Permits have been issued (or are in the process of being issued) by the State of Maryland including Tidal Wetland Licenses from the Board of Public Works, a Nontidal Wetlands and Waterways Permit from MDE Wetlands and Waterways Program, approval of Stormwater Management and Erosion and Sediment and Erosion Control Plans from MDE’s Sediment and Stormwater Plan Review Division (SSPRD), National Pollutant Discharge Elimination System (NPDES) Permit for Stormwater Associated with Construction Activity from MDE’s Wastewater Pollution Prevention and Reclamation Program, a Memorandum of Understanding with the Maryland Department of Natural Resources (MDNR) Critical Area Commission, and Reforestation Law approval from MDNR’s Forest Service (in progress). MDTA’s proposed approach to fulfill mitigation requirements for unavoidable impacts to resources regulated at the federal and state level has been approved by regulatory agencies. Modifications to federal and state permits will continue to be sought, as needed, to address changes in activities and/or impacts to regulated resources as the Project progresses through design and construction. Coordination with FHWA is on-going to ensure compliance with NEPA and documentation is being prepared as required.
Preconstruction
The Design-Builder has performed the following pre-construction activities:
Vibration Analysis •
Completed Vibration Estimates and Impact Analysis to estimate vibration levels and effects from driving proposed steel pipe piles, the potential for other pile sizes, and blasting demolition activities that will be transmitting vibration to adjacent structures and utilities of concern.
Preconstruction Survey •
Completed pre-construction surveys of adjacent properties and structures within a one-mile radius of the project site to document their pre-construction condition. More than 1,100 structures were identified and surveyed on the exterior. A total of 57 property owners requested the inspection team to perform a survey of the inside of the structures. • Completed Roadway geometry survey work • Identified Right-of-Way (ROW) • Identified terrestrial features (storm drain and above ground utilities) and conducted aerial LiDAR scans for survey • Performed high-resolution geophysical survey to provide information on location of marine utilities and debris within the riverbed • Performed bathymetric survey of the river bottom within project limits to generate a terrain model of the river bottom surface • Installed monitors for baseline noise and vibration levels • Completed probing for subsurface obstructions
Geotechnical Investigations • Completed land and marine soil borings for subsurface geotechnical investigations
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