Slabs beside the Brazos River live or die by what is underneath them, and in the Pecan Plantation community we start every building with the subgrade: its moisture, its density and the way water moves across and through it. A foundation here may serve a clubhouse, a maintenance building, a hangar or an amenity center, and each of them gets a prepared base before steel or forms arrive.
The community sits along the Brazos River's western bank, below Lake Granbury, with the lake's dam crossing the river near the area's northwest corner. That position means groundwater can sit closer to the surface than owners expect, and river bottom soils can hold moisture that a slab will draw from below. We read the geotechnical report, check the water table where borings are available and decide whether a vapor barrier, a thicker base or lime treatment is called for.
Pecan Plantation also has an unusual development history. Roughly 2,200 acres in the southeast part of Hood County were laid out around a landing strip with two runways, and some homes are built with direct access to the runway. The private Pecan Plantation Airport (0TX1) is owned by the owners association and has a 3,616 by 50 foot asphalt runway plus a turf landing area of roughly 3,000 feet, about nine nautical miles southeast of Granbury. We schedule, coordinate, supervise and inspect the trade partners who carry out the earthwork, forming, reinforcing and placement.
Buildings that sit on this ground
Most structures in an association-run community are small to mid-size: offices, maintenance shops, amenity buildings, and in an airpark setting, private hangars with wide door openings. Each needs a different slab, and the owners range from the association itself to homebuilders and residential developers who add amenity buildings. A maintenance shop may need a thicker floor for equipment, while a hangar needs a floor that stays flat under an aircraft and a door track that does not settle.
Hangar floors are worth a note. Aircraft hangar slabs need a smooth finish, a slope toward the door that carries spilled fluids away, and joints placed so wheels do not catch. We build them from the owner's aircraft list, since wing span, weight and tow equipment decide the thickness.
Reviews in an unincorporated community
A CDP is a community, not a city, and permitting authority depends on where the parcel lies. Part of the area extends into Johnson County, so we confirm early which county, utility and owners association reviews apply. A short call at the start saves weeks later.
Private associations often add design review on top of county permits. We prepare drawings, finish samples and a pour schedule that satisfy both, and we keep the association's inspection requests in the same calendar as the engineer's. Public works pieces, such as roadside drainage or a shared path, follow the standards of the agency that will maintain them, so we ask who that is before we draw a joint.
Delivery and pours around residents and aircraft
With about 7.4 square miles of dry land and a small amount of water, the area is compact enough that a few internal roads carry most truck traffic. We plan concrete deliveries to avoid peak resident traffic and to keep trucks clear of the runway area, then post flaggers where trucks cross a travel way.
Summer heat calls for early starts, and a long haul can shorten working time for the mix. We choose a plant and a mix design that suit the distance and keep a backup truck line ready. Pours that must happen in one day, such as a hangar floor or a large amenity slab, get a pump and a spare plant on standby, so a breakdown does not leave a cold joint in the middle of the floor.
Services that protect a slab from below
Where soils are weak or wet, over-excavation and recompaction replaces poor material with engineered fill in lifts, with density tests on each. Lime and cement soil treatment is another option for clay that swells.
For public works pieces such as roads, drainage swales and amenity paths, we add sidewalks and flatwork and curbs built to the same standards. The result is a site where the building and its approaches move together instead of at different rates, and a door that opens flush today still opens flush after several wet seasons.
The soil report first, the cure last
Our method is the same everywhere in Texas and different in every detail. We read the report, probe the site, set subgrade treatment and base, and proof-roll before forms. On pour day we check steel, take slump and temperature and cast cylinders for each placement.
After finishing, we cure the slab with compound or wet cover, record the dates and protect edges from traffic. Good curing is a cheap step that pays back for decades, and Texas sun and wind can be hard on a young slab. On windy days we add fog misting and windbreaks to keep the surface from drying too fast.
Water table, access and long-term upkeep
A high water table, floodplain edges and runoff from nearby slopes affect how deep footings can be dug and how the base drains. We plan dewatering where needed and keep pumps ready during excavation.
Owners should also think about future maintenance. A slab joint sealed at the right time and a drain kept clear will stretch the life of a floor, and we give owners a short care sheet at closeout. It lists joint sealing intervals, drain locations and the signs of settlement that deserve a call, so small problems are fixed before they grow.
Send the Pecan Plantation plans
Share the plans, soil report and target dates for your project in the community. We will return a clear scope and price. See also our pages for Cleburne and Burleson.
Common Questions
Why does moisture under a slab matter?
Moisture moving up through a slab can lift flooring, grow mold and make the slab curl. We control it with a prepared base, a vapor barrier where specified and good drainage, and we test the slab before finished floors go in.
Can you build hangar floors?
Yes. We design the pour around the aircraft loads and door tracks, set slopes for drainage and finish the surface to the smoothness the owner wants. The engineer sets thickness and reinforcing.
How long should a slab cure before it carries equipment?
Strength depends on the mix, the temperature and the curing method. Light foot traffic may be fine after a day or two, while heavy equipment and aircraft should wait until cylinder breaks show the design strength. We review the break results with the owner before loads are allowed.
Who approves permits for a parcel in the community?
It depends on the parcel's location, and part of the area extends into Johnson County. We ask the owner and the association early and prepare the set for each reviewer.
How do you handle soft or wet ground?
We excavate poor material, replace it with engineered fill and test density in each lift, or treat clay with lime where the report allows. Dewatering is added when the water table is high.