We have delivered fill dirt to hundreds of erosion repair jobs across DFW and Denver. The pattern is always the same: a homeowner or contractor ignores a small washout, then six months later they are staring at a 3-foot gully eating into their yard. Erosion does not fix itself. Every rainstorm cuts the channel deeper and moves more soil downhill. The good news is that fill dirt, applied correctly with proper grading and drainage, stops erosion permanently. Here is exactly how to do it.
Why Your Property Is Eroding
Before you order dirt, you need to understand what is causing the erosion. Throwing fill into a washed-out area without fixing the root cause means you will be ordering more dirt in six months. These are the most common causes we see on job sites across North Texas and the Denver metro.
Poor Grading and Flat Spots
Water needs a minimum 2% slope (about a quarter inch per foot) to drain away from structures. When grading settles or was never done correctly, water pools against foundations, saturates the soil, and starts carving paths downhill. In DFW, the expansive clay soil makes this worse because it swells when wet and shrinks when dry, creating cracks that channel water underground and accelerate surface erosion.
Uncontrolled Downspout Discharge
A single downspout during a heavy rain can discharge 500 gallons per hour. When that water dumps directly onto bare soil at the base of your house, it carves a trench within weeks. We see this on nearly every residential erosion job we deliver to.
Slope Runoff and Bare Soil
Any slope steeper than 3:1 (three feet horizontal for every one foot vertical) without vegetation is going to erode. In Denver, freeze-thaw cycles from October through April break up exposed soil on slopes, and spring snowmelt carries it downhill in sheets. In DFW, the intense spring thunderstorms in April and May do the same damage in a single afternoon.
Construction Disturbance
New construction, pool installations, and fence line work strip vegetation and compact soil unevenly. The disturbed areas become low spots that collect runoff, and the compacted areas shed water instead of absorbing it. If the contractor did not regrade properly before they left, erosion starts with the first rain.
Fill Dirt Solutions for Erosion Control
Regrading to Redirect Water Flow
The most effective erosion fix is regrading the affected area so water flows where you want it. For most residential lots, this means establishing a consistent 2% to 5% slope away from the foundation toward the street, alley, or a designated drainage point. A typical regrading job on a DFW residential lot takes 10 to 30 yards of fill dirt. At $10 per yard delivered in DFW or $15 per yard in Denver, regrading is one of the most cost-effective property repairs you can make.
Building Berms to Divert Runoff
A berm is a compacted ridge of fill dirt that redirects water flow. We build them 12 to 18 inches high and 4 to 6 feet wide at the base, with a gradual slope on both sides. A 30-foot berm typically requires 4 to 6 yards of compactable fill dirt. Berms work well along property lines where a neighbor's lot drains onto yours, or at the top of a slope to divert sheet flow before it picks up speed.
Filling Eroded Channels and Gullies
For existing washouts, you need to fill the channel and compact the dirt in 6-inch lifts. Do not just dump loose fill into a gully and walk away. Each lift needs to be compacted to 90% to 95% density so it does not wash out again. A gully that is 2 feet deep, 3 feet wide, and 20 feet long holds roughly 4 to 5 yards of fill. For channels that carry significant water flow, place 4 to 6 inches of rip-rap rock at the bottom before filling with compactable dirt above it.
Creating Swales for Controlled Drainage
A swale is a shallow, wide channel that moves water slowly across your property without eroding. The ideal swale is 12 to 18 inches deep and 4 to 8 feet wide with gentle side slopes. You build the surrounding grade with fill dirt to direct water into the swale, then line the swale with topsoil and seed it with grass. The vegetation slows the water and the roots hold the soil in place. Most residential swales require 10 to 20 yards of fill dirt for the surrounding grade work.
Choosing the Right Material
Not all fill dirt works the same for erosion control. The material you need depends on the specific application.
Compactable fill dirt ($10/yd in DFW, $15/yd in Denver) is the right choice for regrading, berms, and filling gullies. It contains a mix of clay and sand that compacts firmly and resists water penetration. This is what you want for any area that needs to shed water rather than absorb it.
Structural fill ($20/yd in DFW, $25/yd in Denver) is engineered for load-bearing applications. Use it when building up areas near foundations, retaining walls, or driveways where the fill must support weight without settling.
Topsoil ($17/yd in DFW, $22/yd in Denver) goes on top as the final 3 to 4 inches for any area you plan to seed or sod. Topsoil alone is too loose and organic for erosion control, but it is essential as the planting layer over compacted fill.
For high-flow areas like drainage channels or steep slopes above 2:1, rip-rap rock ranging from 4 to 8 inches in diameter provides permanent erosion protection where vegetation cannot establish.
