HomeMy WebLinkAboutCM_Construction Mitigation Plan_241015_v1.pdf October 15th, 2024 City of Renton Renton City Hall, 6th Floor 1055 South Grady Way Renton, WA 98057 Regarding: Sunset Highlands Medical Office Shell – Construction Mitigation Plan CONSTRUCTION MITIGATION DESCRIPTION In an effort to provide tactical construction impact mitigation the following plan describes not only the major components of the project but mitigation measures that will be in place to minimize the projects impact on the environment and community as a whole: Construction Dates: The project is estimated to begin in Spring of 2025 with an overall timeline of 10 months from the breaking of ground to the final acceptance of the project by the governing authorities and the owner. Construction Hours and Days of Operation: The project will be completed Monday through Friday with some minor activities being done on some Saturdays to avoid delays and complications. The construction gate will open at 6:00 am and the equipment on site will be turned on at 7:00 am to warm up with operations starting at 7:15 am. The workforce on the project will arrive on the project between 6:00 am and 7:00 am with rollout beginning at 7:00 am. The construction gate will close at 6:00 pm and all equipment will be stopped and shut down by 5:00 pm. The workforce on the project will begin roll-up at 4:00 pm with all work stopping no later than 5:00 pm. The site will always have security fencing in place and the site will be locked during non-construction hours. Construction access will be controlled, and all visitors must report to the construction office and must have the appropriate safety protection (boots, hard hat and safety glasses) to walk the site. Trucking and Transportation Routes: Most common commuting will be done via I-405 to NE Sunset Boulevard, East to the site. Major Trucking and Hauling will follow two common traffic routes: • I-405 to NE Sunset Boulevard, East to the site • I-405 to NE 4th Street, East to Duvall Avenue NE, North to NE Sunset Boulevard, West to the site The total travel time from I-405 to the site is 5-7 minutes using either route. Mitigation and Control of Impacts on the Surrounding Community: The site will be watered during times when dust reaches a level that is disturbing to the surrounding areas in the morning and in the late afternoon or as needed to reduce transient dust from escaping the site and lingering to surrounding areas.
The perimeter of the site will have filter fabric fence installed to gather and hold any and all debris, spoils and “dirty” water from leaving the site without being controlled. Soil and Landscaping materials that are collected and/or gathered in amounts exceeding 2 cubic yards will be covered with visqueen and sandbags to minimize erosion. During heavy hauling or site delivery times, licensed and independently contracted road crews and flagging companies will be used to control traffic flow to and from the site. Each activity that requires traffic flow control will be applied for to the governing authorities and a site control and access plan will be approved. At times when traffic is heightened due to area activities, the local law enforcement agency may be contracted to ensure the safety of the community, and all vehicles leaving the site will enter and leave the flow of traffic in a safe and controlled manner. The site will have crushed rock and tire gravel at the construction entrance to minimize the impact on NE Sunset Boulevard. All dirt or debris tracked on to NE Sunset Boulevard will be addressed with a contracted Street Cleaning service. The site will have times where noise may exceed common daily levels of noise on adjacent properties, but the activities that will affect the community with noise pollution the most will be controlled based on the times that the work will be taking place and the amount of work being done at any one time. The activities will not be grouped together and will be spread out to minimize the effect on local businesses and properties. All generators, compressors and heavy equipment will be inspected to ensure that all current WISHA measures for sound extenuation have been adhered to. All gases, chemicals and toxins will be controlled on site in a single area and will be locked and sealed at all times while they are not being used. The items will be properly placarded and Material Safety Data Sheets will be on site for each item at all times. Secured and Safe Lockers and/or Storage Bins will be used at all times with a properly developed perimeter to ensure the safety of the items on the site. ***** A detailed Communications Plan outlining the steps that will be taken by the contractor and the project owner during the course of construction of the project to alleviate the identified impacts, which shall include, but not be limited to the following: • Schedule of regular meetings with the surrounding businesses throughout the course of construction; • Display of maps and construction schedule information posted in and around the construction area; • Schedule of meetings with the surrounding community, emphasizing the market area of the impacted businesses; • Schedule of regular meeting to coordinate with any other construction project within 500 feet of the project. ***** The potential impacts to businesses within a 1000 foot radius of the Project that shall be addressed in the Construction Impact Mitigation Plan, if applicable, shall include: • Impacts on patronage due to impediments to pedestrian and vehicular access, visual impediments to signage; loss of on street parking, or perceived safety issues; • Forced temporary business closure due to loss of utilities, loss of access for patrons and employees, loss of access for services such as deliveries or garbage service, or perceived safety issues; • Forced permanent business closure due to permanent loss of pedestrian or vehicular access. TYPES OF MITIGATION MEASURES THAT MAY BE REQUIRED:
• Physical Impacts: Traffic detours, temporary sidewalks, construction coordination meetings • Environmental Impacts: Car wash vouchers, pressure washing sidewalks and driveways • Communications: Community meetings pre- and during construction, expanded project signage with project information and contact names, a fax distribution to community and stakeholders in and around the affected area, central contact with staff on site. • Other Impacts: Project signage to support businesses, parking assistance for employees and customers, business association outreach EXTRAORDINARY MEASURES THAT MAY BE REQUIRED: • Physical Impacts: Long-term detour signage, temporary traffic signals, special bus routes and shuttles • Environmental Impacts: Acoustic window treatments, HVAC upgrades/ installation, temporary utility services, noise attenuation barriers • Communication: Regular newsletter, construction hotline, marketing assistance—advertising, promotions, special events to mark milestones (groundbreaking, openings), up-to-date information made available at an information center, information kiosks with maps and construction information posted in and around construction area, newspaper articles and press releases—regular updates to local reporters, weekly meetings with affected businesses, residents and property owners during construction, advertising(including print & broadcast) to promote region. • Other Impacts: Marketing assistance, technical business support, cross-promotion efforts with adjacent businesses Thank you, Tyler Graff | Assistant Project Manager Graves+Associates