City of Mesquite
Engineering Design Manual — Section 3 Drainage Design Requirements
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Full EDM Sections 1–9 PDF; drainage criteria concentrated in §3. Edition date not clear on extract.
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Other manuals in Texas: City of Amarillo, City of Arlington, City of Austin, City of Beaumont / Jefferson County Drainage District No. 6, City of Brownsville, City of College Station, City of Corpus Christi, City of Denton, City of El Paso, City of Fort Worth, City of Frisco, City of Garland, City of Grand Prairie, City of Houston, City of Killeen, City of Laredo, City of Lubbock, City of McAllen, City of McKinney, City of Pasadena, City of Pearland, City of Plano, City of Round Rock, City of San Antonio, City of Waco, Dallas / North Central Texas (iSWM), Harris County, Tarrant County, Texas, Texas Commission on Environmental Quality
Document Metadata
Jurisdiction level
City
No evidence cited
State
Texas
No evidence cited
Version / edition
Engineering Design Manual Sections 1–9
No evidence cited
Adoption / effective date
Not found in document
No evidence cited
Last revised date
Not found in document
No evidence cited
Relationship to state manual
independent
“independent city engineering design manual”
Coverage note
Design Criteria
Design storm return periods (years)
25-year, 100-year
“Table 3-1 ... Enclosed Storm Drain Systems and Inlets 100-year ... Detention and Retention Basins 100-year”
Table 3-1
Water quality volume method
Table 3-1: enclosed storm drains/inlets, roadside ditches, streets, culverts, channels, and detention/retention sized for 100-year (staged outlet for basins). Pedestrian bridges 25-year. Hydrology: Rational ≤200 ac; unit hydrograph / NCTCOG iSWM Hydrology Technical Manual for larger areas. Detention may be required per §3.9 / downstream assessment.
No evidence cited
Peak flow calculation method(s)
Rational Method (≤200 acres), NCTCOG iSWM Hydrology Technical Manual / unit hydrograph methods, Detention and retention facility design (§3.9), Downstream assessments (§3.10)
“current edition of the NCTCOG Integrated Stormwater Management (iSWM™) Hydrology Technical Manual”
§3.2
Hydrologic/hydraulic software
Not found in document
No evidence cited
Approved BMP categories
Enclosed storm drain systems, Open channels, Detention / retention facilities, Best Management Practices (maintenance plans required), Erosion and sediment controls (§3.11)
No evidence cited