rehabilitation design

Advanced Asphalt Technologies, LLC (AAT) is a small engineering company specializing in engineering and testing services for the asphalt paving industry. Started in 1993 to provide commercial application of asphalt research products from the Strategic Highway Research Program (SHRP), it operates an AASHTO-accredited laboratory in a 5,200 sq. ft facility in Kearneysville, WV. AAT also partners with Pavetest Pty. Ltd. to sell and service pavement materials testing systems.

aggregate characterizationasphalt material testingasphalt mixture performance testingequipment service and supportForensic investigationsMarshall mixture designmodified binder designquality control and quality assurancerecycled binder characterizationstructural pavement designSuperpave mixture designtraining

Atakapa Services, LLC specializes in evaluating, maintaining and designing rehabilitation methods for sanitary sewer and storm drain infrastructure. The company works with municipalities, wastewater utility contractors and engineering firms to renew and maintain underground wastewater infrastructure, providing services and reports to address complex sewer and storm drain maintenance problems. Its team includes NASSCO-certified professionals and professional engineers.

CCTV inspectiondebris removaldye testingflow monitoringGIS mappinghydro excavationleak detectionmanhole inspectionroot removalsewer and storm drain cleaningsmoke testingSSES

Aterra Solutions is an engineering firm that partners with federal agencies, power utilities, facility owners, insurers, and municipalities to keep critical infrastructure safe, providing dam and levee engineering, flood modeling, geotechnical design, and near-real-time flood forecasting. The firm offers dam engineering and hydropower, flood modeling, mitigation and forecasting, flooding support for the nuclear industry, geotechnical and geostructural engineering, levee engineering and certification, and stormwater management.

dam safety assessmenterosion and sediment controlFEMA/USACE levee certificationfoundation designgeostructural engineeringgeotechnical investigationHydrologic and hydraulic modelingHydropower engineeringinundation mappingnear-real-time flood forecastingNPDES permitting supportPart 12D safety inspectionsphysical and computational modelingpost-Fukushima flood hazard reevaluationPotential Failure Mode Analysesprobabilistic and deterministic flood hazard modelingseepage and stability analysisspillway designstormwater management plans

CopelandBEC is a boutique building enclosure consultancy founded in 2018 by Matt Copeland. The firm provides independent roof consulting, building envelope commissioning (BECx), and litigation and expert witness support for owners, project teams, and attorneys. It is a team of building scientists, engineers, and consultants with offices in Boston, Atlanta, Minneapolis, and Raleigh, serving clients across the East and Midwest.

Building Envelope commissioningcondition assessmentconstruction administrationEnergy Modelingforensic investigationHygrothermal modelinglitigation and expert witnessmasonry restorationpeer reviewroof consultingtesting

Four Waters Engineering is a multidisciplinary consulting firm offering environmental and civil engineering services, based in Jacksonville Beach, FL. Its four main disciplines are wastewater, potable water, reclaimed water, and stormwater. The firm provides planning, analysis, feasibility studies, modeling, design, permitting, and construction administration and management, serving municipal and institutional clients across Florida, Georgia, South Carolina, and beyond.

asset managementcapital improvement programsconstruction administrationfunding assistance and financial analysisGIS database developmenthydraulic modelinglow impact development designmaster planningmeter replacement analysispump station designregulatory permittingsewer main designsite planning and grading designsite utility designSpatial analysisstormwater management designwater distribution designwater quality evaluationswater treatment system design