Our communities lie at the heart of all we do. We also offer construction services , surveying , right-of-way acquisition, and materials testing . The firm was ranked by Engineering News Record as Midwest Design Firm of the Year in 2016 and currently ranked as one of the Top 150 in the U.S. and the 9th largest in the Midwestern United States. The fact that we are a private, family-owned company enables us to provide far superior customer service than our larger publicly traded competitors. Find out what works well at DLZ CORPORATION from the people who know best. Subsurface Exploration AEP Racine Locks and Dam, Keller II Water Tower Cleveland Water Department, I-55 and Lake Shore Drive Interchange Reconstruction, Chicago, Illinois, Topeka Legacy TIF Improvements (Project C and D), Hospital Transportation Improvements, City of Marquette, Michigan, GLWA Program Delivery Program Management Services, Indiana American Water Company (IAWC) Water Main Design, Columbus Airport I-670 and International Gateway Exchange, General Engineering Services X – Cleveland Water Department, Gerald Ford International Airport, Grand Rapids, Michigan, Lake Shawnee Dam and Spillway Replacement, Tenaris Pipe Mill Equipment Installation for Brahma Group, Carmel Roundabout Design at 116th and Hazel Dell, Schoonover Lake Dam Rehabilitation, City of Lima, New Courts Facility, Van Buren County, Michigan, City of Parma Splash Pad, Ridgewood Lake Park, Oakland County Water Resources Commissioner, Asset Management, Traffic Data Collection for the State of Illinois, Lake White Reservoir Evaluations, Design and Construction, South Haven Stormwater Rehabilitation and Flood Mitigation Projects, OKI Freeway and Arterial Locations Traffic Data Collection, Caldwell Youth Sports Complex, Hammond, Indiana, Levee Accreditation for the Village of Roseville, NICTD Double Track Northwest, Environmental Due Diligence, CSO 6 and 7 (Storage Tank and Pump Station Renovation), Hulman Field Master Plan for Space Utilization, Tappan Dam IRRM Automated Data Acquisition System, Michigan City Naval Armory Steam Boiler Replacement, Former Michigan State Fairgrounds, Detroit, Lakeland Regional Sewer District Wastewater Treatment Plant, Lakeland Regional Sewer District, Indiana, Pulaski Park Improvements, Hammond, Indiana, Richfield Water Tower Cleveland Water Department, Roselle Road and Jane Addams Memorial Tollway Reconstruction, ALCOSAN Preliminary Planning Phases I, II, and III, Indianapolis Airport Authority Demolition of Old Terminal, Olive and Sample Street Road Reconstruction and Bridge Rehabilitation, Statler Hilton Hotel Demolition and Asbestos Abatement, Port of Monroe Marine Terminal, Monroe, Michigan, USPS Bloomington Finance Station Alternate Quarters Renovation, ALCOSAN Monongahela River Subaqueous Interceptor Cleaning Inspection, MDEQ National Gypsum Reef Restoration, Michigan, Southern Beltway Turnpike Road Improvements, USPS Cardiss Collins (Chicago) P&DC HVAC System Modifications, St. Francis Beech Grove Hospital Demolition, Purdue Extension and Soil & Water Conservation District Facility, I-275 Pavement Rehabilitation for Ohio River Bridge, McDonald Country Store, Fire Site PFAS Investigation, Michigan, Van Etten Lake PFAS Foam Removal, Michigan, Planning Study and Design for KY 15, Kentucky, South Calumet District Streetscape and Gateway, Drinking Water Wells PFAS Contamination, Wurtsmith AFB, US 421 – Leestown Road, Improvement Strategy and Design, CCTV and NASSCO into GIS Geodatabase, Genesee County, East 140th Street Consolidation and Relief Sewer, City of Port Huron ADA Self-Evaluation Study and Transition Plan, Water/Wastewater Utility Expansion Master Planning, OCWRC - Residential Equivalent Unit (REU) Study, Oakland County, Rohrman Park Ballfield Complex Master Plan, US 27 over CSX Railroad, Bridge Replacement, Crawford Park Connector for Mishawaka Long-Term Control Plan, GIS and Water Distribution System Hydraulic Model, Royal Oak, New Fire Station No.