Interstate 705
| Tacoma Spur | ||||
| Interactive map of Downtown Tacoma with I-705 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-5 | ||||
| Maintained by WSDOT | ||||
| Length | 1.50 mi (2.41 km) | |||
| Existed | 1978–present | |||
| History | Completed in 1988 | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | I-5 / SR 7 in Tacoma | |||
| SR 509 in Tacoma | ||||
| North end | Schuster Parkway in Tacoma | |||
| Location | ||||
| Country | United States | |||
| State | Washington | |||
| County | Pierce | |||
| Highway system | ||||
| 
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Interstate 705 (I-705), also known as the Tacoma Spur, is a short Interstate Highway in Tacoma, Washington, United States. It is a spur route of I-5 that connects the freeway to Downtown Tacoma, Tacoma's waterfront, North Tacoma, and the Tacoma Dome. I-705 was completed in 1988 and is one of the newest portions of the Interstate Highway System in Washington.