HomeMy WebLinkAbout11_CM_Construction_Mitigation_Description_230927_v1Date: September 27th, 2023
TO: Andrew Van Gordon
City of Renton, Department of Community & Economic development
RE: DREAMLINER: CONSTRUCTION MITIGATION PLAN
Parcel Number: 722930-058002
Site Address: 511 Airport Way, Renton, WA
Lot Size: 16,000 square feet (0.37 acres)
Zoning: Commercial Arterial (CA) and Commercial Downtown (CD)
Comprehensive Plan: Commercial Mixed Use
Proposed Construction Schedule:
We are planning to commence construction in early November 2024, with a targeted completion
date in December 2026.
Operating Hours:
Construction activities will typically take place from Monday through Friday, between 7 am
and 5 pm.
Proposed Hauling and Transportation Route:
Before the commencement of construction, the contractor will prepare a comprehensive traffic
control plan in accordance with the State of Washington Manual on Uniform Traffic Control
Devices. This plan will be submitted to the Public Works Transportation department for review
and approval. Additionally, the project hauler will apply for the necessary City permits before
initiating any new or expanded hauling operations and will submit a detailed haul route plan.
The project will require the use of a crane for construction. We will contact the FAA (federal
Aviation administration) and City’s airport manager to understand what additional
documentation would be required and provide as needed. A separate permit for installation of
the crane itself will be applied for before its erection on site.
We recognize the importance of traffic management plans in ensuring the safety and efficiency
of construction activities. Construction sites can be bustling with activity, including the
movement of powered mobile vehicles, deliveries, material handling, and various trades working
concurrently to complete the project. A well-designed traffic control plan can help mitigate
potential hazards and disruptions to traffic flow.
We are committed to maintaining a clear separation between pedestrians and vehicles by clearly
marking pedestrian and transport zones with physical barriers. Exclusive traffic routes will be
established to ensure the safe movement of vehicles throughout the site. Loading and unloading
zones will be clearly defined with physical barriers.
The construction site and work area will be clearly marked with appropriate signs and cones. If
necessary, traffic may be diverted to side streets during construction hours with prior approval.
Flaggers will be deployed if the safe management of traffic requires their presence.
Some of the proposed measures may include road closures when deemed necessary for the
safety of both drivers and workers. Detours may be established to minimize traffic congestion
and provide alternative routes for drivers. Traffic signs, cones, and barricades will be strategically
placed around the construction site to communicate the traffic control measures effectively.
Advance notice will be given to drivers to allow them to choose alternative routes, minimizing
potential backups.
Businesses located in close proximity to the construction site will be informed in advance, and
temporary signage will be installed to direct motorists to affected businesses.
Measures to Address Dust, Noise Pollution, and Erosion:
To prevent erosion during construction, we will implement soil stabilization and slope protection
measures such as geotextiles, silt fencing, and sediment traps. The provided drawings include a
drainage and sediment control plan, and the final package will include a comprehensive
Stormwater Pollution Prevention Plan (SWPPP).
Efforts to minimize noise pollution during construction will include the use of low-noise
machinery, regular maintenance, and lubrication of equipment and machinery. The work
schedule will be carefully planned to utilize noisy machinery, if necessary, during times when
fewer people are on-site. Workers operating noisy machinery will be provided with hearing
protection, such as earmuffs and canal caps. Additionally, temporary barriers or enclosures
made from materials with sound-absorbing properties may be constructed around noisy
equipment to significantly reduce noise levels.
Special Construction Hours:
In certain circumstances, the project may require construction activities to occur during
weekends or outside the specified hours mentioned above. In such cases, prior approval will be
sought.
Attached to this document are some of the details to be included with our Traffic Plan.