Subsurface utility locating

Accumark provides subsurface utility services to municipal, institutional and private clients, with over 20 years of experience. Services include subsurface utility designation and mapping, subsurface utility locating via vacuum excavation test holes, ground penetrating radar (GPR), and pipe inspection. The company serves civil engineers, surveyors, local municipalities, state and federal agencies, private utility companies, contractors, and land developers.

AutoCAD and MicroStation mappingCCTV pipe inspectionground penetrating radar (GPR)Subsurface utility designation & mappingTotal station surveyVacuum excavation test holes

Atlantic Coast Locators is a full-service utility locating service provider and damage prevention company that uses electromagnetic induction and ground-penetrating radar (GPR) to locate buried assets including fiber communications, high voltage electricity, high-pressure gas mains, water, and sewer pipes. The company serves land surveyors, engineers, contractors, and the general public across North America.

electromagnetic induction locatingground penetrating radar (GPR)underground utility mapping

National Engineering & Architectural Services (NEAS), Inc. was founded in 1992 and has developed from a two-person bridge design firm to a multi-disciplined operation. NEAS is a certified DBE and SBE firm in the State of Ohio and provides Geotechnical Engineering, Drilling, and Laboratory Testing; Survey; Right-of-Way Plan Development; Subsurface Utility Locating; Bridge Design; and Construction Inspection, Management, and Materials Testing. NEAS has an AASHTO-accredited laboratory and locations in Northern, Central, and Southern Ohio.

bridge designconstruction inspectionconstruction managementconstruction materials testinggeotechnical drillinggeotechnical engineeringGeotechnical laboratory testingright of way plan developmentsurvey

David Evans and Associates, Inc. (DEA) is a multidisciplinary engineering and planning firm offering services for transportation, land development, energy, water and environment, surveying and geomatics, and marine projects. The firm states more than 47 years of proven success and is headquartered in Portland, Oregon.

3D Modelingconstruction managementgeographic information systemsgeospatial analysishydrographic surveysLiDARmobile laser scanningmultibeam bathymetric sonarphotogrammetryPLS-CADD plan and profile designroute selectionside scan sonarsmall unmanned aerial systems (sUAS)structure selection and design

GeoEnviroTech is a full service drilling and environmental contractor providing field services to its clients. It samples groundwater and soil using Geoprobe direct push and Hollow Stem Auger drill rigs, and its bilingual, OSHA-certified personnel perform soil gas surveys, monitoring well installation, and subsurface utility locating.

direct push samplingdual tubing samplinggroundwater samplinghollow stem auger drillingmacro-core samplingmonitoring well installationsoil gas surveyssoil sampling

Gratia Geomatics is a Commercial Land Surveying & Geospatial Services firm located in North Houston, Texas. Formed in May 2019 and launched full-time in January 2020, the team has over 60 years of collective industry experience. The firm is certified SBE, DBE, MBE, HUB, and TxDOT HUB, and provides land surveying and geospatial solutions to engineering firms and governmental agencies.

construction stakingDrone LiDARGeospatial servicesGISGPS surveyinghydrographic surveysland surveyingphotogrammetryremote sensingRight-of-way mappingterrestrial laser scanning

JoynerKeeny, PLLC was founded in 1985 by Nils W. Joyner and Timothy L. Keeny as a small business company of Professional Land Surveyors. The firm provides land planning, surveying, civil engineering, subsurface utility exploration, environmental and stormwater management services to developers, contractors, utility companies, roadway and railway companies, municipalities and Federal and State agencies throughout the southeast. It has a staff of 34 employees and is licensed as Professional Land Surveyors in North Carolina, Virginia, Georgia, Florida, Kent

Aerial imaging and photogrammetrycivil engineeringconstruction stakingenvironmental permittingGIS mappingGround Penetrating Radarland planningland surveyingStormwater facility designVacuum excavation/potholing