Sister company of Construplan construplan.com.mx
Telecom & Data — Microtrenching

Microtrenching for fiber in Phoenix, a narrow cut and a short restoration.

Fiber conduit placed in a narrow, shallow saw cut instead of an open trench — for FTTH rollouts, campus links and data center connections in Phoenix, Mesa, Tempe and the rest of Maricopa County.

What it is

A slot in the street, not a ditch.

Microtrenching places fiber conduit in a narrow cut sawed into the pavement or the ground — typically 16 to 24 inches deep and often around 1¼ inches wide. The exact width and depth are set by the conduit going in and by the jurisdiction's specification, and we confirm them route by route.

The cut, the conduit and the restoration happen in a short window, so a street or a sidewalk is opened for far less time than with a conventional trench.

Microtrench cross-section (schematic, not to scale) Pavement Sealed cap Backfill Conduit 16–24 in. typical depth narrow cut, often ~1¼ in.
Schematic — not to scale
Where it is used
01 — FTTH

Fiber-to-the-home rollouts

Neighborhood builds where long runs follow the curb line and every block has to be opened and closed quickly for residents.

02 — Campus

Campus and multi-building sites

Connecting buildings across parking lots and drives on schools, business parks and industrial sites without tearing up the whole surface.

03 — Data

Data center connections

Short, direct routes into a data center or between buildings on its campus, where the conduit has to land on schedule with the rest of the site work.

Compared with the alternatives

The right method is the one the route allows.

Microtrenching is not always the answer. It is often the fastest one on paved routes, and we will say so when it is not.

vs. open trench

A conventional trench removes and replaces a wide strip of surface. A microtrench opens a fraction of that, so there is less material to haul, less to restore and less time with the lane or sidewalk closed.

vs. directional boring

Boring is the better tool to get under roads, landscaping or obstacles. On long, straight runs along pavement, a microtrench is usually simpler to set up and to inspect, and the two often work together on the same route.

When it is not the fit

Badly deteriorated pavement, corridors congested with shallow utilities or a jurisdiction that restricts the method can all point to boring or open trench instead. We check that before pricing, not after.

How a job runs

Five steps, one schedule.

The sequence on a typical microtrench route, from paperwork to finished surface.

01

Locates and permits

Utility locates (Arizona 811) and coordination of the right-of-way permit and traffic control with the city before any cut.

02

Saw cut

A microtrencher cuts the narrow slot along the approved alignment, to the depth the specification calls for.

03

Vacuum and slurry

Spoil and cutting slurry are vacuumed as the saw cuts and hauled to an approved disposal site, keeping the work zone clean.

04

Conduit placement

Conduit is placed in the slot, then crossings and handholes are tied in so the fiber can be pulled later.

05

Backfill and restoration

The slot is backfilled (typically flowable fill) and sealed at the surface to the jurisdiction's restoration spec.

To quote it

What we need to price a route.

Four facts drive most of the price. Send what you have and we will fill in the rest with you.

01

Route length

Total linear feet, and how it splits between segments if the route has several.

02

Surface type

Asphalt, concrete, sidewalk or unpaved — and its condition, which decides whether microtrenching fits.

03

Crossings

Number of driveway, street and intersection crossings, where boring may be needed.

04

City / jurisdiction

Which city or agency issues the permit, since each sets its own restoration requirements.

If you have them, also send the conduit size and count, the restoration specification and whether a slurry disposal site is designated for the project.

Service area

The Phoenix metro, Maricopa County.

We quote microtrenching across the Phoenix metro area, including:

PhoenixMesaTempeChandlerScottsdaleGilbertGlendaleMaricopa County
Questions

Straight answers.

What owners, ISPs and GCs ask before a microtrench route.

How deep and how wide is a microtrench?

Typically 16 to 24 inches deep, and narrow — often around 1¼ inches wide. The final dimensions depend on the conduit being placed and the jurisdiction's specification, and we confirm them for each route before pricing.

Is microtrenching better than directional boring or open trench?

It depends on the route. On long runs along pavement it usually means less excavation and a faster restoration. Where the pavement is in poor condition, the corridor is congested or the jurisdiction restricts the method, boring or open trench can be the better call, and many routes use more than one.

Which cities do you cover?

Phoenix, Mesa, Tempe, Chandler, Scottsdale, Gilbert, Glendale and the rest of Maricopa County. Each city sets its own permit and restoration requirements, so the jurisdiction is one of the first things we ask.

What happens to the slurry from the cut?

It is vacuumed as the saw cuts and hauled to an approved disposal site. Where that site is, and whether disposal is provided by the owner or carried by the contractor, affects production and cost, so we ask about it up front.

What do you need to quote a microtrench job?

Route length, surface type, number of crossings and the city or jurisdiction. Conduit size and count, the restoration specification and the slurry disposal arrangement help us tighten the number.

Related

Part of the fiber division.

Microtrenching is one method inside our fiber and data center work, alongside the other divisions.

Next step

Send us the route.

Give us the alignment, the surface and the city, and we will come back with the method, the restoration exposure and a schedule.