Ted Berry Company, Inc.

Municipal & Industrial Cleaning ~ Video Pipeline Inspections
24 HOUR EMERGENCY SERVICE

521 Federal Road, Livermore,rench Maine 04253
Office: 207-897-3348
Fax: 207-897-3627
24 Hour Emergency Pager: 207-758-8306

 
   

Trenchless Technologies - Pipebursting
for Water - Sewer - Gas - Drain - Conduit - Other


Pipe Bursting is a method of replacing old pipe with a new pipe. The new pipe can have the same or larger inner diameter. This is accomplished by pulling a hardened steel splitting head through the old pipe. The new pipe is attached to the back of the splitting head and is pulled in as the old pipe is split and expanded. The new pipe follows the path of the old one and lies in its place. There are (2) types of pipebursting Static and Pneumatic. The Ted Berry Company offers each.The newly installed pipe is usually HDPE, however recent advances in pipe materials and joints allow newly installed pipes to be PVC, Ductile Iron, Steel, or even clay. 

Download - IPBA - International Pipebursting Association Specifications .pdf
Download - Hammerhead/Earth Tool Static Pipebursting Info .pdf
Download - Hammerhead/Earth Tool Pneumatic Pipebursting Info .pdf
                   
Static Pipebursting
Step #1 - Payout Rod

 Step #2 - Attach tooling & New Pipe

Step #3 - Pull in new Pipe

 
To determine the dimensions of the pits
our technicians use the
PPI formula for launch angles.

Static Bursting Overview

1 - Payout Rod - payout the rod/chain down the existing pipe. 350 feet of  rod/chain can be pushed/pulled out in approximately one hour. Rod/chain can pass through sweeping bends in pipe systems.

2 - Attach to Tooling - Attach bursting heads and/or ductile slitter to the rod/chain end. HDPE pipe is attached to an expander which is between 20 - 29% larger than the outside diameter of the pipe being installed.

3 - Pull Back Product - During pull back, old pipe is fractured or split and pushed out into the surrounding soil. The new pipe is installed simultaneously. Pullback operation takes approximately two hours to install 350 feet of pipe, depending on soil conditions.

The Ted Berry Trenchless Technologies Team has static pipebursting equipment with 30 ton, 40 ton, 50 ton, and 80 ton capacities. With the ability to replace pipes from 2"-36".
 

Pneumatic Pipebursting

Typical pneumatic project layout for gravity sewer main with manhole exiting burst head.

   
Manhole winch                                             Launch Pit                                      The Burst Head

Manhole Exiting Burst Head with Ted Berry Company Trenchless Technologies Team HG12/20 Winch.
Manhole exiting burst heads for 4"-12" pipes are available in our Livermore, Maine location.
7 1/4" and 8" Hammers are owned and operated daily by our team.


Pneumatic Bursting Overview

Much like driving a nail pneumatic pipebursting uses an air powered hammer mounted inside of the bursting head to fracture, expand, and pull the new pipe into place. Ted Berry Company Trenchless Technologies Team owns and operates Earth Tool's Hammerhead equipment. Since we own our own tools setup and mobilization can be done in a short amount of time and at a competitive cost.

1. Ted Berry Company's HydroGuide HG12 winch is ruggedly built to meet the demands of pipe bursting. The winches are designed to facilitate extraction of burst heads through manholes to reduce the need for expensive receiving pits.

2. Excavation costs can be reduced by utilizing manhole retrieval of the burst head. (Manhole exiting is a patented process of Earth Tool Company LLC, US PATENT: US 6,299,382 B1)

3. A bursting head fitted to the pneumatic tool bursts damaged pipeline and pushes the fragments into the surrounding soil. As the tool bursts the pipe, new product of the same or larger size is pulled in. A reversible hammer allows for rear exiting of the pneumatic equipment at completion of the burst.

4. On larger or longer bursts, lubrication can increase production and the bursting distance capability by reducing pipe friction.

5. New HDPE is attached to the pneumatic pipe bursting tool and is pulled into place as the tool follows and bursts the existing line.

       The newly installed pipe is usually HDPE or High Density Polyethelyne. 
High density polyethylene plastic pipe (HDPE) delivers exceptional value, unwavering reliability and remarkable advantages over conventional types of piping. It’s today's right choice for water, drainage, fuel gas, conduit and plumbing & heating. Other reasons HDPE is a superior choice:

  • Long-term service life
  • Highly-resistant to corrosion, abrasion and chemicals
  • Strong, durable, flexible and lightweight
  • Longer-length pipe with leak-proof joints
  • Lower labor requirements for installations

There is no substitute in polyethylene pipe joining, for a correctly made fusion joint. Correctly made, polyethylene pipe joints are equally as strong as the pipe itself and have the same design life as the pipe itself.  Ted Berry Technicians are trained in butt-fusion and electro-fusions methods.


