| Tacoma Spur | ||||
| Route information | ||||
| Auxiliary route of I-5 | ||||
| Length | 1.50 mi (2.41 km) | |||
| Existed | 1988–present | |||
| History | Codified into law in 1979 | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | ||||
| North end | Schuster Parkway in Tacoma | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| Counties | Pierce | |||
| Highway system | ||||
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Interstate 705 (I-705, Tacoma Spur) is a short Interstate Highway that is spur route of I-5 located in Tacoma, Washington, United States. I-705 serves as the connector between I-5, Downtown Tacoma, Tacoma's waterfront, North Tacoma, and the Tacoma Dome. I-705 was the last new portion of the Interstate Highway System to be constructed in Washington, having opened in 1988.