Katy vs Stafford
How do grading & drainage rules compare between Katy, TX and Stafford, TX?
Stafford has fewer restrictions than Katy.
Katy, TX
Fort Bend County
Katy's minimum construction standards require storm sewers to contain a two-year storm without surcharging at minimum 0.1% gradient using Class III concrete pipe and follow Harris County PCPM hydrology standards.
View full Katy rules →Stafford, TX
Fort Bend County
Stafford requires drainage compliance and grading review for new development under Chapter 26 and the subdivision ordinance, ensuring sites do not adversely affect adjacent properties or city drainage.
View full Stafford rules →Key Facts Comparison
| Fact | Katy | Stafford |
|---|---|---|
| Design storm | 2-year, no surcharge | - |
| Min gradient | 0.1 percent | - |
| Pipe class | Class III RCP | - |
| Channel standard | HCFCD PCPM 2019 | - |
| Reviewer | City engineer | - |
| Code Chapters | - | Chapter 26 and 82 |
| Plan Review | - | Public Works |
| Detention | - | May be required |
| Inspection | - | Pre-acceptance required |
Highlighted rows indicate differences between cities.
Katy FAQ
What design storm do storm sewers handle?
Storm sewers in Katy must contain a two-year storm event within the pipe without surcharging, per the city's minimum construction standards.
Which pipe materials are accepted?
Class III reinforced concrete pipe is the standard. Alternatives require approval from the city engineer along with calculations supporting the substitution.
Do open channels need detention design?
Yes. Open channels and detention ponds must follow Harris County Flood Control District PCPM (July 2019) hydrology and design methodology in Katy subdivisions.
Stafford FAQ
Can I regrade my Stafford yard if it sends water onto a neighbor?
No. Stafford prohibits grading that diverts or concentrates stormwater onto adjacent properties; significant work requires plan review and a permit.
Is detention required for new development?
Detention or other mitigation is commonly required when development increases impervious cover or peak runoff, subject to engineered drainage review.
Compare other topics
See how Katy and Stafford compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool