floodplain studies

Adkan Engineers is a civil engineering, land surveying, and land planning firm founded in 1983 and based in the Inland Empire, California. It serves public and private sector clients with a staff of licensed engineers and survey crews, and has completed more than 1,200 projects. The firm emphasizes principal involvement in each project and client satisfaction.

AutoCAD Civil 3Dboundary surveyscivil engineeringconstruction surveysearthwork analysiserosion & sediment controlGPS surveyingland planningland surveyingretaining wall designsite engineeringStorm Drainage & Storm water managementStorm Water Pollution Prevention Plans (SWPPPs)Street, Highway and Intersection Designtopographic surveysUtility plans and specificationswater-quality management

AULtec, Inc. is a progressive multi-disciplinary engineering firm providing professional services in public works, land development, land use and the environment. Founded in March 1994, it has established validity in Civil and Environmental Engineering, offering civil engineering, land surveying, GIS, GPS, HD scanning, railroad corridor surveys, aerial drone mapping, stormwater management and as-built surveying for Federal, State and Local Governments and the public sector.

3D scanningaerial drone mappingas-built surveyingBoundary and Topographic Surveyscivil engineeringconstruction stakeoutGISGPSland surveyingstormwater managementSubterranean Tunneling Surveyingwatershed modeling

BayLand Consultants & Designers, Inc. (BayLand) is a full service engineering and environmental firm specializing in ecological restoration and development of essential infrastructure projects located at or near the land-water interface. Established in 1995, the firm is committed to smart and sensitive development around waterways and focuses on environmental restoration and ecological uplift of wetlands, streams, ponds, lakes, rivers, bays and the ocean.

Bathymetric / Hydrographic & Topographic Surveysconstruction managementCost EstimatingDam Safety & Dam Breach AnalysisdesignEngineering and Environmental Assessmentfeasibility studiesforest stand delineationsGeomorphic AssessmentsGIS & Imagery Analysismodelingmonitoringnatural resource inventoriespermittingRare, Threatened & Endangered Species SurveysSediment Sampling & Analysiswater quality monitoringWatershed Assessmentswetland delineations

Heneghan Associates (HA) is a multi-disciplined civil engineering and land surveying firm founded in 1986, providing professional services to public and private sector clients. It has more than 35 employees with offices in Columbia, Jerseyville, Maryville, and Mt. Vernon, Illinois and Arnold, Missouri. Services include transportation engineering, land planning/development, environmental engineering (water, wastewater, storm water), surveying, and funding assistance.

civil engineeringconservation engineeringconstruction administrationconstruction observationconstruction stakingdesign-bid-builddesign-builddesign-build-financedetention/retention basin designdrainage studiesenvironmental permittinggrant and funding assistancehydrologic/hydraulic modelingland surveyingNPDES permittingstorm sewer and culvert designtreasury servicesutility billing