exterior of Halff Fort Smith, Arkansas office location with variety of infrastructure and engineering services

Our Services

closeup of construction workers on SH 334 Bridge

Construction Services

Full-service construction engineering, preconstruction planning, Construction Engineering & Inspection (CEI), scheduling, design & construction, Quality Assurance/Quality Control (QA/QC), contract administration.

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crew members wading in water performing environmental constraints analysis

Environmental Services

National Environmental Policy Act (NEPA) documentation, wetland delineation, Section 404 / 10 permitting and mitigation, cultural resources management, wildlife habitat assessments, threatened / endangered species surveys & relocation, GIS geodatabase development, environmental constraints mapping / analysis, oil & gas pipeline permitting, electric transmission line routing studies, due diligence, remediation & regulatory closures, comprehensive asbestos consulting, stormwater compliance, public involvement.

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Halff Geospatial service truck with gear

Geospatial Services

Manned & unmanned aerial system (UAS or drone) photogrammetry and lidar, mobile lidar & imaging, terrestrial lidar (High-Definition 3D Laser Scanning), scan-to-BIM, 4K HD Video, broadband / fiber, noise validation analysis (UAS/Drone Based), 3D Visualization.

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Land Development Services

Land use and development phasing, master plan implementation, site improvements, landscape architect / construction consultation, schematic design, patting, infrastructure development / drainage, entitlements and permitting services, utility design and coordination, special financing districts / MUD / PUD / CDD / TIF / PID, sustainable design / low impact / ESG, master drainage plans, lift station design.

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Auditorium with lights and chairs at Brownvsille PUB New Annex Building

MEP Engineering Services

Mechanical and air systems design, plumbing system design, Information and Communication Technology (ICT), power system design, engineering studies, cybersecurity, lighting system design, LEED and Renewable Design.

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Planning & Landscape Architecture Services

Active transportation, comprehensive planning, corridor and streetscape, development codes and ordinances, downtown planning, Low Impact Development (LID) / Green Infrastructure, master planned communities, neighborhood and special area planning, parks, recreation and open spaces, planned unit developments, sport facilities and feasibility studies, trails and greenspace planning, urban design and placemaking, Capital Improvement Programming.

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Transportation Services

Intelligent Transportation Systems (ITS), local & regional transportation planning, feasibility & preliminary engineering, visualization, roadway & drainage design, TCP / maintenance of traffic, multimodal & transit planning & design, safety improvements, bicycle, pedestrian and active transportation planning & design.

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Halff surveyor setting up survey and lidar equipment

Surveying Services

Boundary / easements / abstract research, lidar, terrestrial laser scanning, bathymetry, hydrography, drone mounted lidar, UAV, UAS, mobile mapping, corridor mapping, photogrammetry, 3D modeling, Revit modeling, architectural exhibits, structural exhibits, 2D floor plans, floor elevations, construction / volume calculations, topographic / design, tree surveys, BOMA calculations & exhibits, scan-to-BIM, utility mapping, VDC.

 

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SUE field crew workers outside on Transportation project

SUE/Utility Coordination Services

2D and 3D SUE quality levels A-D, alignment & right of way (ROW) staking, utility adjustment monitoring & verification, utility engineering & relocation design.

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Bull Shoals wastewater treatment clarifier

Water Services

Water / wastewater treatment, instrumentation, control and SCADA, facility design, GIS asset management, pumping facilities and lift stations, elevated and ground storage tanks, hydrologic & hydraulic (H&H) and flood risk modeling, equipment & pump selection, water transmission & distribution, floodplain management, studies & mapping, flood warning systems, stream restoration planning & design, flood hazard mitigation drainage & basin design, water quality, stormwater pollution prevention plans (SWP3s).

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