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Project Information

Need for the project: These improvements are necessary for Dominion Energy Utah to keep pace with growing customer demand for natural gas, maintain overall system integrity and continue providing safe and reliable service.

Locations and Schedules: Pipeline replacement work is underway or is planned at the following locations and, weather permitting, for the specified times:

  • April to August 2019 - 300 East from 2100 South to 800 South

Construction: We are committed to completing this work as quickly and with as little inconvenience to local businesses and residents as possible. These projects may involve some nighttime and weekend work. To provide room for crews and equipment, some temporary lane restrictions, especially at intersections, will be necessary. Watch this site for the latest traffic information.

Please drive carefully and obey all signs and flaggers. To avoid congestion in construction zones, motorists are advised to use alternate routes when possible and to allow plenty of travel time to get where they're going. Our crews will make every effort to maintain access to businesses and driveways in construction zones at all times. No interruption to residents’ natural gas service is anticipated during this project. We appreciate your patience.

These projects are part of a multi-year effort by Dominion Energy Utah to maintain system integrity by replacing aging sections of pipe throughout Utah. Since 1995, the company has successfully replaced nearly 150 miles of high- and intermediate high-pressure pipe installed prior to 1970. Future system upgrades are planned. The company will announce the start of these projects when schedules are determined.

Contact: For additional information, questions or concerns, please call the Project hotline: 801-324-5521.

April 29, 2019 -  Approximately half of the 16” pipe has been installed as of last week.

February 26, 2019 (Salt Lake City) –In the spring, Dominion Energy Utah (DEU) will be replacing 2,000 feet of 16-inch natural gas pipeline along 300 East between 800 South and 2100 South. We call this our 300 East Belt Line project. The old pipe will be removed, and new steel pipe will be installed. In addition, a large valve will be installed in the 300 East 800 South intersection.

The project will involve an open trench (3 feet wide and 5 feet deep along the 2,000-foot route) on west side of the southbound travel lane. Steel plates will cover the trench outside of work hours.

DEU is committed to completing this work as quickly and with as little inconvenience to local residents as possible. This project is not expected to cause any interruption to residents’ natural gas service. We will make every effort to maintain access to parking spaces at all times. However, residents who live directly adjacent to the right-of-way may experience short periods when parking may be restricted to allow movement of pipe and equipment.

As stated above, the start date will have everything to do with favorable weather conditions. We hope to begin the work in April. This project is part of DEU’s Infrastructure Replacement Program, and our contractor is Diamond S Company.

Public safety is of paramount importance to us. Residents can do their part to ensure that construction proceeds safely and on schedule by driving carefully in construction zones and by keeping children away from open trenches, construction activity, and all construction equipment during and after working hours.

  • To view the map using Google Earth here.
  • Legacy Trail Bicycle-Pedestrian Detour map between Center Street and 2425 South
  • Legacy Trail Bicycle-Pedestrian Detour map between 2425 South and 500 South

Dominion Energy and our contractor, Canyon Pipeline of Phoenix, AZ, are committed to completing this project safely and on schedule while minimizing as much as possible any inconvenience to local businesses and residents. To accomplish this, some work may be performed at night and on weekends. This will reduce impacts on morning and evening commutes. We will adhere to all county noise-reduction ordinances. Canyon Pipeline has more than 40 years experience in 39 states building pipelines in urban settings.

Construction Zones

For pipe buried beneath streets or highways, construction may require intermittent closures of one or more lanes of traffic. Driveways also may be occasionally blocked by excavation work, otherwise they will be plated to maintain access during business hours and at night and on weekends.

Before construction starts in front of any home or business, a representative will contact the owner or resident to discuss options for maintaining driveway access. Signs notifying the public that businesses remain open during construction are available.

To finish construction on schedule and as quickly as possible, the project is divided into sections, or "spreads." This allows multiple crews to work simultaneously at different locations. Work zones can range from a single intersection to several blocks long. At any one location the amount of time to cut pavement, install new pipe and replace asphalt can range from several days to several weeks.

The public can do its part to ensure construction proceeds safely and on time by finding alternative routes, driving carefully in construction zones and keeping children away from construction sites.

Dominion Energy works closely with city and state transportation officials to ensure safety and minimize inconvenience to drivers and pedestrians. However, for public safety it may be necessary to temporarily close streets and sidewalks or restrict vehicle and pedestrian traffic. As mentioned, driveways may occasionally be blocked by excavation work. We will make every effort to keep these inconveniences as brief as possible. Your patience is appreciated.

If you have questions or concerns, do not hesitate to contact us.

