Difference between revisions of "Typical temporary stream crossing methods and their applicability"
m |
m |
||
| (4 intermediate revisions by the same user not shown) | |||
| Line 22: | Line 22: | ||
*Most common temporary stream crossing | *Most common temporary stream crossing | ||
*Most appropriate for short-term use | *Most appropriate for short-term use | ||
| − | *Generally appropriate for perennial or '''intermittent streams''' | + | *Generally appropriate for perennial or <span title="a well-defined channel that contains. water for only part of the year, typically during winter and spring when the aquatic."> '''intermittent streams'''</span> |
*Generally preferred over fords as disturbance to stream is limited to construction and removal | *Generally preferred over fords as disturbance to stream is limited to construction and removal | ||
</td> | </td> | ||
| Line 29: | Line 29: | ||
*Causes greatest obstruction to flow | *Causes greatest obstruction to flow | ||
*May damage channel cross-section; culvert crossings should be planned to limit the number of crossings needed | *May damage channel cross-section; culvert crossings should be planned to limit the number of crossings needed | ||
| − | *Not appropriate for streams that are vertically degraded or incised | + | *Not appropriate for streams that are vertically degraded or <span title="A stream channel in which the bed has dropped and as a result, the stream is disconnected from its floodplain. Incised channels are often referred to as degraded channels."> '''incised'''</span> |
</td> | </td> | ||
</tr> | </tr> | ||
| Line 36: | Line 36: | ||
<td> | <td> | ||
*Most appropriate for short-term use | *Most appropriate for short-term use | ||
| − | *Generally appropriate for ephemeral or low flow perennial streams | + | *Generally appropriate for <span title="a stream that flows only briefly during and following a period of rainfall in the immediate locality."> '''ephemeral'''</span> or low flow perennial streams |
*Used when bridge or culvert crossings are not feasible; typically very shallow streams where stream banks are less than 4 feet above the stream invert | *Used when bridge or culvert crossings are not feasible; typically very shallow streams where stream banks are less than 4 feet above the stream invert | ||
</td> | </td> | ||
| Line 48: | Line 48: | ||
<noinclude> | <noinclude> | ||
| − | [[ | + | [[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Erosion prevention]] |
</noinclude> | </noinclude> | ||
Latest revision as of 15:01, 24 July 2022
Typical temporary stream crossing methods and their applicability.
Link to this table
| Stream crossing type | Applicability | Limitations |
|---|---|---|
| Temporary bridge |
|
Use in large channels may require pier(s) or other supports, which increase disturbance to stream (see Construction recommendations and specifications) |
| Temporary culvert (pipe) |
|
|
| Temporary ford (drive-through) |
|
|
This page was last edited on 24 July 2022, at 15:01.