Final Environmental Impact Report - Whittier Bridge/I-95 ...

Whittier Bridge/I-95 Improvement Project FEIR
Chapter 1.0: Changes Since the Draft Environmental Impact Report and Resolution of Additional Issues
topics to the hired vendors working in this area. Municipal employees will also be invited to
attend;
2. Review the salt spreader routes for this area to ensure there are no overlaps. A preliminary
review of this area indicates that there are no overlaps. MassDOT is aware that New
Hampshire snow and ice equipment travels over the border to Route 286 to turn around and
head north. Contact with cognizant NH personnel have assured us that they are not applying
material on MassDOT roadways;
3. Use corrosion-inhibited liquid Magnesium Chloride for highway pre-treatment and prewetting.
Use of liquid deicers in an anti-icing manner reduce overall salt application by
working more effectively than dry salt alone, allow the roadway to clean-up quicker during a
storm event, and result in less bounce and scatter of road salt.
4. Use closed loop controllers to spread a consistent, uniform application rate of material
independent of truck speed. Controllers are capable of collecting data including speed,
direction and application rate. MassDOT snow and ice operations utilize four spreaders on I-
95 and two separate trucks to address all of the ramps within this section. All of the
equipment is outfitted with closed loop controllers. The designated used for liquid application
is outfitted similarly.
5. Conduct calibration checks of all spreader equipment working in this area to ensure they are
applying material at the maximum prescribed rate of 240 pounds per lane mile, and 20 and 8
gallons per lane mile for pre-treating and pre-wetting liquid application, respectively.
6. Institute a post storm data collection and analysis to check material usage. Excessive use of
materials will be explored further and will be addressed if the situation warrants.
310 CMR 9.33(1)(l) Underwater Archaeological Resources - The Board of Underwater
Archaeological Resources (BUAR) was notified in conjunction with the Section 106 process on July
28, 2011. The BUAR did not express any concerns regarding the project‘s impacts on underwater
archaeological resources in the Merrimack River in the project vicinity.
310 CMR 9.33 (1)(m) Hazardous Waste Management - In accordance with the MassDOT
specifications for Oil and Hazardous Materials, the design/build contractor will be required to monitor
excavated soils during construction to ensure that any soils encountered that could require special
handling will be identified and properly managed.
All hazardous materials will be handled and disposed of in accordance with state and federal laws,
including the Massachusetts Contingency Plan. A soil and groundwater management plan will be
developed and implemented by the design/build contractor during construction. An additional precharacterization
program for areas where construction and/or excavation activities may occur within
the project limits of work will be completed by MassDOT prior to issuing final bid documents for the
design-build contract. This additional data will provide information on current soil and groundwater
conditions at the site and will be used to develop soil and groundwater management and disposal
options.
310 CMR 9.33 (1)(n) Solid Waste Disposal - Solid waste generated during demolition and
construction will be handled and disposed of at a permitted solid waste management facility;
recycled; or beneficially used for purposes that may not qualify as recycling or composting.
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