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Minimum street right-of-way and roadway widths required for new non-arterial streets. Street right-of-way widths for new non-arterial streets in Downtown or zoned Seattle Mixed shall be determined by the Seattle Department of Transportation. For more information, please contact Street Use.
| Right-of-Way and Roadway Widths for New Non Arterial Streets |
| Land Use Zone Categories* |
Right-of-Way Width |
Roadway Width |
| SF, LDT, L1, NC1 |
50 feet |
25 feet |
| L2, L3, L4, NC2 |
56 feet |
32 feet |
| MR, HR, NC3 |
60 feet |
36 feet |
| C1, C2, IB, IC |
60 feet |
40 feet |
| IG1, IG2 |
66 feet |
40 feet |
* If a project is on a block which is split into more than one land use zone category, the zone category with the most frontage determines the minimum width required. If the land use categories have equal frontage, the one with the
greater width requirement shall be used to determine the minimum width. |
