Washington State Route 513

State Route 513
SR 513 is highlighted in red.
Route information
Auxiliary route of I-5
Maintained by WSDOT
Length	3.35 mi[1] (5.39 km)
Existed	1964[2]–present
Major junctions
South end	SR 520 in Seattle
North end	Magnuson Park in Seattle
Location
Country	United States
State	Washington
County	King
Highway system
State highways in Washington Interstate US State Scenic Pre-1964 1964 renumbering Former
← SR 512 → SR 515

State Route 513 (SR 513) is a 3.35-mile-long (5.39 km) state highway in the U.S. state of Washington, located entirely within the city of Seattle in King County. The highway travels north as Montlake Boulevard from an interchange with SR 520 and over the Montlake Bridge to the University of Washington campus in the University District. SR 513 continues past University Village before it turns northeast onto Sand Point Way and ends at the entrance to Magnuson Park in the Sand Point neighborhood.

SR 513 was created during the 1964 state highway renumbering as the successor to Secondary State Highway 1J (SSH 1J), itself created in 1937 and traveling from Downtown Seattle to Lake City. Sections of SSH 1J, including Madison Street from Downtown to Capitol Hill, date as far back as 1854. Most sections of the highway were built in the 1890s and 1900s in preparation for the Alaska–Yukon–Pacific Exposition, which took place on the University of Washington campus in 1909. SR 513 was shortened in 1971 to its present southern terminus, the interchange with SR 520 in Montlake, and to an interchange with Interstate 5 (I-5) on the Seattle–Shoreline city border. In 1991, the highway was truncated to its current northern terminus at Magnuson Park, eliminating its route through Lake City and much of North Seattle.