Steps During Construction

Following are brief descriptions of the steps involved in pipeline removal and construction:

  • Locate buried utilities - The area below city streets can be a maze of underground utilities. To avoid damaging these facilities, a procedure known as potholing is used prior to trenching to identify the exact vertical and horizontal location of existing infrastructure, including the pipeline to be replaced.
  • Move existing utilities - Before trenching (see next step), all water and natural gas service lines that cross the existing pipe will be moved to a lower depth. This will minimize the risk of interrupting water- or gas-service to individual homes or businesses once actual construction begins.
  • Dig trench - After the pipe has been located and purged of gas and service lines in the trench zone moved, the pavement above the existing pipe is cut and removed. Then equipment is brought in to dig the trench. The depth of the natural gas pipeline trench will be determined by the location of the existing pipe and other utilities. As the trench is dug, the soil is loaded into trucks and hauled away for disposal in a designated landfill.
  • Remove old pipe - Sections of pipe to be removed are cut into lengths, lifted from the trench, loaded onto trucks and hauled away for proper disposal.
  • Deliver and "string" new pipe - New pipe is manufactured and inspected to ensure it meets industry and federal safety standards. Pipe sections are then delivered by truck to the construction site where they are placed end-to-end (or "strung") on skids adjacent to the trench. If necessary, a hydraulic machine bends pipe sections to fit around obstacles or conform to the direction of the trench.
  • Weld new pipe together and coat - Welding crews join the sections of pipe together into a continuous length. Each welded joint is visually inspected, x-rayed and then coated for protection.
  • Lower pipe into trench - Using one or more tractors, crews lift and then carefully lower the welded sections of pipe into the trench. Final welds are made to "tie-in" any unconnected sections.
  • Backfill trench - Under streets, in place of the removed soil, a mixture known as "flowable fill" is used to backfill the trench. In other areas, the original soil is replaced.
  • Pressure test new pipe - After it's buried and before it's put into service, the entire length of new pipe is hydrostatically tested to ensure the integrity of the system. This is done by filling the pipe with water, pressurizing the system above its maximum operating conditions and holding the pressure for a specified time. The pipe is drained, cleaned and dried before put into service.
  • Clean-up and restore ROW - The final step is to repair the surface over the trench. If necessary, fences or sod may also be replaced.
  • Directional bore - At some busy intersections, most water crossings and under major roads, instead of trenching, crews will install pipe by boring horizontally underneath the road, stream or canal. The boring machine drills a hole from one side of the road or stream. Pipe is strung on the other side and then pulled back through hole.

We take safety seriously. Since its founding in 1929, our company and its affiliates have engaged in every phase of natural gas service, from production and gathering to transportation and distribution. During that time, while delivering the clean and efficient natural gas our customers rely on daily for their comfort and livelihood, we have earned an enviable record for safety and reliability.

  • Visit our Safety section on this site for more details.

Frequently Asked Questions

At Dominion Energy, we are committed to providing safe, reliable natural gas service at the lowest possible cost.

In recent years, as part of our continuing efforts to meet growing demand for natural gas while improving overall system integrity, we have begun replacing vital sections of our underground pipeline system serving the Wasatch Front. In most cases we are replacing older pipe with newer, stronger and larger diameter pipe.

These new pipelines carry more supplies, enabling us to better serve the growing number of new homes and businesses in Utah.

They also enhance safety and reliability by making our system easier to monitor and maintain. Some of the older sections of our system have pipe in varying diameters, ranging from six to 20 inches. Replacing these with pipe of the same diameter makes them accessible to "smart tools. These tools -- commonly known as "pigs" -- use MRI technology to inspect the pipe interior, making it possible to detect and correct potential problems before they occur.

No. Redundancies in our system should make it possible to replace the existing pipeline without interrupting service to any customers.

If your property is on or adjacent to the right-of-way, you will receive prior notification by mail alerting you to construction. We work closely with residents and city officials to minimize potential impacts on residents' property. If we do need to access its legal right-of-way to work on or near your property, the company will make reasonable efforts to ensure the landscape is returned as closely as possible to its previous state. This does not include replacement, repair or compensation for unauthorized structures, plants, objects and etc. currently located within the right-of-way.

Residents can make the process easier by making sure that items such as large, deep-rooted trees, concrete slabs, sheds, fences or other structures do not encroach upon our right-of-way. These items not only violate right-of-way policy but also pose a safety hazard and may hinder our ability to reach our pipeline in case of emergency or to perform necessary maintenance.

For more information about what is and is not allowed on pipeline rights-of-way, request a company brochure by contacting a representative at 801-324-3149 or view our brochure.

Construction may require temporary lane closures and/or detours. During construction, we strive to maintain traffic in both directions on city streets at all times, however temporary lane restrictions can be expected.

Private driveways and access to side streets and business parking lots may also occasionally be temporarily blocked by excavation work. When not in use, open trenches will be plated to maintain access during business hours, at night and on weekends.

Any changes in traffic or access will be kept to a minimum and will be as brief as possible.

Before construction starts in front of your home or business, a company representative will contact you to discuss where you would like access maintained. Signs notifying the public that businesses are open during construction will be made available for those who request them.

For the latest information on traffic impacts and lane restrictions, visit this site or email us to receive weekly construction updates by email.

Residents can reduce the risk of accidents by driving carefully in construction zones and keeping children away from the construction site. We work closely with city and state transportation officials to ensure safety and minimize inconvenience to drivers and pedestrians during construction.

Call our information line at 801-324-5521, or email us.
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