HomeMy WebLinkAboutEx27_Construction Mitigation Description
Page | 1
3300 N Triumph Blvd, Suite 100, Lehi, UT 84043 | www.west77partners.com | 2265 116th Ave NE, Suite 110-C, Bellevue, WA 98004
February 3, 2023
Clark Close
Senior Planner
City of Renton
1055 South Grady Way
Renton, WA 98057
RE: West77 Partners – Construction Mitigation Description
Dear Mr. Close
West77 Partners understands and proposes the following in order to address the Construction Mitigation requirements.
Proposed Construction dates:
• Pending permit approval, 9/11/23 thru 10/18/24.
Hours and days of Operation:
• Monday through Friday during hours permitted by the City of Renton.
Proposed Hauling/transportation routes:
• The primary vehicular construction access point will be located on Park Avenue N at the proposed southernmost
driveway entrance.
Measures to be implemented to minimize dust, traffic and transportation impacts, erosion, mud, noise, and other noxious
characteristics:
• TESC measures will be installed as depicted in the plans. Silt fencing around the perimeter of the affected site,
catch basin inserts at onsite catch basins and adjacent downstream catch basins, a quarry spall construction
entrance for ingress egress, water truck for dust control and a vacuum sweeper truck to maintain jobsite frontage
streets.
Any special hours proposed for construction or hauling:
• We do not anticipate special hauling on weekends or holidays. Additionally, we do not anticipate construction
work occurring on weekends. If this is required, we will inquire with the city for permission.
Preliminary traffic control plan:
• We do not anticipate needing a traffic control plan since the original utility work for this development was
completed and all services were stubbed to the site. If, however, the city deems a TCP would be required,
attached is a preliminary copy.
Page | 2
3300 N Triumph Blvd, Suite 100, Lehi, UT 84043 | www.west77partners.com | 2265 116th Ave NE, Suite 110-C, Bellevue, WA 98004
Groundwater Dewatering:
• If groundwater is encountered during construction activities, per the Geotechnical Engineering Report dated
October 29, 2019, it is anticipated that groundwater in excavations less than about 5 feet below existing grades
can be controlled by open pumping using sump pumps. For excavations extending deeper and below the static
ground water table, dewatering using well points or deep wells will be necessary. A proposed dewatering plan will
be prepared and provided prior to construction activities.
Soil and/or Groundwater Contamination:
• The Phase II Limited Site Investigation Report prepared by PSI, Inc. dated June 11, 2018, for the Topgolf project
included soil sampling at the proposed Renton Park, LLC development. As stated by PSI, the soil, groundwater,
and soil-gas sampling were below laboratory reporting limits and MTCA screening levels. Therefore, PSI
recommended no additional investigation was required.
If you have any questions or would like to further discuss the contents herein, I will welcome the opportunity to meet with
you and your team to further discuss. Otherwise, please feel free to contact me at (801) 448-2079 or email:
aaron@west77partners.com
Very truly yours.
AAron Converse
Development Manager
West77 Partners
3300 N Triumph Blvd, suite 100
Lehi UT, 84043