Category: Featured Projects

15Mar 2017

Clarksville Manhole Inflow and Infiltration Sealing

By Robert Armstead
Inflow and Infiltration Sealing

Clarksville Lateral Line and Manhole Inflow and Infiltration Sealing

The Town of Clarksville in Indiana noticed abnormally high flow rates at a pump station and its WWTP. The longer pump operation hours and a higher volume of water needing to be pumped and treated leading to high costs and concerns over the capacity of their current equipment.   Ground Works Solutions (GWS) was brought in to address the problem utilizing a polymer injection process for Inflow and Infiltration Sealing. 


The Town of Clarksville in Indiana was the first settlement north of the Ohio River in the United States. Like many towns its age, it has to maintain a blend of new and aging infrastructure to support its population growth and demands of a booming commercial retail industry. 

In 2007, around the time that new commercial development that had…

6Aug 2016

Inflow and Infiltration Trenchless Repair

By Robert Armstead

This new video highlights three projects where the URETEK polymer injection process is used to trenchlessly seal and repair lateral lines and manholes from inflow and infiltration (I/I). The application is quick and cost-effective and provides effective I/I mitigation.


5Aug 2016

Ground Works Featured in Trenchless Technology Article

By Robert Armstead

In the July 2016 issue of Trenchless Technology, Ground Works Solutions’ CFO, Aaron Hall, writes about the successful rehabilitation of a box culvert in Pensacola, Florida. In the piece, Aaron discusses the problems created by historic flooding in Escambia County and how Ground Works Solutions was able to lift a box culvert structure by two feet in order to restore its long-term viability.

You can read about the scope of the project and the challenges in the article here.

18Jul 2016

Manhole Degradation Repair

By Robert Armstead

The City of Florence, in Kentucky, recently called upon Ground Works Solutions to repair five, failing sanitary manholes in their system, mainly due to a high concentration of hydrogen sulfide, which was degrading the precast walls of the manholes. Since the City of Florence had never used this application before, they were interested in this test to see if the quality was acceptable for additional future repairs.

Ground Works Solutions sealed all leaks and installed a one-inch thick, structural, centrifugally cast, cement liner for the full depth of the five manholes. The liner also included ConShield, a concrete additive to resist hydrogen sulfide corrosion. Thiobacyllus bacteria forms on the walls of sanitary structures due to the presence of hydrogen sulfide. This bacteria produces sulfuric acid that…

4Apr 2013

Sustaining an Aging Infrastructure

By Robert Armstead

Stabilizing I-80 in Mahoning County, Ohio


LOCATION:  I-80, Mahoning County, Ohio


ODOT District 4 had been experiencing unstable road panels for over a year on a section of I-80 that is one the busiest sections of interstate traffic in America. The panels began to settle even more over the recent winter months. ODOT tried mudjacking them using cementitious grout, with limited improvement which was only temporary. The cemenitious grout failed. As water entered the pavement system and mixed with the pulverized grout, the constant pounding of the traffic pumped the slurry mix out from the control joints and stained the concrete pavement.

ODOT was familiar with URETEK USA from a recent training seminar and the Transportation Research Board (TRB) convention. After discussion with one of the ODOT central office engineers, it was determined that Deep Injection process was the viable solution for this project.

Factors for Consideration:

The interstate consists of 14” thick concrete panels,…