Replacement of Interceptor A

3/8 - 3/22, 2018 BIWEEKLY PROGRESS

• Continue installing pipe from manhole (MH) A-60 to New Second Street
• Tie in 8” Spur line @ Tookany Creek Parkway & pond area to MH A-41
• Tie in 18” Spur line @ Tookany Creek Parkway and Jenkintown Road to new MH A-46
• Tie in 8” Spur line @ Tookany Creek Parkway and Jenkintown Road to MH A-45
• Tie in 8” Spur line @ Tookany Creek Parkway and Jenkintown Road to MH A-47
• Tie in 15” Spur line @ Boy Scout Camp to MH A-36
• Pour channels in MH#’s A-40, A-44, A-45, A-46, A-48, A-51, A-54
• Continue air & vacuum testing


March 6, 2018 - Controlled drilling and blasting for the Sanitary Sewer Interceptor A Project has been scheduled on Tuesday, March 6  between 11AM and 1PM west of New Second Street on Tookany Creek Parkway.  See below for more information on controlled blasting and the sanitary sewer system project.


Feb 8, 2018 - Controlled drilling and blasting for the Sanitary Sewer Interceptor A Project has been scheduled on Tuesday, Feb 13 near Carter Lane and Tookany Creek Parkway.  See below for more information on controlled blasting and the sanitary sewer system project.

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Third Controlled Drilling/Blasting on Thursday, Feb 1 between 11AM & 1PM

The third controlled drilling and blasting for the Sanitary Sewer Interceptor A Project that was delayed by rain has been tentatively rescheduled on Thursday, Feb 1. The work will occur behind the Fire Training Center along Tookany Creek Parkway and may include areas within the creek in Cheltenham.

Very little vibration or concussion was reported during the first two controlled blastings, which successfully fractured massive rock formations that had resisted mechanical measures including heavy duty quarry/mining equipment. For the third blasting, the contractor will again comply with all of the requirements under the permits of both the Cheltenham Township Fire Marshal and the Pennsylvania Department of Environmental Protection, Bureau of Mining. See information below for more details on the drilling and blasting.

January 19 19, 2018 - Third Controlled Drilling/Blasting Scheduled on Jan 23 DELAYED DUE TO RAIN FORECAST.

A third controlled drilling & blasting for the Sanitary Sewer Interceptor A Project has been scheduled on Tuesday, Jan 23.The work will occur behind the Fire Training Center along Tookany Creek Parkway and may include areas within the creek in Cheltenham.

Very little vibration or concussion was discernible during the first two controlled blastings, which successfully fractured massive rock formations that had resisted mechanical measures including heavy duty quarry/mining equipment. For the third blasting, the contractor must again comply with all of the requirements under the permits of both the Cheltenham Township Fire Marshal and the Pennsylvania Department of Environmental Protection, Bureau of Mining.A third controlled drilling & blasting for the Sanitary Sewer Interceptor A Project has been scheduled on Tuesday, Jan 23.   See more information about drilling and blasting below.


January 17, 2018 - The controlled drilling & blasting scheduled on Jan 16 was DELAYED due to inclement weather.  It has been rescheduled for Thursday, Jan 18 between 11AM and Noon.

January 11, 2018 - Second Controlled Drilling & Blasting Scheduled for the Sanitary Sewer Interceptor A Project on Tuesday, Jan 16 between 10AM & 1PM (approximately).

Because of a massive rock formation in the project area to replace Interceptor “A” in Cheltenham Township’s sanitary sewer system, officials have planned a second controlled drilling and blasting on Tuesday, January 16, 2018. The work is scheduled to occur approximately between 10:00 a.m. and 1:00 p.m. behind the Fire Training Center along Tookany Creek Parkway and may include areas within the creek in Cheltenham.

