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DALLAS COUNTY, TEXAS

Directional boring in Dallas County, through chalk, clay and the Trinity floodway.

Commercial and industrial HDD for conduit, fiber, water, sewer and gas across Dallas, Irving, Garland and the rest of the county, by a Southlake-based team that already works in the metroplex.

Commercial projects onlyBased in Southlake300+ crew network
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Based in Southlake

A short haul from Dallas County, with a nationwide crew network behind it

Texas Hawk is headquartered in Southlake, in the northwest part of the Dallas–Fort Worth metroplex, and our crews are based in DFW. Dallas County is part of the same everyday service area, so mobilizations are short for work in and around Dallas. When a program outgrows one crew, our 300+ crew network can mobilize nationwide.

  • Power duct banks, conduit and fiber for commercial and industrial sites in Dallas, Irving, Garland and Mesquite.
  • Crossings under city streets, rail and drainage corridors without open-cutting them.
  • Permits, traffic control and utility coordination lined up before the rig mobilizes.
  • Lean, direct and accountable. Low overhead and a straight line to the people running your job.
Horizontal directional drilling rig on a trailer with support trucks along a roadway
Ground conditions

What’s under Dallas County

Dallas County sits on the western edge of the Blackland Prairie, and the USGS state geologic map shows chalk as its largest surface unit. Site soil borings set the final tooling and fluid program; this is the general picture.

Austin Chalk, the largest surface unit

The USGS state geologic map shows Austin Chalk at the surface across about 41 percent of the county. Chalk is a soft, fine-grained limestone, so it can bore well, but hard beds and weathered, sticky zones both turn up and the tooling has to suit what the soil boring shows.

Ozan Formation clays

The Ozan Formation covers about 17 percent of the county. Clay-rich ground like this sticks to tooling and swells and shrinks with moisture, so fluid control, careful reaming and enough depth under slabs and pavement all matter.

Trinity River alluvium and terraces

Alluvium covers about 16 percent of the county and terrace deposits about 15 percent, mostly along the Trinity River and its creeks. Expect soft, wet or sandy ground, shallow groundwater and flood-prone low spots, so crossings are planned deep with fluid containment staged first.

Eagle Ford shale on the west side

The Eagle Ford Formation makes up about 11 percent of the county. It is a dark shale that weathers to heavy clay near the surface, a different setting from the chalk just a short distance away.

Ground that changes within one bore

Chalk, clay and river gravel can all appear along a single alignment. We plan entry and exit layouts, tooling and fluid so the crew is ready for the change, not surprised by it.

Dense, mapped ground

Dallas County has been built out for generations. Old and abandoned lines are common, so we pothole to verify crossings instead of trusting the drawings alone.

Utilities, agencies & permits

Who you answer to on a Dallas County bore

The right-of-way owner decides the permit path, and in Dallas that can be the city, the Corps of Engineers, TxDOT or a transit agency. We sort it out early so it does not hold up mobilization.

City of Dallas right-of-way

Work in the public right-of-way needs a City permit through the Right-of-Way Management System, and contractors register first. The City code lets the director require boring instead of cutting the street, bars directional drilling in the central business district unless the director approves it, and requires potholing of water mains where a bore crosses or runs within five feet of other lines. A traffic control plan is part of the application.

Trinity River levees and the Corps

Utility crossings of the Dallas Floodway levees need Section 408 permission from the U.S. Army Corps of Engineers, Fort Worth District, along with a no-objection statement from the City of Dallas. The Corps has 30 days to decide whether a request is complete, so those crossings start early.

TxDOT, Dallas District

Dallas County is in TxDOT’s Dallas District with Collin, Denton, Ellis, Kaufman, Navarro and Rockwall counties. Work in state right-of-way is permitted through TxDOT’s utility process.

DART and rail

Work on DART or Trinity Railway Express property needs a license or right-of-entry agreement requested through DART’s DARTSpace portal. Freight railroads run their own approval process, and rail approvals take weeks.

Electric

Oncor Electric Delivery lists Dallas County and the City of Dallas among the places it serves. The electric cooperatives Farmers, HILCO and Trinity Valley also serve parts of the county, so the feeder owner at each site decides the duct bank and service-bore design.

Natural gas

Atmos Energy’s Mid-Tex Division operates the gas distribution system across Dallas–Fort Worth. Gas mains are located, verified and respected on every crossing, and a hand-dug or vacuum-excavated pothole confirms depth before the drill passes.

Pickup with conduit reels and an excavator staged on a graded site near transmission towers
Where the work is

Infill data centers, industrial sites and commercial development

A Cushman & Wakefield report, covered by Dallas Innovates in August 2026, ranks Dallas–Fort Worth the No. 1 data center market in the world. In Dallas County that growth is mostly infill: tight right-of-way, live streets and crowded utility corridors.

  • Data center and utility power: duct banks and fiber, see our data center work.
  • Industrial and logistics sites: utilities under live operations, see industrial plants & large sites.
  • Street, rail and drainage crossings: see jack & bore / dry bore.
  • Water, sewer and gas service lines for commercial development in Dallas, Irving, Garland, Grand Prairie and Mesquite.
How we run a Dallas County job

Plan first, then bore

Review and plan

Plans, utility records and soil data reviewed up front, with the bore profile set to the ground and every crossing.

Locate and permit

Texas811 notice at least two working days ahead, potholes where the bore crosses live lines, and City, Corps or TxDOT paperwork started early.

Bore and contain

Bore the path, track it, and capture drilling fluid so it stays out of storm drains and creeks.

Document

Daily production reports and as-builts for close-out.

Dallas County questions

Straight answers

Does a bore under the Dallas floodway levees need federal approval?

Yes. Crossings of the Corps-managed levees need Section 408 permission, with a City of Dallas no-objection statement, and the Corps takes up to 30 days just to decide whether the request is complete.

Can you drill in downtown Dallas?

Directional drilling and boring are not allowed in the central business district unless the City’s director approves them, so downtown work starts with that approval. Outside downtown, boring under streets is the normal approach, permitted through the City’s right-of-way system.

Can you work on DART property?

Only with the agency’s paperwork. DART requires a license or right-of-entry agreement for its property, requested through its DARTSpace portal, so we recommend starting that request as early as the design allows.

Does chalk stop a bore?

Not usually, but hard beds and clay seams in the same alignment slow production. Soil borings tell us which tooling to bring, and Austin Chalk is the largest surface unit in the county. Texas811 notice is still required at least two working days before any excavation.

How early do I need to apply for a Dallas permit?

The City code asks for an application at least three business days before ordinary work, and a major project needs enough lead time for 30 business days of review. A permit that sits unused for 60 days expires, so we time the application to the rig’s schedule.

Who is this for?

Commercial and industrial projects only: developers, general contractors, utilities and electrical, telecom and mechanical contractors.

Start your Dallas County project

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Commercial projects only. Fill out the quick form or call us — we’ll take it from there.

Call us now817-268-9484Commercial & industrial projects only
Start Your ProjectCOMMERCIAL ONLY
Step 1 of 3Your project
Is this job commercial or residential? *
Project type (select all that apply)
Job site location
Commercial projects only. Prefer to talk? Call 817-268-9484
☎ Call 817-268-9484Get a Quote