QUADRANT CONSULTANTS INC. Look to Quadrant for experience, capability, responsiveness and insight for your infrastructure project. Since 1979, Quadrant Consultants Inc. has been a leading consulting firm for engineering, planning, environmental and aviation services for transportation, utility infra...

Ellington Field Master Plan Quadrant prepared the environmental parts of the Master Plan for Ellington Field, in Houston, Texas. Quadrant Consultants assessed aviation trends at other Houston area airports, including a comparison of hangar costs, flight school activity and general aviation growth pr...

Environmental Services Full environmental planning services. Quadrant's experienced staff includes environmental scientists who understand both public works projects and the environment, and know how to make clients' projects environmentally friendly while achieving their goals. We have substantial ...

US 59 from SH 99 to SH 6 Environmental Assessment Environmental assessment for widening US 59 from four to ten lanes between SH 6 and SH 99 (Grand Parkway). Quadrant Consultants prepared an environmental assessment for the proposed widening of US 59 from SH 99 (Grand Parkway) to SH 6 from a 4-lane d...

Aviation Services Airport Masterplanning & Heliport Design Quadrant Consultants specializes in planning, environmental and design of airports and heliports. We are experts in runway and taxiway design, aviation noise modeling, airport master plans, land use and noise compatibility studies, and a...