For 30 years, Dynotec has been a top SBE/DBE/MBE firm … consistently at the industry forefront in providing innovative, efficient, and environmentally-conscious solutions in civil and water/wastewater design engineering. Our company and our design professionals are routinely lauded for our performance on these critical projects for municipalities and state agencies. With 30+ employees across four offices, Dynotec has the built-in capacity and talent to manage your project’s needs.
SITE/CIVIL & WATER RESOURCES ENGINEERING
Portfolio
Below are just a few example projects that highlight our broad range of services and expertise.
SANITARY SEWER LINES AND MANHOLES DESIGN-BUILD
NAVFAC – Great Lakes Naval Station, Mainside (Chicago, IL)
As the Engineer of Record, Dynotec provided design services for this Design-Build MATOC contract to install a new gravity sanitary sewer to replace approximately 3,660 linear feet of existing gravity sewer mains and structures. The existing gravity sewer main replaced consists of 15-inch (3,600 LF) and 12-inch (60 LF) diameter mains. Dynotec reviewed the CCTV reports and determined the methodology to replace/rehabilitate the existing manhole and pipes. We prepared and submitted the Storm Water Pollution Prevention Plan (SPPP) for NOI permits per the Illinois Department of Environmental Protection Agency standard. Design Completion: 2019.
DUBLIN ROAD WATER PLANT SITE IMPROVEMENTS – PARKING LOT, NEW EMPLOYEE ENTRANCE AND GREEN INFRASTRUCTURE
City of Columbus, Dept. of Public Utilities, Division of Water
Dynotec performed extensive site modifications to accommodate the needed capacity improvements, including a new 600 LF of 12- new potable waterline, access roads, parking lots, guardrail, retaining walls, headwalls, sidewalks, bio-retention ponds, bio-swales, storm sewer piping, grading and fencing. A 6-inch sanitary sewer, 900 feet long, was also designed to accommodate the contractors’ trailer complex and the sludge pump station building. Dynotec was also responsible for designing an award winning 141-capacity employee concrete parking lot to support the construction of a new building expansion. Features of this parking lot included Green Infrastructure elements such as permeable pavements, bio-swales, and rain gardens. Design Completed: 2012. Construction Cost: $19.2M.
MORSE ROAD EMERGENCY REPAIR OF 48-INCH WATER PIPE
City of Columbus, Dept. of Public Utilities, Division of Water
Under a General Engineering Services contract, Dynotec was called into emergency action after a contractor sawcut through the top of an existing 48-inch concrete cylinder pipe in a traffic lane of Morse Road, a high-traffic, east-west corridor in Columbus. The 48-inch pipe was installed in 1954 and the subsequent Morse Road expansion and lowering caused a very low cover situation for the pipe – approximately 14 inches at the location of the sawcut. The repair included removing the concrete from the area around the cut, welding a repair plate over the cut, then splicing the longitudinal and circumferential reinforcing bars before encasing in concrete. Design Completed: Aug. 2021.
ATWOOD TERRACE AREA WATER LINE IMPROVEMENTS
City of Columbus, Dept. of Public Utilities, Division of Water
As the prime consultant, Dynotec led the design and topographic survey for development of base maps of 10,005 LF of 8-inch and 6-inch water line improvements. This work included replacement of fire hydrants, transfer of all services, and abandonment of the existing 4” water main in the area. Establishment of existing right-of-way lines wasa critical task as the lead consultant. And Dynotec followed the “Design Guidelines for Water System Capital Improvement Projects (Version 2018-06-04).” Design Completed: 2019.
LIVINGSTON AVENUE EMERGENCY CULVERT REPAIR
City of Columbus, Dept. of Public Utilities, Division of Water
Under our”General Engineering Services – Water Distribution 2020″ contract with the City of Columbus-DPU-DOW, Dynotec provided immediate response for the design to repair an existing 5’ x 14’ culvert beneath East Livingston Avenue that was breached during a DOW field event to lower the existing water line at the culvert. This emergency turnaround project was completed in less than six weeks from Notice to Proceed to Final Plans signing. This project featured structural design for the replacement of the culvert sides and top, pavement design for the restoration of the roadway, drainage design for the continuance of proper flow, erosion control design for maintaining facilities during construction, maintenance of traffic plans to ensure safe work zone during repaid and water line design to properly lower and encase the water main. Design Completed: March 2020. Construction Cost: $175K.
SOUTHERN OHIO CORRECTIONAL FACILITY – SANITARY LINE AND WASTEWATER TREATMENT PLANT REHABILITATION
Ohio Dept. of Rehabilitation & Correction / Ohio Facilities Construction Commission
Southern Ohio Correctional Facility (SOCF) is an adult maximum-security prison facility constructed in 1972 and comprised of approximately 37 buildings on 1,625 acres. The existing concrete sanitary lines were deteriorating and the WWTP was experiencing excessive inflow and/or infiltration. Dynotec was selected by the ODNR (via the OFCC) to generate an engineering report, and the detailed “Upgrade Study and Design” scope consisted of two main tasks: 1) Televising of the existing sanitary sewer system and 2) Flow Monitoring of the existing sanitary sewer system. Design Completed: March 2018. Total Project Budget: $2.75M.
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