When a site sits near a lake and a floodplain, drainage is the first design question and grading is the first construction task. For owners and developers in Trophy Club, we build the earthwork that moves water where the engineer intends: detention basins, swales, inlets, channel work and the graded pads that keep buildings dry. The concrete that follows depends on how well that earthwork was done.
Trophy Club straddles the line between Denton and Tarrant counties beside SH 114, just west of DFW Airport, and it borders Grapevine Lake at the lake's southwest side. That setting brings low ground, creek crossings and regulated drainage paths close to nearly every parcel. A grade that is off by a few inches can send runoff toward a neighbor or into a floodplain, which is why we verify elevations with survey control at each stage.
We schedule, coordinate and inspect the trade partners who strip, cut, fill, shape and compact the site, and we tie the earthwork to the slab and paving work that comes after it.
Working along the 114 corridor
Trophy Club shares its borders and its traffic with Southlake, Flower Mound and Keller, and owners with parcels in several of these places often want one grading plan and one schedule. Equipment and haul trucks move between sites on the same roads, which cuts mobilization time when parcels are close together.
Import and export of soil is planned before work begins. If a site needs fill, we identify sources, test them and schedule hauling around traffic; if it has surplus soil, we find a placement location that satisfies the engineer and the city.
A built-out town with a few large parcels left
As of April 29, 2026 the town manager put Trophy Club at about 95 percent developed, with just two sizable empty parcels. Planners are drafting a small-area plan called The Grove at TC next to town hall, along a stretch of the SH 114 frontage roads that is 4,000 linear feet long.
For a contractor, a nearly built-out town means that most work is infill, redevelopment and the final large tracts. Infill sites tend to have existing drainage that must be preserved, neighbors close by and limited staging room. Trucks, graders and compactors need a place to park and turn, and a site with a single entry may need a phased haul plan. The last large parcels deserve extra planning because their detention and grading decisions will influence the neighbors around them.
Earthwork and drainage scope
Our scope typically includes clearing, mass grading, fine grading, detention and retention basins, swales, culverts and headwalls, storm inlets and pipe, and erosion controls. Each element is built to the engineer's drawings and tested for compaction and grade before the next phase begins.
Where the plan includes outfalls to creeks or the lake, we review required permits and stabilization before excavation, since banks that are shaped but not protected will erode in the first heavy rain.
Concrete and structures that handle the water
Not all drainage is earth. Headwalls, flumes, drop inlets, trench drains and concrete channels carry flow where soil would erode. Our detention and retention ponds work includes outlet structures with the weir and orifice dimensions the engineer specifies.
We also coordinate sidewalks, curb and gutter and pavement edges so that their grades match the drainage design. A curb that is a half-inch high at a low point can create a pond where none was intended.
Survey control and compaction testing
We begin with the topographic survey and the geotechnical report, then set stakes and control points that the grading partners follow. Proof rolling identifies soft areas, and fill is placed in lifts and tested before the next lift. Final grades are checked against the plan before the base or pad is released to the next trade.
Documentation includes compaction results, as-built elevations and photos of basin and outlet construction, which the owner can use for city acceptance and later maintenance.
The same attention carries to the soil beneath future slabs. Moisture content, plasticity and the depth of any fill decide how a slab will behave, so we coordinate with the geotechnical engineer on lime and cement soil treatment and on how long a graded pad can sit before the slab is placed. Covering a pad with a sealed membrane or a temporary cover can keep a good subgrade from taking on water between grading and the pour.
What drives the earthwork price
Quantities of cut and fill and the distance to haul are the largest items. Wet soil, rock and unsuitable material can add cost, as can erosion control in sensitive areas near floodplains. Phasing a large parcel so that soil balances on site is often the best way to cut cost. Commercial developers who plan the grading and the building package together usually see fewer change orders, because the pad elevation, the drainage and the utility depths are fixed in one coordinated set of drawings.
Weather contributes risk. North Texas storms can stop earthwork for days, so we include contingencies and protect open slopes during wet periods.
Floodplain, wetlands and city review
TxDOT's notice for a hearing on August 15, 2024 covered roughly 7.8 miles of SH 114, running from Southlake Boulevard (FM 1709) in Grapevine out to Trophy Lake Drive. The proposal puts one more main lane each way in the median, and the notice flagged that the work might touch wetlands and a floodplain. The notice is a reminder that work near this corridor can involve wetland and floodplain review.
Private projects face city grading and drainage review and, near regulated waters, additional agency requirements. We help assemble the stormwater pollution prevention plan, inspections and records required by the permit.
Sequencing earthwork with the building schedule
Grading should be finished before utilities, and utilities before slabs, and weather decides the order of everything. We build a schedule with float for rain and set trigger dates for soil testing, inspections and approvals. Soil work that is rushed in wet conditions often needs to be redone, and a pad that is left open through a wet spell may need to be reconditioned before it can be released to the next trade.
For owners who also need building slabs, we connect the earthwork schedule to the pour calendar so subgrade preparation is completed shortly before the slab, not weeks before when rain can undo it.
Send the Trophy Club grading plans
Share the survey, drainage plan and soil report for your Trophy Club parcel. We will return a clear scope and price for grading, detention and the concrete that follows.
Common Questions
Why is subgrade moisture a concern after grading?
Clay swells when it gains water and shrinks when it dries. If a pad is graded in a dry period and a slab is poured months later after rain, the soil may have moved. We condition the subgrade and place the slab soon after final grading, or treat the soil with lime when the report calls for it.
Can you build a detention basin near a floodplain?
Yes, subject to the engineer's design and any agency approvals. We plan access, stabilization and erosion control, and we verify elevations before and after construction.
What compaction testing is typical?
A testing lab checks density and moisture for each lift against the specification, commonly with a nuclear gauge or sand cone. We hold the next lift until the test passes.
How do you handle erosion during construction?
We install silt fence, inlet protection and a stabilized entrance before grading, inspect after rain and repair damage promptly. The stormwater plan lists the required steps.