure
Level of Service: Mainline roadway
Owner: State Highway Agency
Highway Agency District: 01
Maintenance Responsibility: State Highway Agency
Functional Class: Principal Arterial - Interstate, Urban
Service On Bridge: Highway
Service Under Bridge: Highway-waterway
Latitude: 48 26 35.80 N
Longitude: 122 20 27.90 W
Material Design: Steel
Design Construction: Truss - Thru
Approach Material Design: Concrete continuous
Approach Design Construction: Tee Beam
Structure Length (m): 338.9
Navigation Vertical Clearance (m): 2.4
Approach Roadway Width (m): 21.9
Lanes on Structure: 4
Lanes under Structure: 4
Average Daily Traffic: 70925
Year of Average Daily Traffic: 2010
Design Load: MS 18
Scour: Bridge foundations determined to be stable for assessed or calculated scour condition.
Bridge Railings: Meet currently acceptable standards.
Historical Significance: Bridge is not eligible for the National Register of Historic Places.
# of Spans in Main Structure: 4
# of Spans in Approach Structures: 8
StructureFlared: No flare
Transitions: Does not meet currently acceptable standards.
Approach Guardrail: Meets currently acceptable standards.
Approach Guardrail Ends: Not Applicable
Navigation Control: Navigation control on waterawy (bridge permit required).
Navigation Horizontal Clearance (m): 33.5
Structure Open?: Open, no restrictions
Deck: Satisfactory Condition
Superstructure: Fair Condition
Substructure: Satisfactory Condition
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Sufficiency Rating (%): 57.4