Jeff Gray

About Jeff Gray

Thirty three years refining my skills as a surveyor with over twenty five years in a supervisory/trainingrole; outstanding technical aptitude, attention to detail, organization and adaptability; experienced withmany facets of surveying to include project planning and management; design plan interpretation andlayout computations; As-built CAD drawings; 3d CAD modeling; Laser scan processing and analysis,as well as field layout for: tunnel shafts, adits, subsurface structures, bridges, industrial facilities andcommercial buildings; static GPS network planning, coordination and processing; conventionalhorizontal and digital level control network planning and adjustment; Tunnel surface and subsurfacecontrol; Control transfer to shafts; SEM tunnel and Pipe Jacking layout and guidance; topographic,boundary, ALTA surveys; settlement and convergence monitoring; aerial mapping and LiDAR controlnetworks and verification, VMT TBM and MTBM navigation; Layout for sanitary, storm, water,drilled/driven pile/sheet pile, slurry and cement bentonite walls; potholing and exploratory trenching;familiar with DOT, rail, airfield, military, federal, state and commercial environments; physically fit.

Experience

1. Survey Manager

   Traylor Bros., Inc.

   Nov 2023 — Present · Alexandria, VA, US

   Manage survey department equipment and expendables budget, equipment maintenance and calibration. Prioritize and schedule all survey tasks. Coordinate with subcontractors related to survey. Attend meetings and provide important survey related information to management, client and field staff-Using static GPS, precision total station, and digital level, plan, perform and process verification and densification of horizontal and vertical survey control networks-Perform survey and produce topographic drawings for current site surface conditions and buried utilities-Produce 3d drawing from topographic data to aid in clash detection or design refinement-Interpret design drawings to establish field survey layout data-Electronically “Build” structures utilizing 3-dimensional CAD to find errors/concerns that may impact buildability; calculate concrete quantities; produce 3d visual for field personnel support-Perform tunnel traverse survey, process/adjust survey data and update survey control to VMT navigation system-Perform and process deformation and convergence monitoring-Conduct concrete form position layout and checks for structures, shafts, etc-Layout for supports of excavation to include, secant and tangent pile walls, soldier piles, micro piles, etc-Layout for buried drainage, water, gas, and electric utilities as well as curb & gutter, sidewalks-Complete layout drawings to support field operations and for record of layout and ongoing as-built-Perform as-built surveys for structures, shafts, tunnels, buried utilities and sidewalks, etc-Perform terrestrial laser scanning, process scan data, extract details, perform analysis and report-Maintain, adjust and calibrate total station, level, tribrachs, rods and poles.Equipment and software: Leica RTC360 Laser scanner; Leica GS18 RTK; Leica TS16i robotic total station; Leica CS20; Leica LS10; Register 360 Plus, 3DR Pro, Leica Infinity; AutoCAD Civil3D; Star*Net Pro

Education

• Defense Mapping School - National Imagery and Mapping College

  MOS 0261, Geodetic Surveying; Terrain Analysis; Cartography

  1997 — 1998

• Marine Corps Engineer School

  MOS 1161, Air Conditioning & Refrigeration

  1990 — 1990

• California Apprentice Council

  Rodman/Chainman, Surveying Technology/Surveying

  2002 — 2004

• Plymouth State University

  Computer and Information Sciences, General

  1987 — 1988

• Marine Corps School of Infantry

  MOS 0331, Machine Gunner

  1992 — 1992