Lennon, Smith, Souleret Engineering, Inc. (LSSE), provides engineering and surveying services for civil-site development and related infrastructure for commercial, big box and mixed-use developments in south-western Pennsylvania and the Tri-State region.


LSSE has provided planning through design and construction phase services for over 200 projects including; over 50 big-box commercial sites, strip malls, warehouse/distribution centers, package delivery hubs, research (additive technology) facilities, hotels, retail stores, over 150 “GetGo” convenience/gas refueling stations, etc. on Greenfield and Brownfield redevelopment sites.

Services Provided:

  • Due Diligence Investigation Reports and Concept Plans
  • Site Master Planning, and Layout Plans
  • Infrastructure/Utilities Design
  • Pavement and Parking Facilities Design
  • Subdivision and Lot Consolidation Plans
  • Wetland Delineation/Mitigation Plans
  • Water System Hydraulic Models for Fire Protection
  • On-site Traffic Optimization Studies
  • Special Site-Specific Truck Turning, Access Studies and Design Plans
  • Federal Emergency Management Agency (FEMA) Flood Map Update and Letter of Map Revision (LOMR) Submissions