An open house was held Tuesday night to gather public input on plans to turn the former Lynnwood High School site into a mixed-use development that includes a Costco. But it’s not too late to have your say.You can submit written comments until Nov. 21 to LHS.EIS@ci.lynnwood.wa.us.

The Lynnwood Crossing development plans are now in the public comment stage, after completion of the Draft Environmental Impact Statement (DEIS) earlier this month. The DEIS looked at all aspects of the project including traffic and noise, air quality, stormwater and drainage, and even the loss of the recreational facilities at the site.

The developer’s preferred alternative calls for a Costco with fueling center at the northeast corner of the site. The southern portion would be developed as a mixed-use office, retail, medical, restaurant, amusement and residential center. Building heights would range from single-story to seven-stories high.

Included in the amusement category are a health club, movie theater and bowling alley.

To handle the added traffic, a new three-lane roadway would extend northward from 184th Street SW along the western side of the site, then east along the northern portion where it would intersect with Alderwood Mall Parkway at Maple Road. The city is reserving the option to expand the road to five lanes should traffic require this in the future.

According to the DEIS, traffic generated by the proposal has been reviewed and modeled to ensure that transportation circulation is consistent with city standards.

Construction of the Costco and infrastructure (roads, sewer and drainage) would begin no earlier than May 2012 and would take about four months. Construction of the southern portion is expected to begin in 2013 and would take about 18 months to complete. Before that can happen, the city must approve zoning changes.

You can view the entire DEIS on the city’s website.