Draining Water in Sidewalk
Draining Water in Sidewalk
(OP)
I am working on a residential development project on a flat site. One portion of the project has a sidewalk running through the backyards of single family homes. Does anybody know any reason why I cannot drain the backyards towards the sidewalk and then have the sidewalk drain towards a proposed infiltration basin? The owner wants this area to remain relatively flat without the need for a bunch of low points and inlet structures.
Thanks.
Thanks.





RE: Draining Water in Sidewalk
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
B+W Engineering and Design
Los Angeles Civil Engineer and Structural Engineer
http://bwengr.com
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
RE: Draining Water in Sidewalk
What am I missing?
RE: Draining Water in Sidewalk
For the trench drain design, I suppose intermittent inlets to a storm sewer might work, again assuming some place off site is lower for that storm sewer discharge.
RE: Draining Water in Sidewalk
"then have the sidewalk drain towards a proposed infiltration basin"
This statement makes me think the profile of the sidewalk would have no low points, but maybe a "flat" grade (i.e. 0.3%-0.5%). In this scenario, curb and gutter attached to he sidewalk would protect the sidewalk from the surface runoff and still move the water towards the infiltration basin. It may be even simpler to use a detached concrete pan (obviously lower than the sidewalk).
I'm also assuming that a grass swale is not an option due the need for a steeper profile grade (in my parts 2% is the minimum preferred grade).
RE: Draining Water in Sidewalk
Interesting situation. Reminds me of my step daughter's place. A condo where they jammed the buildings close together, maybe 30 feet between front entry walls and with a sidewalk down the middle. All grades go to that walk and it forms the drainage way. Total length of the walkway about 60 yards. Enough room for a fire truck, but no turning around. I'd guess no more than 1% lengthwise and maybe 2% to the walk from building.