How Poor Site Grading Can Derail Permits in TX, NC & FL

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Faster Project Turnaround

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We have successfully delivered civil, structural, and land development projects for developers, contractors, and owners throughout Texas, North Carolina, and Florida.

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Why Grading Problems Stop Permits

Grading decides where water goes. Reviewers send a plan back when it drains runoff onto a neighbor, fills a floodplain without mitigation, or lets water leave the site without erosion control.

Grading done without a permit can also bring citations.

Most of these problems can be avoided by designing the drainage before the site plan is locked in.

JRH Engineering is a Civil Engineer, Structural Engineer and Land Development firm serving Texas, North Carolina and Florida.

JRH guiding principles are: Engineering Excellence. Delivered on Time. Built on Value.

Common Grading Pitfalls

• Diverting natural drainage onto adjacent property

  
  

• Filling in the floodplain without the required mitigation storage

  
  

• Incomplete erosion control or SWPPP plans, missing BMPs or phasing

  
  

• Detention pond storage that does not match the reviewing agency's criteria

  
  

• Missing topographic data, so proposed grades do not tie into existing ground

  
  

• Unpermitted grading that triggers violations and retroactive permitting

  
  

Texas

• Texas Water Code §11.086 prohibits diverting or impounding the natural flow of surface water in a way that damages another's property by overflow

  
  

• Sites disturbing 1 acre or more need TCEQ construction stormwater coverage and a SWPPP

  
  

• Harris County and other counties require floodplain permits for fill in mapped flood zones

  
  

North Carolina

• Land disturbance of more than 1 acre needs an approved erosion and sedimentation control plan under G.S. 113A-57

  
  

• Under G.S. 113A-54.1, the state must act on a draft plan within 30 days, or the plan is deemed approved

  
  

• In the Neuse and other basins, riparian buffer rules limit grading near streams

  
  

Florida

• Most new development needs an Environmental Resource Permit for stormwater and surface water changes

  
  

• Wetland impacts may also need federal Section 404 review

  
  

• Sites of 1 acre or more need FDEP construction stormwater coverage

  
  

How to Avoid Grading Problems

1. Start with a current topographic survey (by others).

   
   

2. Map floodplains, wetlands and buffers before layout.

   
   

3. Design drainage and detention pond storage with the grading plan.

   
   

4. Include a complete erosion control plan and SWPPP.

   
   

Project: Mueschke Road Floodplain Remediation, Harris County, TX

• Unpermitted site development in Harris County

  
  

• Reviewed by the Harris County Flood Control District (HCFCD)

  
  

• Read the full Mueschke Road case study

  
  

Challenges

• Unpermitted development triggered a floodplain violation citation

  
  

• The owner needed compliance without buying land

  
  

Objectives

1. Resolve the HCFCD citation.

   
   

2. Use existing site infrastructure.

   
   

Solutions JRH Engineering Provided

• Civil engineering floodplain analysis and BFE designation

  
  

• The existing detention pond widened and deepened to provide the required storage

  
  

Results:

• Citation cleared with a retroactive HCFCD permit

  
  

• No new land required

  
  

Sources

• Texas Water Code §11.086, TCEQ construction stormwater

  
  

• G.S. 113A-54.1, NC riparian buffer program

  
  

• FDEP Environmental Resource Permit; see also Detention Pond Design for Regulatory Compliance

  
  

Frequently Asked Questions

Can grading change how water drains onto my neighbor's property?

In Texas, Water Code §11.086 prohibits diversions that damage another's property by overflow.

Do I need a permit to fill in a floodplain?

Usually; counties such as Harris County require floodplain permits and mitigation.

When is an erosion control plan required in North Carolina?

For land disturbance of more than 1 acre under G.S. 113A-57.

What happens if NC does not act on an erosion control plan in 30 days?

The plan is deemed approved under G.S. 113A-54.1.

Can unpermitted grading be fixed?

Often, through analysis, added storage and a retroactive permit, as at Mueschke Road.

Does JRH Engineering obtain building permits?

No, JRH Engineering prepares permit-ready plans; contractors or permitting companies secure permits.

Want More Information on this Topic?

• Call JRH Engineering at (800) 227-9635

  
  

• Use the chatbot in the lower right-hand corner of this page

  
  

• Submit a request through JRH Engineering's contact page

  
  

Find JRH Engineering on Google:

• Houston, TX | Manvel, TX (HQ) | North Carolina | Florida

  
  

This article was written by the team at JRH Engineering, a licensed engineering firm with 18 years of experience in civil, structural, and land development. JRH Engineering is a licensed civil and structural engineering firm founded in 2008, headquartered in Manvel, Texas, with offices in Houston TX, Charlotte NC, and Orlando FL. Certified WBE, WOSB, and HUB-eligible. Phone: (800) 227-9635 | sales@jrhengineering.net | jrhengineering.net. Texas PE license is F-10385. North Carolina PE license is P-3118. Florida license is 38516.