Randy Happel — Apr 01, 2008

Driving into the picturesque New England village of Northport, Maine, for the first time along its narrow, winding streets is likened to entering a storybook setting. Meticulously landscaped yards surround decoratively painted cottages — blue, yellow and pink in color and clad with ornate trim work — many of which are individually named and identified by rustic, hand-painted signs.

Located on Maine’s rugged eastern coast and home to approximately 1,500 residents, Northport is a resort community comprised mostly of seasonal dwellers. The place is so remote that the majority of Maine’s 1.4 million residents have never heard of it.

Those who make Northport their year-round residence go to great lengths to maintain the quaint integrity of this historic community, which has roots that date back to the early 1600s with the arrival of a contingent of French explorers. So it’s not surprising that when Matt Timberlake and crew arrived in town to tackle an intricate sewer line rehab project, the locals took interest.

“You have to understand the dynamics of the community to fully understand this project,” Timberlake says. “I don’t remember a time in the history of our company when a condition for accepting our proposal included a provision to educate affected residents about the process of how we would complete the project so homeowners understood exactly what was going on. The whole community got involved.”

Timberlake is vice president of the family-owned and operated Ted Berry Co., headquartered in nearby Livermore, Maine. Ted Berry Co. has been in business for more than 35 years and specializes in offering diverse methods of completing infrastructure installation and rehab projects. Timberlake had worked with the Northport Village Corp. since 2005, when Ted Berry Co. was contracted to implement an ongoing inspection of the town’s sewer system. During one of their routine inspections, Timberlake’s crew discovered a section of pipe that had become infiltrated by root growth.

Location, Location, Location
According to Timberlake, the project was a textbook case for a pipe burst. The affected sewer line originated from a residential street at its upper end, continued under four private residences, wound between two other homes and ended at a manhole located within 25 ft of the high tide mark of the Atlantic Ocean. Although the sewer discharge line was only about 200 ft in length, the beginning and ending manholes were not within view of each other. Excavation was a concern at the downstream end, given its proximity to the ocean and the highly visible Northport Yacht Club. 

“Many things told us this was not an excavation job,” Timberlake says. “There were established trees and shrubs, walkways, lawns, patios and decorations to contend with. Had we plowed a trench, we would have had to dig right alongside the foundation of a couple of these homes. The long-term effects that disturbing a foundation may cause brought a whole other set of potential issues. Trenching was just not an option.”

Timberlake and trenchless technology supervisor Shawn Ready rolled up their sleeves over dinner one night and got to work on a proposal. Both had been on the inspection team that discovered the root infiltration problem, so the two men were intimately familiar with the layout. They quickly came to a consensus on the best rehab method, but the details of the plan took a bit more time and included stipulations that were somewhat unconventional compared to proposals the two had drawn up in the past.

“Although the village corporation had a legal easement to go through individual properties in order to maintain the sewer line, their first concern was how repairing it would affect the residents,” Timberlake says. “Explaining how we would complete the project to the affected homeowners and getting their buy-in made it an easy sell to the council slated to approve the job.”

The plan Timberlake and Ready proposed included going door-to-door with a representative of the village corporation to explain to residents exactly what needed to happen and how it would be accomplished. By doing so, Timberlake and his crew immediately won over the locals.

In order to preserve the downstream manhole near the shoreline and eliminate the need to employ excavation, the plan Timberlake and Ready devised called for pneumatic pipe bursting. Although the company had completed 40 to 50 static bursts in the past, this would be the first pneumatic burst for Ready and his crew. Therefore, Ready consulted with Brian Cowles, Ted Berry’s HammerHead rep, for guidance during the pre-planning phase and to ensure his crew was well-versed in the project’s details before getting started.

“We had traveled with Hammerhead to several pneumatic jobsites over the previous couple of years, so we were very familiar with the process,” Timberlake says. “It wasn’t really anything all that new. Some of the details of the pneumatic hammer, however, were things that internally we spent a great deal of time planning in advance. And HammerHead was a tremendous help.”

Timberlake went on to explain that the project would have been very easy to complete using static equipment, but he didn’t want to take any chances removing the downhill manhole or digging that close to the shoreline.

“Protecting the integrity of the site was important to us,” Timberlake says. “Nobody from the village corporation actually told us we had to do it a certain way. But we knew the smaller footprint we left meant they would be more apt to have us back. Plus, that’s just how we do business.”

After many hours of planning followed by a day of preparation, the burst commenced at 9 a.m. on a November morning. Ready and his crew had positioned a HammerHead HG12, a 12-ton winch, on the lower end with an 8-in. hammer and a 10-in. burst head at the topside. Using the “Manhole Exit Method,” a process patented by HammerHead that eliminates one excavation at the manhole, decreased the amount of excavation necessary by 50 percent. By lunchtime, the burst had been completed and the new pipe was in place. By early afternoon, backfilling was complete and services were restored.

