| Line 20: | Line 20: | 
|  | *Side drainage ditches are often narrow, poorly graded,and can be difficult for homeowners to maintain |  | *Side drainage ditches are often narrow, poorly graded,and can be difficult for homeowners to maintain | 
|  | *Utilities are often in separate trenches rather than a combined utility trench |  | *Utilities are often in separate trenches rather than a combined utility trench | 
|  | + |  | 
|  | + | {|class="wikitable" | 
|  | + | |+ Opportunities for rural cross section | 
|  | + | |-  | 
|  | + | ! Within the roadway | 
|  | + | ! Within the boulevard | 
|  | + | |- | 
|  | + | |Use of [[permeable paving]] within the roadway is not economical when there are adjacent [[swales]] to filter and infiltrate runoff | 
|  | + | | | 
|  | + | *[[Bioswales]] or the use of [[perforated pipes]] beneath grass swales can reduce the nuisance problems associated with conventional swales like standing surface water and steep slopes | 
|  | + | *Permeable pavement systems can be used to stabilize and improve degraded shoulders | 
|  | + | *Converting degraded ditches to [[enhanced grass swales]] is the simplest LID improvement to make to residential rural cross-section roads. Driveway culverts can be slightly raised to provide storage and encourage infiltration. | 
|  | + | |} | 
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|  |  |  |  | 
|  | ===Typical opportunities for rural cross section=== |  | ===Typical opportunities for rural cross section=== | 
| Line 26: | Line 42: | 
|  |  |  |  | 
|  | '''Within the boulevard:''' |  | '''Within the boulevard:''' | 
| − | *[[Bioswales]] or the use of [[perforated pipes]] beneath grass [[swales]] can reduce the nuisance problems associated with conventional swales like standing surface water and steep slopes
 |  | 
| − | *Permeable pavement systems can be used to stabilize and improve degraded shoulders
 |  | 
| − | *Converting degraded ditches to [[enhanced grass swales]] is the simplest LID improvement to make to residential rural cross-section roads. Driveway culverts can be slightly raised to provide storage and encourage infiltration.
 |  | 
|  |  |  |  | 
|  | ===Urban cross-section=== |  | ===Urban cross-section=== |