GCEDC STAMP Discharge Analysis

JM Davidson Engineering, D.P.C. (JMD) was subcontracted by CPL to perform a hydrologic and hydraulic analysis on Oak Orchard Creek in the Town of Shelby, New York.  The hydraulic analysis was part of the investigation and design of the Western New York Science and Technology Advanced Manufacturing Park (STAMP) facility proposed by the Genesee County Economic Development Center (GCEDC).  As part of the design, the STAMP facility is proposed to provide its own, individual wastewater treatment facility (WWTF).  The STAMP WWTF is proposed to discharge, via a force main, into Oak Orchard Creek in the Town of Shelby, approximately 2,500 ft downstream of the Main Street bridge.

JMD was contracted to perform a hydraulic analysis of Oak Orchard Creek to determine the impacts on flooding that the proposed WWTF discharge may have in the area.

The work performed included:

• Conducting a site visit to obtain field measurements of multiple bridges within the hydraulic model limits and to get a visual sense of the topography and hydraulic conditions within the study area.
• Conducting a hydrologic analysis review including documentation of FEMA data, USGS gage data, Log Pearson Type III analyses, and USGS regression equation data from USGS Stream Stats.
• Building an existing conditions steady state 1-D hydraulic model using HEC-RAS.  The model was predominantly built utilizing available LiDAR data and field measurements.
• Modifying the existing conditions model to mimic the proposed discharge conditions.
• Providing flood inundation mapping for the existing and proposed conditions to visualize the impacts of flooding as a result of the proposed project.