North Texas • Residential Project Guides
A drainage swale is a shaped surface that directs runoff, but a low strip of ground is not automatically a complete drainage solution. The route, outlet, elevations, property limits and final surface all matter. Before grading begins, identify who designed the drainage concept and who will confirm that the finished work matches it.
Start with elevations and a real outlet
Use available survey, civil or landscape information to show the intended high and low points. Define where runoff should go after it leaves the swale. Do not grade toward a neighboring property, building opening or uncontrolled erosion point based on appearance alone. Local drainage and development requirements vary by jurisdiction.
Mark property and work limits
Confirm property lines, easements, fences, walls, trees and surfaces that must remain. If the route approaches a public right-of-way, drainage easement or shared feature, verify permissions before work. An excavator should not invent ownership or legal drainage rights from a site walk.
Coordinate underground and surface features
Request utility coordination before digging. Texas811 addresses participating underground facilities, while irrigation, lighting, private electric and other private systems can require separate locating. Also record inlets, cleanouts, septic components and access covers so the new grade does not bury or overload them.
A swale needs a maintained finish.
State whether the final surface is sod, seed, stone or another approved treatment, and who maintains it until established.
Plan erosion and sediment control
EPA and TCEQ construction-stormwater programs focus on preventing polluted runoff from leaving disturbed sites when their requirements apply. The responsible parties should select controls for the disturbance, forecast and outlet. A generic swale detail does not replace the project’s stormwater plan or local requirements.
- Protect existing inlets and drainage features.
- Keep disturbed soil inside the controlled work area.
- Stabilize the final surface as the scope requires.
- Inspect after rain and equipment traffic.
- Document who repairs erosion or settlement.
Write the verification and restoration scope
State who checks elevations and drainage before final landscaping. Identify surplus-soil removal, imported material, irrigation repair and restoration separately. Review Iron Earth’s grading and site-work services through the project assessment process.
Drainage swale questions
Can the excavator choose the outlet?
The outlet should come from the approved project plan and applicable property or jurisdiction requirements.
Does grading include new sod?
Only if the proposal includes it. Soil shaping, stabilization, irrigation and landscaping may be separate work.
Will a swale solve every wet-yard problem?
No. Roof drainage, neighboring runoff, soil, underground systems and outlet capacity may require broader evaluation.
What helps with an estimate?
Send a survey or plan, photos during dry and wet conditions, utility information, access dimensions and the desired final surface.
Sources checked October 6, 2026: EPA NPDES stormwater program · TCEQ construction stormwater program · Texas811 notification guidance
Let’s plan your next step.
Send your North Texas property location, photos and project goals. Iron Earth will review the scope and explain what information is needed for an estimate.