Utility Relocation

The new building goes where the old pipe is. That is how most relocations start. A foundation, a widened street or a new driveway lands on top of a water main, a sewer line or a duct bank, and someone has to move it before the excavator can finish. The work sounds like a plain detour. It is not. Every foot of moved line has customers or equipment on the far end of it, and they expect to keep running.

Relocation is the part of site work with the least tolerance for guessing. We do not know what is down there until we look, and the records are often a generation behind the field. A line shown at four feet may sit at eight. A line shown in the street may run under the sidewalk. A line shown as abandoned may be live. We plan on the assumption that the drawings are wrong and we find out how wrong before we commit.

Our job is to build the new route, switch service over, take the old line out of the way and leave the owner with a record they can trust.

Whose line is it, and who moves it

The first question is ownership. A water or sewer line belongs to the city or the district. A gas line belongs to the gas company. Power, telecom and cable belong to their own providers. A private line serving a single building belongs to the owner. Each owner has its own rules on who may touch the line, who must be notified, what materials are acceptable and how long a shutdown may last.

Public owners often keep prior rights in their easements, so a developer cannot simply move a line to suit the site plan. The move needs written approval, and often a new easement. We help prepare the request with a proposed route, a shutdown plan and a record drawing format. When the utility insists on doing part of the work itself, such as a gas or power cutover, we schedule the construction trade partners to meet its crews and keep each party out of the other's way.

Live lines, unknowns and cutovers

Relocation puts people near live utilities. An old water main can fail when disturbed. A sewer can hold gas. An electrical conduit can be energized when the drawing says it is dead. We require positive identification before any cut: potholing, tracing, valve closure and, where needed, a lockout by the owner. The crew stands back on the first cut, and nobody works in a trench with an unidentified line.

Cutovers are planned like operations. We write the sequence, assign roles, confirm that the new line is tested before the old one goes out of service and keep temporary water or power available if the shutdown runs long. We notify affected customers through the owner. We never cut a line to find out what it is. Old pipe that may contain asbestos-bearing material is handled per the owner's rules and the regulations that apply.

What a relocation includes

The work includes locating the existing lines, designing or following the engineer's new alignment, trenching, installing the new pipe or conduit, connecting it, testing it and putting the old line out of service. Out of service means either removed or abandoned in place, depending on the owner. Abandoned pipe is cut, capped and sometimes filled with flowable fill so it does not collapse under new construction.

We handle water, sewer and storm relocation, and we hand off gas and power to their owners while we dig the trench, set the vaults and restore the surface. For small sites this may be a short bypass around a new footing. For larger sites it can be a complete rerouting of the utility corridor before demolition or demolition and site prep can begin. Good potholing and locating up front tells us how big the job really is.

Relocations in rebuilt corridors

Road projects show how heavy this work can get. WYDOT's reconstruction of Poplar Street between Collins Street and the North Platte River bridge, awarded at $12.79 million, includes storm and sanitary sewer and utility upgrades, and the follow-on stretch between CY Avenue and Collins Drive runs two years with detours via Ash Street. Utilities on those corridors have to move or be replaced before the road can be finished. The Poplar Street corridor is the clearest local picture of how many parties share a single right of way.

Downtown has its own pressure. The Old Yellowstone District is the city's urban renewal redevelopment area next to the core, and new buildings there tend to land on old lines. Relocation in downtown Casper usually means tight sites, adjacent buildings and little room for spoil. We stage materials off site, work in short sections and keep the street open as much as the city allows.

Build the new line first

The rule is simple: the new line goes in and passes its tests before the old one comes out. Water is flushed and disinfected. Sewer is air tested. Conduit is mandreled. Only then do we schedule the cutover. That order keeps the downtime to the cutover itself, which is usually a few hours.

We also leave the site better documented than we found it. Each relocated line is surveyed, depths and fittings are recorded and the abandoned segments are located by station and offset. Next to storm drain installation and the other underground trades on the same project, relocation sets the order of everything that follows. When it goes well, no one notices.

What makes a relocation cost more

Uncertainty is the main driver. A line that is where the drawing says is cheap to move. A line that is not, or one that turns out to be two lines, takes days of searching and a new design. The next driver is the shutdown: a customer who cannot go without water for more than two hours forces a bypass, temporary pumping or night work.

Depth, access and surface restoration complete the list. We price relocations with allowances for the unknowns, a clear unit price for the known work and a plain statement of what would change the number. Owners such as utilities and energy companies that already know their systems well can often cut the price by providing accurate records and a firm shutdown window.

Start with the utility map

Send us the site plan and whatever utility records you have. We will tell you what looks wrong, what to expose first and what the shutdown windows are likely to be.

Questions Owners Ask

Can I move a utility line myself to fit my site plan?

Not without the owner. Every utility has an easement, a standard and an approval process. Moving a line without permission can void your permit and put you on the hook for damages. We help you prepare the request and work with the owner on the route, the materials and the shutdown plan.

How long will service be down during a cutover?

A well-planned cutover takes a few hours. The new line is built, tested and ready before the old one is closed. Valve exercise, isolation and reconnection take the time. We tell customers in advance through the owner and keep a crew on site until service is restored and pressure is confirmed.

What happens to the old pipe?

It is either removed or abandoned in place, according to the owner. Abandoned pipe is cut and capped, and larger pipe is filled so it cannot collapse under new construction. We record the location of each abandoned segment so no one hits it unexpectedly.

What if we find an unmarked line during excavation?

We stop work around it, expose it carefully by hand and identify it. We call the engineer and the possible owners. Once the line is identified, we decide whether it can stay, be protected or be relocated. We do not cut or move it until the owner confirms it is out of service.

Does relocation affect the building schedule?

It often sets it. Foundations cannot start until the footprint is clear, and the permit clock keeps running. Casper commercial permits are good for 180 days, so a delayed relocation uses up time that the building needs. We tell owners early about long lead items and the utility steps that will take weeks.

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