Underground Utilities

Grant Clarendon OSB Plant

850k

cubic yards of excavation

200

acre site development

150k

tons of base stone placed

Alcolu, SC

This was a 200-Acre Site Development for a new OSB Manufacturing Facility. Morgan Corp., with the assistance of subcontractors, installed a 4-stage dewatering system to perform a 45-foot excavation, of which 40 feet were below the ground water table.

This project involved a total of 850,000 cubic yards of excavation. Morgan Corp. placed 150,000 tons of base stone, 8,000 linear feet of storm drainage (18”-42”), and 60,000 linear feet of silt fence. 16,000 linear feet of waterline (4”-16”) were installed. Installation of an on-site septic system included 2,000 linear feet of sanitary sewer lines, along with three lift stations. Morgan Corp.’s sub grade treatment utilized 35,000 square yards of soil cement.

Notable Achievements

Morgan Corp. was able to complete this project, which was contracted for nine months, in less than eight months.

Seminole Road Landfill, Phase 3, Unit 1

1.8M

cubic yards of earthwork

5k

linear feet of leachate piping

40k

cubic yards of minus 5 clay liner

3k

linear feet of geogrid reinfoced earth slope

Decatur, GA

This project entailed the construction of a new 40-acre Subtitle “D” landfill cell with a double 60-mil HDPE liner system.

Morgan Corp. placed two geocomposite layers and storm water tarp (200 overall acres of geosynthetics), 5,000 linear feet of leachate piping, and a 250,000 gallon leachate storage tank. Approximately 1,800,000 cubic yards were excavated, of which 176,000 cubic yards were mass rock, which was drilled and shot. Our workers also installed 40,000 cubic yards of minus 5 clay liner, 225,000 tons of protective cover sand, and a unique requirement: 3,000 linear feet of geogrid reinforced earth slope (60-80 feet in height). Morgan Corp. addressed a number of infrastructure improvements on this job and handled the clearing and erosion control of 250 acres.

Of Note

This project had significant overruns of rock excavation. In addition, Morgan Corp. received several million dollars of change orders resulting from an increase in scope. Despite these challenges, the project came in on schedule.