Slope Stabilization Techniques
Terracing with Retaining Walls
For slopes steeper than 3:1, terracing breaks a long slope into shorter, flatter sections that slow runoff dramatically. Each terrace is a level bench 4 to 8 feet wide, retained by a wall on the downhill side. Fill the bench area with compactable fill, top with 4 inches of topsoil, and seed. A single terrace on a 30-foot-wide slope typically needs 15 to 25 yards of fill depending on the depth of the cut. Retaining walls over 4 feet tall require engineering in most Texas and Colorado jurisdictions.
Erosion Blankets Over New Fill
After you place and compact fill on a slope, the surface is vulnerable until vegetation establishes. Erosion control blankets, which are biodegradable mats made from straw, coconut fiber, or wood excelsior, hold the soil in place for the 6 to 12 weeks it takes grass seed to develop a root system. Stake them with 6-inch landscape staples every 3 feet. This step is especially critical in DFW where a single May thunderstorm can drop 3 inches of rain in an hour.
Hydroseeding for Large Areas
For slopes larger than 2,000 square feet, hydroseeding is more effective than broadcast seeding. The hydroseed slurry contains seed, mulch, fertilizer, and a tackifier that glues everything to the slope. Combined with erosion blankets over compacted fill, hydroseeding gives you the fastest vegetation establishment on repaired slopes.
Best Vegetation for Erosion Control
Vegetation is the long-term solution. Roots bind soil particles together and foliage breaks the impact of raindrops before they hit bare ground.
For North Texas: Bermudagrass is the top performer for erosion control. It spreads aggressively by stolons and rhizomes, tolerates the alkaline clay soil, and goes dormant rather than dying during summer drought. Buffalograss is a native low-maintenance alternative that establishes deep roots with minimal watering. For shaded slopes, St. Augustine holds soil well but needs supplemental irrigation.
For Denver: Blue grama grass and buffalo grass are native species adapted to Colorado's alkaline soil, cold winters, and dry summers. They develop root systems 4 to 6 feet deep once established, which is exceptional for slope stabilization. For irrigated areas, tall fescue provides dense year-round cover and handles the freeze-thaw cycle without heaving.
Integrating Drainage with Fill Dirt Work
Fill dirt and drainage go together on every erosion job. Regrading without drainage infrastructure just moves the erosion problem to a different spot on your property.
French drains collect subsurface water and redirect it. Install them at the base of slopes or along the uphill side of structures. A perforated 4-inch pipe in a gravel-filled trench, wrapped in filter fabric, handles most residential applications. Grade the surrounding fill to direct surface water away from the drain so it handles only subsurface flow.
Catch basins collect surface water at low points and route it through solid pipe to a discharge point. When regrading, plan your catch basin locations before the fill arrives so you can set the basins at the correct elevation as you build up the grade.
Channel drains work well across driveways and paved areas where water sheets off hard surfaces onto adjacent soil. Intercepting that runoff before it hits your freshly graded fill dirt prevents the erosion from starting over.
Temporary vs. Permanent Solutions
If you need to stop active erosion immediately but cannot do the full regrading job yet, there are temporary measures. Silt fence staked along the contour of a slope catches sediment during rain events. Straw wattles, which are mesh tubes filled with straw placed across slopes, slow sheet flow and trap soil. These buy you weeks or months, not years. The permanent fix is always regrading with compacted fill, proper drainage, and established vegetation.
Permit Requirements Near Waterways
In both Texas and Colorado, grading work near creeks, streams, or designated floodplains may require permits. In DFW, work within a FEMA-designated floodplain requires a floodplain development permit from your city. In Denver and surrounding cities, grading within 50 to 100 feet of a waterway typically requires a grading permit and an erosion control plan. Fill dirt placed near waterways must be clean, meaning no debris, no construction waste, and no contaminants. Always check with your local building department before grading near any waterway or drainage easement.
Order the Right Amount
Most residential erosion control jobs in DFW need 10 to 30 yards of fill dirt. Our minimum order is 10 yards, delivered by tandem truck. For larger slope repair or terracing projects, a tri-axle carries 16 yards and an end dump or side dump handles 18 yards per load. Use our free calculator to estimate your yardage based on the area dimensions and depth of fill needed.
All prices include delivery to your site with no hidden fees. We accept Zelle and Venmo for payment. Same-day delivery is available on orders placed before 10 AM, Monday through Saturday, 7 AM to 5 PM. Call or text us at (469) 523-6420 or email support@filldirtnearme.net to discuss your erosion problem. After moving over a million yards of dirt across DFW and Denver, we have seen every erosion scenario and can recommend the right material and quantity for your job.