Iowa Stormwater Management Manual

The following table of contents includes links to Version 2 (dated December 5, 2008) of the Iowa Stormwater Management Manual. The manual will be updated from time to time as review of the text and sample problems take place. Some sections remain to be developed.

The changes made since Version 1 (dated February 19, 2007) are as follows:

All the documents are pdf files.

2A  General Information 345 kb

2A-1 General Information 73 kb pdf

2A-2 Planning and Design Principles 176 kb pdf

2A-3 Stormwater Regulations and Permitting 63 kb pdf

2A-4 Stormwater Management Criteria 53 kb pdf

2A-5 Project Drainage Report 49 kb pdf

2B  Unified Sizing Criteria 192 kb

2B-1 Unified Sizing Criteria 192 kb pdf

2C  Stormwater Hydrology 6.99 mb

2C-1 General Information for Stormwater Hydrology 139 kb pdf

2C-2 Rainfall and Runoff Analysis 188 kb pdf

2C-3 Time of Concentration 312 kb pdf

2C-4 Rational Method 134 kb pdf

2C-5 NRCS TR-55 Methodology 381 kb pdf

2C-6 Small Storm Hydrology 281 kb pdf

2C-7 Runoff Hydrograph Determination 1.12 mb pdf

2C-8 Low-Impact Development (LID) Hydrology 2 mb pdf

2C-9 Detention Storage Design 182 kb pdf

2C-10 Channel and Storage (Reservoir) Routing 466 kb pdf

2C-11 Inlet Sediment Forebays 269 kb pdf

2C-12 Detention Basin Outlet Structures 2.17 mb pdf

2C-13 Water Balance Calculations 78 kb pdf

2C-14 Downstream Hyrologic Assessment 178 kb pdf

2D  BMP Types and Applications 276 kb

2D-1 General Information for BMPs 27 kb pdf

2D-2 Non-Structural Controls 20 kb pdf

2D-3 Structural Controls 263 kb pdf

2E  Infiltration Practices 5.19 mb

2E-1 General Information for Infiltration Practices 220 kb pdf

2E-2 Infiltration Trenches 1.6 mb pdf

2E-3 Infiltration Basins 1.8 mb pdf

2E-4 Bioretention Systems 1.7 mb pdf

2E-5 Soil Quality Restoration 202 kb pdf

2E-6 Native Landscaping 149 kb pdf

2E-7 Soils Testing Requirements for Infiltration Practices 125 kb pdf

2F  Filtration Practices 2.0 mb

2F-1 Sand Filter 1.1 mb pdf

2F-2 Design of Surface and Perimeter Sand Filter 747 kb pdf

2F-3 Underground Sand Filter 303 kb pdf

2G  Detention Practices 2.3 mb

2G-1 General Information for Detention Practices 267 kb pdf

2G-2 Dry Detention 866 kb pdf

2G-3 Wet Detention 1.3 mb pdf

2H  Stormwater Wetlands 1.02 mb

2H-1 General Information for Stormwater Wetlands 1 mb pdf

2H-2 Design of Stormwater Wetlands 75 kb pdf

2I  Vegetated Swale Systems 2.02 mb

2I-1 General Information for Vegetated Swale Systems 497 kb pdf

2I-2 Grass Swales 807 kb pdf

2I-3 Dry and Wet Swales 718 kb pdf

2I-4 Vegetated Filter Strips 320 kb pdf

2J  Pavement Systems

2J-1 General Information for Pavement Systems

Section under development - please refer to other resources

2J-2 Permeable Concrete Pavers

Section under development - please refer to other resources

2J-3 Modular Pavement Systems

Section under development - please refer to other resources

2J-4 Portland Cement Pervious Concrete Pavements

Section under development - please refer to other resources

2J-5 Porous Asphalt Pavement

Section under development - please refer to other resources

2K  Mechanical Systems

2K-1 General Information for Mechanical Systems

Section under development - please refer to other resources

2K-2 Hydro-Dynamic Devices

Section under development - please refer to other resources

2K-3 Gravity Separator

Section under development - please refer to other resources

2K-4 Catch Basin Inserts

Section under development - please refer to other resources

2L Chemical Treatment for Turbidity Removal

2L-1 General Information for Chemical Treatment

Section under development - please refer to other resources

2L-2 Coagulation/Flocculation

Section under development - please refer to other resources

2M Storm Sewer Design 643 kb

2M-1 General Information for Storm Sewer Design 66 kb pdf

2M-2 Groundwater Barriers and Outlets 67 kb pdf

2M-3 Street Flow and Intake /Manhole Capacity 328 kb pdf

2M-4 Storm Sewer Sizing 353 kb pdf

2N Design of Culverts 1.36 mb

2N-1 General Information for Design of Culverts 193 kb pdf

2N-2 Culvert Hydraulics 1.2 mb pdf

2O Open Channel Flow 508 kb

2O-1 Channel Types and Structures 62 kb pdf

2O-2 Open Channel Flow 459 kb pdf

2P Stormwater Easements

2P-1 Stormwater Easements 10 kb pdf

References

2Q-1 References 50 kb pdf

CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

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