2019.02.28 Applicant Memo - Construction ImpactsRalph G. Mastromonaco, PE PC Consulting Engineers
PROJECT: North Ridge Street Development
259 North Ridge Street
Rye Brook, New York
SCOPE: Construction Management Impacts and Logistics Plan
North Ridge Street Development
FOR: Lazz Development, Lou Larizza
8 Hilltop Drive
Port Chester, NY 10573
DATE: February 28, 2019
This report identifies the potential impacts of construction based on the work shown on the Site
Plan.
The relevant, anticipated impacts related to the construction phase are also identified in the FEAF
(Full Environmental Assessment Form) for the project and include; noise, work hours, periods of
construction, potential impoundments, extent of excavation, description of drainage flows, air
emissions, use of pesticides or herbicides, generation of solid waste, recycling or disposal of
materials.
Further, the detailed erosion and sedimentation plan also describes mitigation during construction.
Other impacts that were requested to be examined are as follows:
Traffic:
The construction of the homes is intended to be modular. This type of construction will involve
fewer workers than conventional house construction. The house structure is to be built off-site and
trucked to the site. As can be seen from the included traffic counts, the workers who will be arriving
by vehicle on site at 8:00 a.m. will not coincide with the peak hours on North Ridge Street.
Increased demand for parking:
Access to the site and parking will be provided on the site. There is no need to park vehicles off
site.
Construction traffic routing:
Construction will be mitigated by having one crane on site for erection of the modular and delivering
from off-site one modular unit at a time. The construction of the modular, attached houses will take
about one week duration which is far less than standard construction.
Ralph G. Mastromonaco, PE PC Consulting Engineers
2 North Ridge Street Development
Need for materials storage and staging areas:
The need for materials storage and staging areas is mitigated by the very few materials needed to
store on site due to the modular construction. The dwellings are prefabricated so there will be
minimal storage of lumber or materials. All materials will be stored on site.
Security and safety on the construction site:
The developer will comply with all OSHA standards and the site will be secured each evening.
Increased noise:
Noise will be mitigated during construction by running only the machines necessary at any time.
In general, noise generation would during the initial site grading which should last a few weeks.
Since the construction is modular there will be no lengthy noise impacts.
Vibration:
Vibration associated with construction is not anticipated.
Potential erosion and sedimentation:
The potential for erosion and sedimentation is mitigated by the installation of the numerous erosion
control measures prior to any soil disturbance or construction. The erosion control measures are
inspected and repaired weekly.
Potential for rock removal:
Rock removal is not anticipated to have impacts as most of regrading will be achieved by placing
fill. If any rock removal is required for a foundation it will be chipped with a small hammer rather
than large heavy construction equipment.
Peak hour traffic:
Based on the traffic counts taken from April 13 through April 19, 2016 by ATI, Inc. for this project, the
weekday morning peak traffic occurs in the northbound direction on North Ridge Street between 6
am and 8 am.
For example, on Thursday, April 14, 2016, from 6 am to 8 am there were 727 cars headed
northbound (325+402).
On that day there were 402 vehicles in the hour of 7 am to 8 am. For the 8 am to 9 am period there
were just 191 vehicles.
Accordingly, the construction workers arrive at the site after 8 am during a period where the traffic is
merely at an average rate for the day rather than a peak rate.
In general, the number of trips into the site between 8 am and 9 am would be around 8 vehicles,
representing only about 4% of the 8 am peak traffic on North Ridge Street.
Ralph G. Mastromonaco, PE PC Consulting Engineers
3 North Ridge Street Development
Table: Sample Traffic Counts Thursday April 14, 2016
Further, note that AM and PM peak traffic hours will not be effected as the workers pull in and park
on site and not on any adjoining streets. North Ridge Street will not be used for staging, parking of
constructions vehicles or the storage of equipment.
Impacts to air quality:
There are no anticipated impacts to air quality as the use of machinery is limited to standard
construction backhoes and excavators of a scale commonly found working in the area.
Conclusion:
Any adverse conditions will be eliminated or mitigated by this construction management plan. The
construction documents demonstrate compliance with Village Code requirements regarding
construction, and identifies the specific best practices pertinent to the site and the development
plan.
Submitted By:
Ralph G. Mastromonaco, PE
RGM/mte
Cc: Lou Larizza