Like the first controlled blasting, which successfully fractured rock that had resisted mechanical measures including heavy duty quarry/mining equipment, the blasting contractor must comply with all of the requirements under the permits of both the Cheltenham Township Fire Marshal and the Pennsylvania Department of Environmental Protection, Bureau of Mining. Blasts will be developed to minimize ground vibrations and offer the minimal risk possible to surrounding structures. The contractor will conduct pre-blast surveys of all buildings located within 200 feet of a blast area. For safety, each blast will be preceded by a security check of the blast area to prevent unauthorized entry, then a series of warning whistles. Similar to the first effort, seismographs will be deployed to track the amount of disturbance, which is again expected to be largely undetectable to the local residents.

For more information, contact the blasting contractor Hayduk Enterprises, Inc., at 800-542-5352.


For more information on controlled blasting, see "December 1, 2017 - Information about Potential Controlled Drilling & Blasting for Interceptor A" and  PADEP Blasting Information Sheet




December 5, 2017 - Controlled Drilling & Blasting Utilized for the Sanitary Sewer Interceptor A Project between 10AM & 11AM on Friday, Dec 8.

Cheltenham Township’s project to replace Interceptor “A” in the sanitary sewer system has hit a rock, literally, significantly delaying the project. The Township’s contractor, R-III Construction, Inc., has exhausted a variety of increasingly more aggressive mechanical measures, including the use of heavy duty quarry/mining equipment, without success to remove a massive rock formation from the worksite near the Fire Training Center along Tookany Creek Parkway in Cheltenham. Consequently, controlled drilling and blasting will be utilized to remove the rock between 10AM and 11AM on Friday, December 8.

The blasting is permitted by both the Pennsylvania Department of Environmental Protection, Bureau of Mining, and the Cheltenham Township Fire Marshal. Blasts will be developed to minimize ground vibrations and offer the greatest protection possible to surrounding structures. Each blast will be preceded by a security check of the blast area to prevent unauthorized entry, then a series of warning whistles.

The extent of the rock formation within the Interceptor “A” project area is not known and the contractor will conduct surveys in the area to determine whether blasting will be required in additional areas along the Interceptor “A” project area. Residents with buildings located within 200 feet of a blast area will be contacted prior to any blast as the contractor is required to conduct pre-blast surveys.

For more information, contact the blasting contractor Hayduk Enterprises, Inc., at 800-542-5352.


December 1, 2017 - Information about Potential Controlled Drilling & Blasting for Interceptor A (PADEP Blasting Information Sheet)

To replace Interceptor A of sanitary sewer system, the Township’s contractor, R-III Construction, has undertaken numerous and exhaustive mechanical measures to remove rock from the location of the new sanitary sewer main; however; the rock has continued to be extremely difficult to remove and has significantly slowed the progress of the project. Mechanical means have included:

An 8,000 lb. hammer on a 100,000 lb. machine;
A 12,000 lb. hammer on a 120,0000 lb. machine;
A 14,0000 lb. hammer on a 130,000 lb. machine;
A drilling rig to drill holes to fracture the rock;
A 16,0000 lb. hammer on a 150,0000 lb. machine which is mining/quarry grade equipment.

Controlled drilling and blasting may be needed to remove the rock. If it is needed, nearby residents will be notified prior to the date and the following standards will be followed:

The drilling and blasting process must be permitted through and follow PADEP requirements as well as following the International Fire Code.
Emphasis will be on the safe and efficient removal of the rock existing on this project without impact to surrounding structures. Blasts will be developed so as to create adequate relief which will minimize ground vibrations and offer the greatest protection possible to the surrounding structures. In most cases individuals will not know the blasting has even occurred. Blasting will comply with the PA DEP regulations that are in place to protect all building components including plaster-on-lath. Where buildings are located within 200 feet of the blast area, a pre-blast survey of the building will be conducted. Property owners will be notified prior to the survey.

Blasting cannot be conducted at times different from those announced in the blasting schedule except in emergency situations, such as electrical storms or public safety required unscheduled detonation.

Warning and all-clear signals of different character that are audible within a range of one-half mile from the point of the blast shall be given. All persons within the permit area shall be notified of the meaning of the signals through appropriate instructions and signs posted.

