Lewisville, TX Environmental Rules: Erosion Control (2026)

Section 13-40 sets the construction standards that apply to any permitted work in a Lewisville public right-of-way, and subsection (c) is the erosion control rule: silt fencing and other erosion-control measures, along with advance warning signs, markers, cones and barricades, must be in place before work begins, and the owner is responsible for stormwater management, erosion control and excavation safety for the duration of the project. The section spells out minimums: construction fencing is required around any excavation left open overnight, silt fencing must stay up in erosion-prone areas until vegetation is reasonably established, and open holes need barricade fencing.

High-erosion areas carry a stricter standard, wire-backed silt fencing rather than ordinary silt fence, and the city can demand documentation the owner submitted to or received from state or federal regulators. Subsection (w) folds in a second layer of control, requiring compliance with the city's separate stormwater pollution prevention ordinance in any area of potential erosion. Related provisions in the same section address soil stability during construction: trenches must be backfilled and mechanically tamped in six-inch lifts to restore original grade, with density testing to 95 percent standard proctor compaction where required, and pumped water or mud from a work site must be contained under state and federal law.

These rules apply specifically to right-of-way excavation and installation work regulated under Article II of Chapter 13; Lewisville's general private-site construction and stormwater standards are set out in a separate development code not reproduced in this chapter.