City of South Salt Lake

South Salt Lake Stormwater Design Manual

CityUtahhighNo

Open source PDF ↗Official agency page ↗

Fields not found in document: design_criteria.required_hydrologic_hydraulic_software

Other manuals in Utah: Salt Lake City

Document Metadata

Jurisdiction level

municipality

“The City of South Salt Lake implemented ordinances for storm water management”
Section 1.3, Page 1

State

Utah

“The State of Utah MS4 Permit”
Section 1.2, Page 1

Version / edition

July 2020

“July 2020”
Cover

Adoption / effective date

2020-07

“July 2020”
Cover

Last revised date

2020-07

“July 2020”
Cover

Relationship to state manual

independent

“The federal, state, and local regulations shall be followed for all stormwater discharge and design.”
Chapter 1, Page 1

Design Criteria

Design storm return periods (years)

10-year, 25-year, 50-year, 100-year

“The City of South Salt Lake requires 100 years 24 hours storm event for the new development/re-development hydrology calculations... Table 5-1 South Salt Lake City 24-hr Storm Event Intensity Rate... 10-year* 25-year* 50-year* 100-year”
Section 5.2 and Table 5-1, Pages 5-9 to 5-10

Water quality volume method

80th percentile storm volume using 0.6-inch precipitation depth (d80) with volumetric runoff coefficient (Reese or NRCS soil group method); V80 = RV × d80 × A.

“For new developments, the new MS4 permit requires 80th percentile storm precipitation for the total disturbed area... 80th Percentile: 0.6 inches... V80 = RV × d80 × A”
Sections 3.1 and 3.2, Pages 3-4 to 3-5

Peak flow calculation method(s)

Rational Method, NRCS Curve Number Method (TR-55)

“The City of South Salt Lake allows Rational Method and SCS Curve Number Method (NRCS TR-55 Hydrology Design Method) for the design of hydrology system.”
Section 5.1, Page 5-9

Required hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Bioretention Cells, Bioswales, Rain Gardens, Tree Box Filters, Vegetated Strips, Detention Ponds, Retention Ponds, Low Impact Development BMPs

“Sheet BR – Bioretention Cell... Sheet BS – Bioswale... Sheet RG – Rain Garden... Sheet TB – Tree Box Filters... Sheet VS – Vegetated Strips”
Appendix A, Page 15