MTA logged over 450 test pits and performed over 1,000 laboratory permeability tests within a nine week time frame as part of a fast track stormwater investigation required for design and approval of a 50 mile long widening of the Garden State Parkway between exits 30 to 80. The project will include construction of over 125 stormwater infiltration swales/trenches that will be established in interlayered soils conditions. The project fell within the Pinelands jurisdiction and required that MTA work closely with the design engineer, T&M Associates, and Pinelands reviewers to assure adherence to the project design requirements, and the Pinelands stormwater testing and soils evaluation procedures.

The project was in the planning phase for many years and prior stormwater investigations and testing had been deemed insufficient to obtain the necessary Pinelands approvals. MTA, under the direction of Project Manager Lisa Devos, utilized four teams in the field and both of our New Jersey soil testing laboratories to meet the critical time demands of the project. Our work also included review of the proposed conceptual stormwater trench designs and development of suggested construction monitoring methods to develop an acceptable infiltrative surface.

MTA's expertise in the current stormwater regulations and familiarity with proposed future testing requirements being considered by the NJDEP can help expedite your next project. Contact Lisa Devos or Bob Schwankert for information.