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Articles by Jeff Davis

Pipe Relining fiber-reinforced CIPP liner
Improved Wet-Out of Fiber-Reinforced CIPP Liners

The cured-in-place pipe (CIPP) industry will celebrate its 50th anniversary in 2021. During that time, the industry has ...

September 30, 2020
Directional Drilling mud recycling in New York
Contractor Puts Creative Mud Recycling Plan into Action on Electrical...

Continuous bore shots of 800 ft in the sandy soils of Long Island, New York, and all the machinery needed to be taken of...

September 29, 2020
Canada inline inspection
Calgary Locates Leaks, Avoids Feedermain Failure with Inline Inspections

To date, the City of Calgary has inspected and developed a condition baseline for nearly 25 per cent of its feedermain n...

September 23, 2020
Canada grout selection
Grout Selection & the Design and Performance of Slip-Liners

The use of slip-liners is now routine to rehabilitate corrugated steel culverts under road and rail embankments that hav...

September 15, 2020
Pipe Bursting pipe bursting vs. open cut
Pipe Bursting vs. Open-Cut Excavation – Comparison When Replacing Water...

As cities begin to embark on large scale water main replacement programs, performing a simple analysis such as the excav...

September 14, 2020
Directional Drilling Ditch Witch hdd rig
Five Tips for HDD Rig Maintenance

What may seem to be tedious, maintenance tasks are important to ensuring the overall success on the jobsite....

September 11, 2020
Canada short-term burst pressure testing
Burst Pressure Testing of CIPP Circular Woven Liners – Effect...

In a recent feature article in Trenchless Technology Canada by Dr. Mark Knight [1], reference was made to a City of Toro...

September 10, 2020
International GRP panel lining in Bogota
GRP Panel Lining in Bogotá, Colombia

Bogotá, Columbia, has become the political, economic, administrative and industrial center of Columbia over the p...

September 8, 2020
Pipe Relining UV CIPP relining in Guam
UV CIPP Relining in Guam

Guam is a tropical island paradise located in Micronesia in the Western Pacific Ocean. It is a beautiful place to visit,...

September 1, 2020
Last Word
Last Word – The Power of One and the Promise...

One and half centuries ago, a rancher, naturalist, explorer, environmental philosopher, writer and conservationist named...

August 28, 2020
Manhole Rehab manhole rehab
Aging Infrastructure & Manhole Rehab in Massachusetts

New England, being one of the first parts of the United States settled, has some of the oldest infrastructure. This is n...

August 27, 2020
Tech Forum trench and excavator
Tech Forum -Trenching and Excavation Procedures and Safety

Did you know that the fatality rate for excavation work is 112 percent higher than general construction work? There&rsqu...

August 24, 2020
Manhole Rehab manhole inspection
Inspection Reveals Proven Results for Manhole Rehab with Epoxy Coatings

As the nation’s sewer collection systems continue to age, the manhole rehab industry has matured and become common...

August 21, 2020
Condition Assessment atlantic-wincan-1-150x150
Atlantic, Iowa Opts to Tackle Cleaning, Assessment In-house

Atlantic, Iowa’s vibrant, historic downtown and community traditions keep the past close, but that has not stopped...

August 20, 2020
Pipe Inspection/Evaluation Echologics
A Sound Approach to Evaluating NRW Loss and Aging Pipelines

As water distribution infrastructure ages, the potential for leaks grows and the need for condition-driven asset managem...

August 20, 2020
Pipe Relining The Town of Ledyard faced aging infrastructure that needed to be addressed
Repairing and Lining vs. Replacing Pipe

Located along the Thames River in Connecticut, the Town of Ledyard faced aging infrastructure that needed to be addresse...

August 18, 2020
Pipe Relining Suez SIPP
Spray-in-Place Pipe Rehabilitation Saves Time and Money for Georgia City

Municipalities around the United States share a common problem: Their water infrastructure is aging and presents an incr...

August 14, 2020
Pipe Inspection/Evaluation ast-map-1
Not Your Grandfather’s Underground Mapmaking

Could they trust the maps? Were they accurate? Maybe. Complete? Maybe. No one knew for sure — a bad position to be...

August 13, 2020
Directional Drilling hdd fluid engineer
A Tale of Two Drills: Why a Mud Engineer Is...

As many of you know, our industry is typically required to have a qualified drilling fluid engineer on site. Their prima...

August 11, 2020
Directional Drilling Geonex Horizontal Hammer Boring
Product Profile – Solving Difficult ‘Hard’ Geology Projects

For trenchless contractors, it is not just the hardness, but rather the varying densities and unpredictable inconsistenc...

August 3, 2020