Conduit Projects

Fixing Concrete Filled Conduits with CIP-Conduit

Conduit pipes are typically encased in concrete. Encasing a conduit in concrete will provide strength to the existing asset and will provide added protection to the conduit from unexpected external load and movement, reducing the risk of damage and the need for repairs. It also aids in protecting the conduits against liquid infiltration. A customer in Arizona was having some problems with their electrical conduits. After televising, the issue was quite clear - during the encasement process, the conduits had separated, allowing concrete to fill the conduit. To avoid breaking up the entire concrete encasement and start the project over, a Flow-Liner Certified Installer was contacted.

The Flow-Liner Certified Installer's first and most challenging objective was removing ten feet of cement from the conduit with a robotic cutter in a location that was over 100 feet in from the access point. Once the conduit was cleared and cleaned, the CIP-Conduit process could begin. The installer successfully lined approximately 140 feet of conduit -leaving them with a happy customer. CIP-Conduit® (Cured-In-Place Conduit) can be designed and installed according to your specifications and needs for underground conduits. A pre-site evaluation may be performed by one of our trained and Certified Installers. Once the necessary information is gathered, it is submitted to our Technical Design Division. Lining options will be submitted for customer review and approval.

Conduit Lining at the White House

Flow-Liner® Utilities was recommended for The White House project by one of the largest government contractors in the US. The Certified Flow-Liner® Utilities Installer had worked with the General Contractor just recently at a US Naval base relining underground conduits. The White House discovered water infiltration in their telecommunication conduits under the West Wing. CIP-Conduit® liner was efficiently installed by a Certified Installer, in one day- no demolition or excavation needed! More information and pictures can be found here.

Conduit Rehab at GEneral motors global tech center

The General Motors Global Technical Center is globally recognized as the preeminent innovation center for automotive engineering, design, and advanced technology. Here, the world’s best designers and engineers come together to help redefine the future of transportation. The 710-acre campus in Southeast Michigan is home to over 21,000 employees. The Tech Center opened in 1956 and is currently recognized as a National Historic Landmark.
A Certified Flow-Liner Installer was contacted to rehabilitate existing conduits at the General Motors Global Technical Center. First, a jetter was used to clean three conduit pipes, one 2" in diameter, two 4" in diameter, and each approximately 200' in length. Next, the CIP-conduit liner was installed, successfully navigating bends along the way. No excavation or demolition necessary for this CIP-Conduit project!

Flow-Liner's CIP-Conduit at Cape Canaveral

Cape Canaveral is located on the east coast of Florida in a region known as Space Coast. The Cape Canaveral Space Force Station and the Kennedy Space Center are both located in this region and are well-known launch sites for many US spacecrafts. A Certified Flow-Liner installer was contacted to utilize CIP-Conduit (Cured-in-Place-Conduit) at Poseidon Wharf East along Port Canaveral.
A contractor local to the Space Coast region discovered several 4" underground conduits in two separate duct banks were showing signs of deterioration. Traditional dig-and-replace would require the costly and inconvenient demolition of the duct banks and a large portion of the wharf itself. With CIP-Conduit, only small access pits were required to remedy this problem. The project entailed the rehabilitation of 12 conduits approximately 60 feet in length each. The local contractor prepared the small access pits and the ducts for the Flow-Liner installation crews. With two installers per crew, six conduits were successfully lined per day, totaling only two days of the Flow-Liner CIP-Conduit installers on site.

CIP-Conduit at Naval Station Norfolk

Naval Station Norfolk is a United States Navy base in Norfolk, Virginia. It supports naval forces in the United States Fleet Forces Command, those operating in the Atlantic Ocean, Mediterranean Sea, and the Indian Ocean. The installation occupies about 4 miles of waterfront space and 11 miles of pier. It is the world's largest naval station, with the largest concentration of U.S. Navy forces. General Contractor Blackwater Electric discovered the naval station had a need for trenchless technology and contacted a Flow-Liner Certified Installer. The contractor had found issues with stringing the naval station's underground electrical conduit lines and discovered the conduits were too congested to work in. The Certified Flow-Liner Installer performed a thorough cleaning procedure to open up the conduits. After the lines were cleaned and opened back up, approximately 3000 feet of conduits were lined using Flow-Liner's CIP-Conduit® inversion method. Both Blackwater Electric and Naval Station Norfolk were pleased with the use of Flow-Liner's trenchless technology, and happy to save time and money with pipe lining.