Engineering Design & Topographic Survey– Confidential Client – Ohio
STONE performed surveying, wetland and stream assessment, and construction site design services for a 20-acre site utilizing a phased-development approach. Design components included roadway and access design to meet high weight loads and large turning radius, water line connection and supply, new electric drop and connection, parking areas, building areas, as well as discussions on foundation issues. Topographic surveying and mapping were completed as part of the base mapping for the site, and included utility location. A Waters of the U.S. Delineation was performed by STONE to determine potential development limitations due to the presence of wetlands and streams. STONE’s Project Manager worked closely with client personnel to ensure the project remained on schedule and that the construction plans met the client’s needs.
Because the project site was located within the watershed of Big Darby Creek it was required by the Ohio EPA to implement a Stormwater Pollution Prevention Plan (SWP3), which STONE developed in accordance with the “Storm Water Discharges Associated with Construction Activity in the Big Darby Creek under the National Pollutant Discharge Elimination System (NPDES).” Due to the conversion of land to impervious area, a significant effort was needed in the management of stormwater and in the mitigation due to the location of the site. The SWP3 proposed to preserve the existing riparian area along a stream via a temporary conservation easement area, and to install a temporary sediment control basin with the intention to later convert it to a permanent detention basin. Meetings with Ohio EPA were held to develop the proposed mitigation and to creatively address the storm water management.