Digital Information Requirements for Site Road Approvals and Permits

Applicable Case Types

At the time of permit issuance, and at the time of as-built approval, the engineer shall provide the following digital information to DPIE, for these case types:

  • Site Development Concept
  • Site Development Rough Grading Permit
  • Site Development Fine Grading Permit (including Infill Lots)
  • Street Construction Permit
  • Special Permits
  • Street Grade Establishment
  • Right-of-Way Plats

Digital Information Requirements List

  1. Engineer shall provide to DPIE access to the Engineer’s FTP site or a CD or flash drive, so that DPIE can download legible pdfs of the signed and sealed permit plans, reports and documents. These digital records must include the DPIE approval stamps.

    • For Site Development Concept Plans, the engineer shall provide approved site development concept plan, drainage area maps, calculations, notification letters and affidavit of notification.
    • For Site Development Rough Grading Permits, Site Development Fine Grading Permits, Street Construction Permits, and Special Permits, the engineer shall provide plans, computations, drainage area maps, calculations, and reports. The engineer shall provide storm drain/SWM/paving plans, site/landscape plans, TCP2 plans, traffic plans, roadway plans, E&S plans, M-NCPPC plans, geotechnical reports, approved waiver letters, declaration of covenant for maintenance, recorded easements, recorded right-of-way plats, and other supporting documentation.
    • For Street Grade Establishment Plan, the engineer shall provide merged plans for each street and approved waiver letters.
    • For As-Built Plans, the engineer shall provide approved plans and computations. The engineer shall provide approved As-Built Storm Drain and Stormwater Management (SWM) plans, calculations, drainage area map, and any newly recorded declaration of covenants and easements.
    • Each plan type and each report shall be combined into one merged PDF document.

  1. Engineer shall provide CADD files or GIS format files at the time of permit issuance and at the time of as-built approval. For floodplain studies, the engineer shall provide CADD files or GIS format files. The engineer shall provide the following, as applicable, in a CADD format (AutoCAD DXF or DWG, MicroStation DGN) or in a GIS format (ESRI Shapefile or Geodatabase). The files must be provided in the current Maryland State Plane Coordinate System on a SINGLE FILE. Also, lines representing the Edge of Pavement or Road Curb should be placed in a separate layer or on a separate level to other entities within the CADD file. The engineer shall provide the following CADD information:

    • Roadway edge of pavements
    • Roadway centerline
    • Property lines
    • Property lot, block, and parcel numbers
    • Roadway names
    • Building footprints
    • Driveways
    • Parking areas
    • Storm drain lines
    • Storm drain structures (including inlet and outlet control devices for SWM ponds)
    • Best Management Practices (BMP) devices
    • Drainage Areas (the divides and the drainage area annotations)
    • Street lighting (both existing and proposed)
    • Permanent traffic signals and regulatory signage
    • Permanent signing and pavement marking
    • Floodplains (existing and proposed)

NOTE:  If files are larger than 10 megabytes, please submit a CD or thumb drive to DPIE NPDES Engineer, Yonas Tesfai (  Contact Yonas Tesfai at 301-636-2060 with questions.