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what to do to raise driveway with rain water flooding issue
Posted on 7/21/18 at 11:36 pm
Posted on 7/21/18 at 11:36 pm
i have a driveway i want to put a metal bldg garage on it
the trouble is, with every heavy rain the driveway puddles about 1/2 of rain water because its "nearly" level with the surrounding dirt.
as soon as the rain stops the water is gone in a minute or two but it will be getting into my garage if i build on it without raising it up somehow.
what are my best options short of completely busting out a 24ft x 40ft section of driveway just to raise it 2" above the grade of the yard so it doesnt hold water?
someone told me, that in order to pour a new concrete driveway over existing concrete, the area being poured has to be a minimum of 4" thick or it will crack. the problem with that is i cant have a 4" high driveway edge or my lawn mower can never cross over it plus i would need to transition the new height down to the existing driveway height. another consideration is it becomes a very serious tripping hazard and i cant fill in the yard any more to reduce that or it creates more drainage issues holding water.
is it feasible to try and build a 4"high x 6" wide curb all the way around like a levee system to stop the water from getting in and install the building onto that?
what about getting a 2" layer of asphalt spread on top of the whole existing driveway? would that be a mistake? would it stick good, or would it crack and crumble and start coming up after a few years, maybe sooner?
the trouble is, with every heavy rain the driveway puddles about 1/2 of rain water because its "nearly" level with the surrounding dirt.
as soon as the rain stops the water is gone in a minute or two but it will be getting into my garage if i build on it without raising it up somehow.
what are my best options short of completely busting out a 24ft x 40ft section of driveway just to raise it 2" above the grade of the yard so it doesnt hold water?
someone told me, that in order to pour a new concrete driveway over existing concrete, the area being poured has to be a minimum of 4" thick or it will crack. the problem with that is i cant have a 4" high driveway edge or my lawn mower can never cross over it plus i would need to transition the new height down to the existing driveway height. another consideration is it becomes a very serious tripping hazard and i cant fill in the yard any more to reduce that or it creates more drainage issues holding water.
is it feasible to try and build a 4"high x 6" wide curb all the way around like a levee system to stop the water from getting in and install the building onto that?
what about getting a 2" layer of asphalt spread on top of the whole existing driveway? would that be a mistake? would it stick good, or would it crack and crumble and start coming up after a few years, maybe sooner?
This post was edited on 7/21/18 at 11:38 pm
12
Posted on 7/21/18 at 11:38 pm to keakar
Could you just add a channel drainage edge?
This post was edited on 7/21/18 at 11:40 pm
Posted on 7/21/18 at 11:47 pm to keakar
Dig a ditch
Posted on 7/21/18 at 11:53 pm to keakar
channel the rainwater to drain away from the concrete would be your least expensive solution.
Posted on 7/21/18 at 11:54 pm to keakar
quote:
is it feasible to try and build a 4"high x 6" wide curb all the way around like a levee system to stop the water from getting in and install the building onto that?
If it were me, I'd break out ~1 ft around the edge and repour a slighly raised footer. A lot of work, if you don't know wtf you're doing.
Posted on 7/21/18 at 11:59 pm to keakar
Why not just pour a new slab for the building and step up into it for the 4" change?
Posted on 7/22/18 at 12:21 am to keakar
Get an engineer to figure out the weight load. They may suggest adding cement on top of it and dig several pilings to spread the weight.
Posted on 7/22/18 at 12:50 am to keakar
Why not put your metal building above ground like your trailer?
Posted on 7/22/18 at 12:58 am to keakar
Easy, just put it on some sticks
Posted on 7/22/18 at 1:06 am to keakar
I would just dig very shallow swales away from the driveway if you have room to throw the the existing soil elsewhere.
The grass will abosrb most of the runoff
The grass will abosrb most of the runoff
Posted on 7/22/18 at 1:34 am to keakar
Lower your yard.
Posted on 7/22/18 at 2:32 am to 6R12
quote:
Get an engineer to figure out the weight load. They may suggest adding cement on top of it and dig several pilings to spread the weight.
Posted on 7/22/18 at 3:42 am to keakar
It would be easier to cut into the concrete and make some drainage strips and run drainage along the sides as well.
Posted on 7/22/18 at 9:53 am to MrLarson
quote:
Why not just pour a new slab for the building and step up into it for the 4" change?
i thought about it, but since its a garage, it would need graded entrance ramps as well if it was a full 4" higher
to go the full pour a new pad route, i think its better to just dig up the old slab, then with it only 2" higher that small difference in height wouldnt be an issue at all to drive over. the added cost to dig up and haul off the old driveway cant be that much extra
Posted on 7/22/18 at 10:02 am to wallowinit
quote:
Lower your yard.
quote:
I would just dig very shallow swales away from the driveway if you have room to throw the the existing soil elsewhere.
The grass will abosrb most of the runoff
quote:
channel the rainwater to drain away from the concrete would be your least expensive solution.
i agree but there isnt much place for the water to go unless i make a catch basin and install a pump and plumbing to pump the water out of my yard to the street drainage basins
my yard is the low yard on the street, the driveway was already there when i got it and i added 4" of dirt to fill and level the yard to the point it no longer holds water when it rains. the only issue is now that the yard is graded at the proper height, the driveway is no longer raised above it, its like 1/2" above ground level so it holds water "during" heavy rain, but drains quickly as soon as the rain stops. the problem with that is i will get water "inside" the garage every time it rains.
if i were to dig a trench for the water it will just hold water there and still not drain so the only options i see are some way or raising the height of the garage somehow
This post was edited on 7/22/18 at 10:06 am
Posted on 7/22/18 at 10:06 am to MrLarson
quote:
Why not just pour a new slab for the building and step up into it for the 4" change?
Yep. Best answer so far and probably the easiest to carry out.
Posted on 7/22/18 at 1:11 pm to Homesick Tiger
quote:quote:
Why not just pour a new slab for the building and step up into it for the 4" change?
Yep. Best answer so far and probably the easiest to carry out.
yep, i am thinking along those lines as well, dig up existing driveway and have a new one poured that is 2" higher then the old one was sitting
not sure what it costs to have a 24x31ft driveway ripped up and then repoured though, but i bet its not going to be cheap
Posted on 7/22/18 at 1:17 pm to keakar
quote:
someone told me, that in order to pour a new concrete driveway over existing concrete, the area being poured has to be a minimum of 4" thick or it will crack. the problem with that is i cant have a 4" high driveway edge or my lawn mower can never cross over it plus i would need to transition the new height down to the existing driveway height.
you don't necessarily have to raise it 4" in order for it not to crack. If your driveway is cracked already, the cracks WILL chase to the top coat, whatever you put on it. I would suggest raising it 4" but putting a layer sand between that is about 1/2" thick and a layer of plastic so they two are separate. 4" isn't as bad as you think, you have to think that it will be under your new building.and the transition doesn't have to be long to tie to your new building but it does need to be pretty level.
quote:
what about getting a 2" layer of asphalt spread on top of the whole existing driveway? would that be a mistake? would it stick good, or would it crack and crumble and start coming up after a few years, maybe sooner?
most roads are only 2" to 3" of asphalt. This is more feasible that you think. However, the cracks will still chase through the asphalt and there is nothing you can do about that.
Posted on 7/22/18 at 1:18 pm to keakar
Raise the garage. It should always be higher than the driveway.
Let the driveway be sort of a spillway where rainwater can easily run off your yard onto the drive and into the street.
Let the driveway be sort of a spillway where rainwater can easily run off your yard onto the drive and into the street.
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