State:AK
Place Name:Anchorage
County:Anchorage
NBI Structure Number: 0405
Route Sign Prefix:U.S. Highway
Route Number:496
Facility Carried:PORTAGE GLACIER RD
Feature Intersected:PORTAGE CR OVERFLOW NO 3
Location:MILE POINT 4.1
Year Built:1966
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:Minor Arterial, Rural
Service On Bridge:Highway
Service Under Bridge:Waterway
Latitude:60 47 18.00 N
Longitude:148 52 36.00 W
Material Design:Concrete
Design Construction:Slab
Approach Material Design:Other
Approach Design Construction:Other
Structure Length (m):25.3
Approach Roadway Width (m):9.8
Lanes on Structure:2
Average Daily Traffic:1036
Year of Average Daily Traffic:2010
Design Load:MS 18
Scour:Bridge foundations determined to be stable for the 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:3
Bridge Median:No Median
StructureFlared:No flare
Transitions:Meets currently acceptable standards.
Approach Guardrail:Meets currently acceptable standards.
Approach Guardrail Ends:Meets currently acceptable standards.
Navigation Control:No Navigation Control on waterway (bridge permit not required).
Structure Open?:Open, no restrictions
Deck:Satisfactory Condition
Superstructure:Satisfactory Condition
Substructure:Satisfactory Condition
Structural Evaluation:Equal to present minimum criteria
Sufficiency Rating (%):67.4