Changes

{{Clickable button|[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]}}

{{Clickable button|[[File:TTT.png|300 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]}}

[[File:Swale TTT.png|thumb|Swale element in TTT menu]]

[[File:Swale TTT.png|thumb|Swale element in TTT menu]]

[[File:Weir TTT.png|thumb|Weir elements may be incorporated as check dams for detailed design]]

[[File:Weir TTT.png|thumb|Weir elements may be incorporated as check dams for detailed design]]

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|Manning's Roughness||Lower numbers indicate less surface obstruction and result in faster flow. <br>

|Manning's Roughness||Lower numbers indicate less surface obstruction and result in faster flow. <br>

Suggested range for mown grass (dependent on density) 0.03 – 0.06 <ref name = SWMM> Oregon State Univ., Corvallis. Dept. of Civil, Construction and Environmental Engineering.; Environmental Protection Agency, Cincinnati ONRMRL. Storm Water Management Model Reference Manual Volume I Hydrology (Revised). 2016:233.https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100NYRA.txt  Accessed August 23, 2017.</ref>

Suggested range for [[Turf|mown grass]] (dependent on density) 0.03 – 0.06 <ref name = SWMM> Oregon State Univ., Corvallis. Dept. of Civil, Construction and Environmental Engineering.; Environmental Protection Agency, Cincinnati ONRMRL. Storm Water Management Model Reference Manual Volume I Hydrology (Revised). 2016:233.https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100NYRA.txt  Accessed August 23, 2017.</ref>

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|Upstream Invert (m)||Depth of swale invert above node invert at inlet end of the swale

|Upstream Invert (m)||Depth of swale invert above node invert at inlet end of the swale

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|Seepage (mm/hour)||Infiltration rate of native (or amended) soil

|Seepage (mm/hour)||Infiltration rate of native (or amended) soil

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{| class="wikitable"

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|Surface roughness (Manning’s n)||Lower numbers indicate less surface obstruction and result in faster flow. <br>

|Surface roughness (Manning’s n)||Lower numbers indicate less surface obstruction and result in faster flow. <br>

Suggested range for [[Turf: List|mown grass]] (dependent on density) 0.03 – 0.06 <ref name = SWMM> Oregon State Univ., Corvallis. Dept. of Civil, Construction and Environmental Engineering.; Environmental Protection Agency, Cincinnati ONRMRL. Storm Water Management Model Reference Manual Volume I Hydrology (Revised). 2016:233.https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100NYRA.txt  Accessed August 23, 2017.</ref>

Suggested range for [[Turf|mown grass]] (dependent on density) 0.03 – 0.06 <ref name = SWMM> Oregon State Univ., Corvallis. Dept. of Civil, Construction and Environmental Engineering.; Environmental Protection Agency, Cincinnati ONRMRL. Storm Water Management Model Reference Manual Volume I Hydrology (Revised). 2016:233.https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100NYRA.txt  Accessed August 23, 2017.</ref>

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|Surface slope (%)||If the slope > 3%, use [[Check dams]] to create temporary ponding, increase infiltration, and slow flow to reduce erosion.   

|Surface slope (%)||If the slope > 3%, use [[Check dams]] to create temporary ponding, increase infiltration, and slow flow to reduce erosion.   

|Swale side slopes (run/rise)||[[Enhanced grass swales #Design|Suggested value of 3 or 4 if design permits.]]

|Swale side slopes (run/rise)||[[Enhanced grass swales #Design|Suggested value of 3 or 4 if design permits.]]

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[[Category: modeling]]

[[Category: modeling]]