When first posted as such in January 1964, SR 513 started at Jct US 10 in Downtown Seattle and headed east via Madison St to 23rd Ave E, then north to the Montlake Bridge, a few blocks north of SR 520. From the Montlake Bridge, SR 513 followed Sand Point Way past the University of Washington and Sand Point to NE 125th St. At 125th, SR 513 turned left and headed west to Roosevelt Way. Heading NW on Roosevelt, SR 513 continued to 5th Ave NE, then north on 5th to NE 145th St, where SR 513 ended at the I-5 NE 145th St interchange.
In 1971, the Downtown Seattle to Jct SR 520 portion of SR 513 was dropped from the state highway system. Effective April 1, 1992, the portion of SR 513 from the intersection of NE 65th St and Sand Point Way northerly and westerly to Jct I-5 was dropped from the state highway system. Today, the remaining SR 513 is 3.35 miles long.
Before 1964, SR 513 had been SSH 1J.
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