616 Oberlin

616 Oberlin is a new project in Raleigh that when complete, will provide 207 residential units on prime real estate within walking distance of Cameron Village. CCI was selected as the site contractor for the project and is responsible for all erosion control, earthwork, site utilities, asphalt paving, curb & gutter, concrete sidewalks and paving, striping, signage and traffic control, including a multi-phased pedestrian control plan. Due to the site constraints and the amount of cast-in-place foundation walls splitting footprint of the building, the grading on this project had to be performed in multiple phases. An initial mass excavation produced approximately 20,000 CY of material – half of which was exported, while the other half was stockpiled onsite to eliminate import costs. The stockpile material will serve as backfill for the large foundation walls once complete. In order to provide a safe excavation for the concrete foundations to be installed, approximately 1400 SF of temporary shoring via a driven bar system was utilized on the northern boundary of the site. The water and sewer utilities serving the project required a total of 3 taps in Oberlin Road and another 3 in Daniels Street. Also associated with this project is an offsite sewer replacement on Smallwood Drive which will require both traffic control and by-pass pumping operations. Key subcontractors include Certified Concrete Construction, Gelder & Associates, Southeastern Erosion Control, Sides Seeding, Puryear Transport, Morrison Engineers and Boone Masonry.

Crabtree Creek PS Screw Repair

While results are always important, safety is paramount and that was certainly the case on this repair for the City of Raleigh. CCI was awarded the contract to replace missing and/or damaged flights & shrouds on several large screw pumps at the City’s Crabtree Creek Lift Station. Confined space, ventilation and access / egress were all issues that had to be addressed and constantly monitored to ensure worker safety. With the station on full sewer bypass, repairs were able to be made on four of the five 70 foot long screws in just 7 days. Pump station capacity was increased from 28MGD to 33MGD after work was complete.

The Gramercy

Scope of work for this project included mass excavation and grading, storm drain, water & sewer. The Gramercy is a new mixed-use development located on Glenwood South in Downtown Raleigh. The project provided 203 residential units with ground floor retail and restaurant space as well as a cast-in-place concrete parking deck. With the building’s design including basement parking, CCI was required to perform mass excavation and export of approximately 8,300 CY of material. Due to the building’s proximity to Glenwood Avenue, North Street and Boylan Avenue surrounding it, the excavation required an engineered shoring system to be installed. A small portion of this was achieved using the “beam and lag” method, but the remaining portions were shored using large precast blocks. CCI installed approximately 345 of the 2x2x8’ concrete blocks onsite. All of the utility work on this project involved working in the busy downtown streets, making production very slow and putting a premium on safety. Key subcontractors included Summit Coastal, Locklear Boring, Puryear Transport and Razorback Boring.

Garner SS Repair

This project was an emergency sewer replacement completed for the City of Raleigh. It was discovered through CCTV that a 235’ section of 8” DIP in the White Oak Commons shopping center in Garner was failing and needed immediate replacement. We worked with the City through several replacement options, but ultimately landed on a form of pipe bursting as the most cost effective. The specific method was “static pipe bursting” utilizing a cartridge-loaded restrained joint PVC pipe and was the first installation of its kind performed in Raleigh. This replacement option limited the footprint of our construction to 2 pits on the upstream and downstream end of the sewer line. This greatly reduced not only costs associated with traditional excavation and trenching, but also the subsequent asphalt removal and replacement. This was particularly critical in this application as the replacement occurred underneath an active parking lot. Pipe bursting was complete in one day and entire job took 6 days to complete.

Durham Unscheduled Pipeline Repair

This project was an emergency sewer replacement for the City of Durham completed under our “Unscheduled Pipeline Repair Contract.” It was discovered that the decades old 30” reinforced concrete pipe in one of Durham’s main sewer outfalls was failing and needed replacement ASAP. We mobilized within 3 weeks of notice and replaced approximately 1,200 LF of the concrete pipe with 30” SDR-21 PVC. The proximity of this portion of outfall to the Triangle Wastewater Treatment Plant meant multiple lines converging with high flows and required 3 by-pass setups for the duration of our work. Due to the location of the outfall in a low lying creek-side area also entailed work in poor soils and the need for dewatering measures.

SE Pressure Zone Elevated Tank

This project included full site development and utility work for new 1.5MG elevated storage tank in Durham. Work included demolition and abatement of existing house on tank site, clearing & grubbing, erosion control, earthwork, drainage and sidewalks. CCI was also responsible for the supply and overflow lines feeding the new tank. The supply line consisted of over 300 LF of factory restrained 16” and 24” DIP including butterfly valves and other appurtenances. The overflow drain line was comprised of 16” and 18” RCP and DIP. Key subcontractors included Advanced Concrete, Cecil Holcomb Renovations, Certified Concrete Construction, Nehrenz Enterprises and Southeastern Erosion Control.

Disinfection by Product Compliance

This job for Cape Fear Public Utility Authority involves work at 2 of their elevated storage tank sites in Wilmington. Both of the 1.5 million gallon Dawson Street and 17th Street tanks are experiencing the build-up of THMs during the hot summer months. To combat this problem, mixers with floating spray nozzles are being installed inside the actual tanks. To accommodate the new mechanical equipment on and inside the tanks, substantial electrical and SCADA work is also required. New precast concrete buildings were set at each site to house control panels, pull boxes and motor starters. Key subcontractors include Coastline Electric, Medora Corporation, Revere Controls, JENNS LLC, Southeastern Erosion Control, Smith-Carolina Corp and Summit Coastal.