“The job was completed in under four hours,” Timberlake says, “witnessed by what we affectionately called the ‘advisory committee’ … made up of local residents. One of the homeowners was present when we dug the topside launch pit on his property. He had approximately 60 plastic pink flamingos randomly situated on the site. I have pictures of Shawn [Ready] repositioning each flamingo back to its original spot from the map we had created prior to initiating the burst. Most were facing east, but there were a few that faced west. We made sure that we replaced each of them in their original spots and facing the same direction.”      

Tips for Other Contractors

While proud of the work his crew performed on the Northport project, Timberlake viewed the process as just another example of how Ted Berry Co. approaches every job. And while a pneumatic burst was uncharted territory for his company, Timberlake has some valuable advice for other contractors.

“Don’t be too proud to ask for help,” he says. “Contractors are typically bad at that. We’ve been in business long enough that we know we don’t know everything. But we have connections to people who have the know-how when we are in need of technical support. Like our relationship with HammerHead, for example, they were onsite from start to finish assisting with completing our company’s first pneumatic burst.”  
Timberlake is also a firm believer in involving all interested parties in the project — not only his own crew, but the supervisors, project managers and the affected residents.

“Educate the public,” Timberlake says. “A lot of times we show up on these jobsites and the public is standing there looking at us like, ‘What the heck are you guys doing here?’ We make it a point to go out of our way to knock on doors and let people know what we are up to. I think contractors as a whole need to get better at that.”

A Job Well Done
Aside from all the planning, calculations and gratification of a job well done, it’s the approval of local residents that means the most to Timberlake.

“I understand their anxiety,” he says. “I know how I would feel if a bunch of guys in vests and hard hats were to invade my property with all this equipment and not knowing what was going to happen. We never lose sight of that. I guess the biggest compliment to come from the Northport job was when the guy who was there when we first started the burst later renamed his home ‘Sewer View Cottage.’ We laughed about it at the time, but afterward, it really sunk in just how monumental that was.”

Randy Happel is a technical writer, based in Des Moines, Iowa.

Top Photo
Ted Berry Trenchless Technologies prepare a plastic pipe for insertion into an existing sewer line on Stearns Road in Ogunquit Tuesday morning.
 

OGUNQUIT —
Residents on Stearns Road may have noticed some increased activity recently. That's because the Ogunquit Sewer District is getting ready to replace an aged sewer main there. What's interesting about the project, though, is the technology the district will use to replace the old pipe. It's called pipe-bursting and the process minimizes the need to dig up the road there to lay the new pipe.

"We're upgrading an old cast iron forced main that was placed there in 1962 or '63," said Phil Pickering, the district's Superintendent. "It's 1,600 feet. We'll upgrade the 4-inch cast iron pipe to a 6-inch high density polyethylene pipe. We'll use a pipe-bursting method, the same as we successfully used on the River Road project."

Put simply, pipe-bursting is a method in which an existing pipe is fractured and displaced while a new one is drawn in to replace it.

"We'll dig pits that are 400 feet apart," Pickering said. "We use a hydraulic hammerhead. We insert steel rods to pull the new pipe through and burst the old pipe. The rods have a cutting head that scores the old pipe. Then a bull head pushes the old pipe aside. It pulls a 400-foot length of the new pipe into the hole."

The U.S. Army Corps of Engineers' Guidelines for Pipe Bursting offers a detailed description of the method: "Typical pipe-bursting involves the insertion of a conically shaped tool (bursting head) into the old pipe," according to the Guidelines. "The head fractures the old pipe and forces its fragments into the surrounding soil. At the same time, a new pipe is pulled or pushed in behind the bursting head. The base of the bursting head is larger than the inside diameter of the old pipe to cause the fracturing and slightly larger than the outside diameter of the new pipe, to reduce friction on the new pipe and to provide space for maneuvering the pipe."

Pickering explained that the 400-foot lengths of pipe will consist of 10, 40-foot lengths that are fused together. "The pipe is all fused together, so there are no weak points," he said.

With the exception of the pits that will be dug, excavation is minimal. "It saves time, materials, and tearing up the road," said Pickering. "It's very cost-effective."

The cost of the project is $90,000, Pickering said. The Sewer District, as is often its custom, will serve as general contractor on the project overseeing the work being done. "We got price estimates from two contractors," Pickering said. "A third contractor we approached never submitted anything. [The winning bidder] is the Ted Berry Company of Livermore."

The project will start at the lighthouse and work its way up Stearns Road. Pickering estimated that the entire project would take five days, with another week or so for cleaning things up. "There will also be some minor excavation around the corners," he said.

The upgrade should eliminate the need for further upgrades for quite some time, given the quality of the new plastic pipe. "It has an estimated 100-year lifespan," Pickering said. "But it could be closer to 500 years. It's the type of material that nothing affects."

 

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