The planned roadway and route
Actual construction of follow-on phases of the project depends on securing additional funding for right of way purchases and building the roadway. Once completed, the new roadway will provide four through-lanes. Access will be provided at three signalized intersections (two in American Lake Gardens and one at Spanaway Loop Road Southerly extension) and at a new interchange near A Street (roughly mid-way along the project) to provide access into McChord AFB and Fort Lewis.
The existing Thorne Lane interchange will be relocated 300 feet southwest and reconstructed to accommodate additional traffic, pass over the Burlington Northern Santa Fe (BNSF) railroad tracks southwest of I-5, and connect to a new single-lane southbound connector road southwest of the BNSF railroad tracks between Gravelly Lake Drive and Thorne Lane (Gravelly-Thorne Connector).
The intersection of 176th Street S and SR 7 will also be enlarged with additional lanes for turning movements.
On Fort Lewis, a new over crossing of the BNSF tracks will be constructed. Lincoln Road (on Fort Lewis) will be realigned to connect with the new A Street interchange, and a new military access road between Fort Lewis and McChord AFB will be constructed.