Note: There are maps in the Records Vault showing the rate of grade of all improved streets in the city. The Vault is located on the 47th floor of the Seattle Municipal Tower, 700 Fifth Avenue, (206) 684-5132.
| Street Name |
Intersections |
Slope |
| East Roy Street |
25th Avenue North to 26th Avenue North |
26.04% |
| East Boston Street |
Harvard Avenue to Broadway Avenue |
23.8% |
| East Highland Drive |
24th Avenue North to 25th Avenue North |
23.6% |
| Mercer Street |
Melrose Avenue to Eastlake Avenue |
22.6% |
| East Boston Street |
Boylston Avenue to Harvard Avenue |
22.5% |
| Mercer Street |
24th Avenue North to 25th Avenue North |
22.4% |
| East Prospect Street |
24th Avenue North to 25th Avenue North |
22.3% |
| Helen Street |
24th Avenue North to 25th Avenue North |
22.0% |
| Helen Street |
25th Avenue North to 26th Avenue North |
21.7% |
| Ward Street |
25th Avenue North to 26th Avenue North |
21.5% |
| Queen Anne Avenue |
Prospect Street to Highland (Counter Balance) |
18.5% |
| Street Name |
Intersections |
Slope |
| Airport Way |
South Hanford Street to South Holgate Street |
2.0% |
| Aurora Avenue North |
Prospect Street to Galer Street |
2.0% |
| Beacon Avenue South |
South Hanford Street to South Stevens Street |
0.7% |
| California Avenue Southwest |
Southwest Graham Street to Fauntleroy Way Southwest |
1.6% |
South Grahm Street |
Wilson Avenue South to Chatham Drive South |
21.5% |
| Highland Park Way Southwest |
West Marginal Way Southwest to Southwest Webster Street |
11.1% |
| Rainier Avenue South |
South Jackson Street to South Dearborn Street |
5.1% |
| Rainier Avenue South |
South cClellan Street to South Winthrop Street |
0.3% |
| Thorndyke Avenue West |
West Plymouth Street to West McGraw Street |
5.0% |
| 15th Avenue Northeast |
Northeast 125th Street to Northeast 127th Street |
2.1% |
| 15th Avenue Northeast |
Northeast 143rd Street Street to Northeast 145th Street Street |
3.9% |
| 35th Avenue Southwest |
Southwest Barton Street to Southwest Henderson Street |
5.0% |
| Northeast 45th Street |
45th Avenue Northeast to 46th Avenue Northeast |
12.0% |
| North 85th Street |
Aurora Avenue North to Linden Avenue North |
8.0% |
| Holgate Street Overpass |
-- |
13.4% |
| Admiral Way Southwest |
Harbor Avenue Southwest to Southwest Spokane Street |
7.0% |