Access to blasting area shall be regulated to protect the public from the effects of blasting. Access to the blasting area shall be controlled to prevent unauthorized entry before each blast and until the perimeter's authorized representative has determined that no unusual circumstances exist after the blast. Access to and travel in or through the area can then safely resume.

Each blast will be preceded by a security check of the affected area and then a series of warning whistles. Communications will be made with job site supervisors and local officials as required to ensure the safest possible operation. All personnel in the vicinity closest to the blast area will be warned. The warning whistles will follow the following sequence:

2 Whistles - 2 Minutes to Blast
1 Whistle - 1 Minute to Blast
3 Short Whistles - All Clear

The blast site will be examined by the blaster prior to the all clear signal to determine that it is safe to resume work. No blast will be fired until the area has been secured and determined safe.

All blasting will be performed in compliance with Federal, State, and Local regulations, including transportation and storage of explosives. Blasting, explosive-handling, and monitoring operations will be conducted in accordance with the latest Occupational Safety and Health Administration (OSHA) standards, 29 CFR 1926.900 – 1926.914 and, Occupational Health and Safety, Chapter 17 Paragraphs 77.551 through 77.965, Chapter 210 Use of Explosives and Chapter 211 Storage, Handling and Use of Explosives.

Questions may be directed to the blasting contractor Hayduk Enterprises, Inc. 1-800-542-5352


In late July/early August 2017 Cheltenham Township began a 12-month project to replace nearly 4 miles of its public sanitary sewer system, called Interceptor A, between Old York Road and Central Avenue.

Interceptor A Replacement Map  

This extensive $8.5 million project is the Township’s second major initiative this year to tackle its aging sewer system, which is nearly 100 years old in sections. In January 2017, the Township launched an eight-year effort to clean and inspect all of the sanitary sewer mains as well as the laterals that connect homes and businesses to the public sewer system.
 
Both efforts are designed to correct the problem of rain water and ground water entering the sanitary sewer system, known as inflow and infiltration (I/I). During and after major rain events, cracks or breaks in the sanitary sewer main and laterals allow excess water into the system, straining its capacity, increasing treatment costs and potentially triggering sewer overflows that damage property and the environment. When completed, the interceptor replacement should eliminate a major portion of the I/I entering the Cheltenham sanitary sewer. Therefore, the Township will be able to remove the temporary sewer bypass ("black pipe") that currently serves as a backup to prevent sewer overflows.
 
During the project, temporary road and park closures will be necessary in the active work zones. Updates of the project work schedule and weekday detours will be posted below.


Sanitary Sewer Detour Map - Tookcay Creek Parkway
      Tookany Creek Parkway & Recreational Facilities Closed 24/7
      September 2017 - To protect public safety, Cheltenham Township officials have  completely closed the Tookany Creek Parkway and all adjacent recreational facilities 24/7 during the sanitary sewer project to replace Interceptor A at that location. Tookany Creek Parkway is closed between Beryl Road and Central Avenue until approximately Memorial Day 2018.

      Motor vehicles, pedestrians, joggers, bikers, etc., may not access the roadway or adjacent parks and trails at any time until further notice. Barriers have been installed on Tookany Parkway at Beryl Road and Central Avenue to prevent admittance.

      When the sanitary sewer project first began, access was allowed during evenings and weekends. However, the continuing excavation has made the project area too dangerous to permit access at any time.

      No public is permitted on the pedestrian trail/path on both sides of the creek between Jenkintown Road and Central Avenue, in the Tookany Park Playground, on Veterans Fields or in the Kleinheinz Pond parking lot. These full-time closures will remain in effect for numerous weeks until this section of the sanitary sewer replacement project is completed.

      As previously noted, Gimbel Field off Harrison Avenue remain closed to the public for the duration of the entire replacement project.
       
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      Cheltenham Township   ~   8230 Old York Road   ~   Elkins Park, PA 19027
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      Phone: 215-887-1000   ~   Fax: 215-887-1561
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