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− | <font size=3>'''Open vegetated swale materials specifications | + | <font size=3>'''Open vegetated swale materials specifications.'''</font size><br> |
Link to this [[Open vegetated swale materials specifications|table]] | Link to this [[Open vegetated swale materials specifications|table]] | ||
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<th>Size</th> | <th>Size</th> | ||
<th>Note</th> | <th>Note</th> | ||
+ | <th>Design application</th> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>n/a</td> | <td>n/a</td> | ||
<td>soil with a higher percent organic content is preferred</td> | <td>soil with a higher percent organic content is preferred</td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>0.02” to 0.04”</td> | <td>0.02” to 0.04”</td> | ||
<td></td> | <td></td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>6” by 6” or 8” by 8”</td> | <td>6” by 6” or 8” by 8”</td> | ||
<td>do not coat with creosote; embed at least 3’ into side slopes</td> | <td>do not coat with creosote; embed at least 3’ into side slopes</td> | ||
+ | <td>dry swale, wet swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>6” to 12” diameter; notch as necessary</td> | <td>6” to 12” diameter; notch as necessary</td> | ||
<td>do not use the following, as these species have a predisposition towards rot: Ash, Beech, Birch, Elm, Hackberry, Hemlock, Hickories, Maples, Red and Black Oak, Pines, Poplar, Spruce, Sweetgum, Willow</td> | <td>do not use the following, as these species have a predisposition towards rot: Ash, Beech, Birch, Elm, Hackberry, Hemlock, Hickories, Maples, Red and Black Oak, Pines, Poplar, Spruce, Sweetgum, Willow</td> | ||
+ | <td>dry swale, wet swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>sand: 0.02” to 0.04” gravel: 1/2” to 1”</td> | <td>sand: 0.02” to 0.04” gravel: 1/2” to 1”</td> | ||
<td>Mix with approximately 25% loam soil to support grass cover crop; see Bioretention planting soil notes for more detail</td> | <td>Mix with approximately 25% loam soil to support grass cover crop; see Bioretention planting soil notes for more detail</td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>varies (No. 6) or (1/8” to 3/8”)</td> | <td>varies (No. 6) or (1/8” to 3/8”)</td> | ||
<td>use clean bank-run gravel</td> | <td>use clean bank-run gravel</td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>1.5” to 3.5”</td> | <td>1.5” to 3.5”</td> | ||
<td></td> | <td></td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>6” rigid Schedule 40 PVC</td> | <td>6” rigid Schedule 40 PVC</td> | ||
<td>3/8” perf. @ 6” o.c.; 4 holes per row</td> | <td>3/8” perf. @ 6” o.c.; 4 holes per row</td> | ||
+ | <td>dry swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>size per requirements based on 10- year design flow</td> | <td>size per requirements based on 10- year design flow</td> | ||
<td></td> | <td></td> | ||
+ | <td>dry swale, wet swale, step pool</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
</table> | </table> | ||
− | < | + | |
+ | <noinclude> | ||
+ | [[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Swales]] | ||
+ | </noinclude> |
Open vegetated swale materials specifications.
Link to this table
Parameter | Specification | Size | Note | Design application |
---|---|---|---|---|
Dry swale soil | USCS; ML, SM, SC | n/a | soil with a higher percent organic content is preferred | dry swale, step pool |
Dry swale sand | ASTM C-33 fine aggregate concrete sand | 0.02” to 0.04” | dry swale, step pool | |
Check dam (pressure treated) | AWPA Standard C6 | 6” by 6” or 8” by 8” | do not coat with creosote; embed at least 3’ into side slopes | dry swale, wet swale, step pool |
Check Dam (natural wood) | Black Locust, Red Mulberry, Cedars, Catalpa, White Oak, Chestnut Oak, Black Walnut | 6” to 12” diameter; notch as necessary | do not use the following, as these species have a predisposition towards rot: Ash, Beech, Birch, Elm, Hackberry, Hemlock, Hickories, Maples, Red and Black Oak, Pines, Poplar, Spruce, Sweetgum, Willow | dry swale, wet swale, step pool |
Filter Strip sand/gravel pervious berm | sand: per dry swale sand gravel; AASHTO M-43 | sand: 0.02” to 0.04” gravel: 1/2” to 1” | Mix with approximately 25% loam soil to support grass cover crop; see Bioretention planting soil notes for more detail | dry swale, step pool |
Pea gravel diaphragm and curtain drain | ASTM D 448 | varies (No. 6) or (1/8” to 3/8”) | use clean bank-run gravel | dry swale, step pool |
Underdrain gravel | per pre-cast manufacturer | 1.5” to 3.5” | dry swale, step pool | |
Underdrain | ASTM D-1785 or AASHTO M-278 | 6” rigid Schedule 40 PVC | 3/8” perf. @ 6” o.c.; 4 holes per row | dry swale, step pool |
Rip rap | per local criteria | size per requirements based on 10- year design flow | dry swale, wet swale, step pool | |
This page was last edited on 4 August 2022, at 16:49.