Des Moines / Iowa SUDAS

SUDAS Design Manual — Chapter 2 Stormwater

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Compare each cited field to the official PDF before relying on it. What this means

SUDAS Ch.2 used as Des Moines design reference alongside ISWMM; consider adding ISWMM criteria chapter later. Pipeline excerpt repair removed 2 unlocated citation(s).

Fields not found in document: document_metadata.adoption_or_effective_date, document_metadata.last_revised_date, design_criteria.required_hydrologic_hydraulic_software, document_metadata.state_code, document_metadata.relationship_to_state_manual

Other manuals in Iowa: City of Cedar Rapids, City of Davenport, Iowa, Iowa

Document Metadata

Jurisdiction level

City

“Iowa Statewide Urban Design and Specifications”
Title

State

Not found in document

No evidence cited

Version / edition

Chapter 02 (SUDAS Design Manual)

“Chapter_02.pdf SUDAS Design Manual”
Source

Adoption / effective date

Not found in document

No evidence cited

Last revised date

Not found in document

No evidence cited

Relationship to state manual

Not found in document

No evidence cited

Design Criteria

Design storm return periods (years)

2-year, 10-year, 100-year

“minor (or ordinary) storm recurring at regular intervals, generally 2 to 10 years / major ... 100 year storm event”
Minor and Major Design Storms

Water quality volume method

Defines Water Quality Volume (WQv) and Recharge Volume (Rev). City of Des Moines also adopts Iowa Stormwater Management Manual (ISWMM) for post-construction practices; SUDAS Chapter 2 covers conveyance, detention practices (2G), and minor/major design storm concept.

“Water Quality Volume, WQv”
Definitions / criteria

Peak flow calculation method(s)

Minor design storm (generally 2- to 10-year) for conveyance, Major design storm (typically 100-year) for flood routing, Detention basin design methods (Section 2G), Master drainage plan flow routing where available

“2G Detention Practices / Detention Basin Design Methods”
Chapter 2G

Hydrologic/hydraulic software

Not found in document

No evidence cited

Approved BMP categories

Detention practices, Storm sewer / intake conveyance, Water quality / recharge volume practices (cross-ref ISWMM)

“Detention Practices / stormwater facilities”
2G