Foundation excavation assessment in Boulder City
• 0:03 - 0:33 Are there other possible change orders are if we have too much concrete and we need to take some of that to the dump. And also I don't know what the Tipping fees are going to be for the material that we will halt to the dump. So that is an unknown and then if we have topsoil to Holloway, we will be hauling that to the dump and what will the Tipping fees beyond that?
• 0:33 - 0:55 Is as you can see it's not a very large space here and our topsoil could be rather deep in this area. So they're made there is a unpredictable amount of Holloway for our topsoil and we're going to assume that the customer and the contractor are going to be okay with. • 0:58 - 1:04 Using and replacing this sod into the.
• 1:07 - 1:30 Into this area over here. We'll be building it up all the Rocks over there. And oh also we will be needing to bring in plywood because once we get all this removed will then be accessing that concrete for removal vis-à-vis plywood that we will be putting down on the lawn. So as not to damage it.
• 1:31 - 1:34 With our equipment and then removing that concrete from there. • 1:36 - 1:50 We'll be accessing that area breaking the concrete with a with our rock hammer and the loader and then swinging it into here with the excavator. Once all of this material has been removed.
• 1:52 - 2:05 And so will be removing this material from here and then basically shuttling it with the loader through here and over into that area behind those plantings there and those plantings will be removed as well. • 2:06 - 2:31 So that's the long and short of it. There's several mobilizations involved here one probably just to get everything ready for excavation. And then I'm assuming we can probably just go ahead and dive right into excavation. Well, we'll probably actually want to dig our utility trench over into here.
• 2:32 - 2:41 Hmm, how do we do that? Well want to dig our utility trench into the foundation then we will. • 2:44 - 3:10 Excavate for our concrete footings and then we'll put a conduit through the concrete footings for our our utility. I execute our utility trench here and then we'll back fill all of this and get it ready for the slab on grade will backfill and compact all of this and then we will.
• 3:14 - 3:41 Backfill our utility trench at that point after backfill of concrete here. There's liable to be a mobilization of second mobilization for the back fell from the initial excavation in the site prep. And then after we finish our our compaction in here, I will do any final clean up any touch-ups. We are looking to put. • 3:41 - 4:01 A straw wattle basically right in here where we're going to rip out all this landscaping and we'll have a straw waddle that will separate this construction zone and the future parking Zone from the existing lawn and the existing Landscaping that is not to be disturbed or damaged.
• 4:06 - 4:14 So yeah, I think I don't know just intuitively. I'm thinking it's going to be somewhere around 20 grand. • 4:18 - 4:47 We will want to verify that we have domestic water supply for our compaction. I anticipate this is going to be a very clay-like material. Maybe it's going to be more Sandy, but we will be using a jumping jack compactor in the event that we do have a clay-like material here and we'll want someone like Blake or someone who really knows and understands compaction to be leading this portion of the job, especially with the backfill and probably with the excavation of the foundation.
• 4:47 - 5:01 As well and then we want to sort of a landscape sensitive individual. Maybe someone such as Jordan to do something like prepping all of this area for the.
• 5:03 - 5:32 For the parking and getting the job site ready for for excavation of the footings. I think that about covers it. Oh this this parking area here is going to drain out this way. So it's going to kind of come and and dive off the alley that little high spot right there. We'll get graded down to where that will basically get graded to come in and drive.
• 5:33 - 5:35 In basically and then you can drive into the garage this way. • 5:37 - 6:00 But the water is essentially going to come here and it will go in there and then it will flow out this way basically right in this corner of the garage or of the parking area by the garage. So that'll just come right here and go then down the alley so that's how that's going to get graded. Hopefully that makes sense.
• 6:02 - 6:21 All right, so I did just measure the depth of this sewer line. It is 4 feet deep to the top of pipe from our existing grade right at the gravel there. So this is our back corner and our excavation will be out foot and a half or so almost two feet. • 6:22 - 6:26 On the outside and a foot and a half on the inside.
• 6:28 - 6:57 So we'll be right over that sewer line. But as we move out to the street, it is dropping so we should be fine not hitting that we will want to be careful not to mess up those risers those standpipes the cleanouts because that will make our lives much more difficult to have to redo those and we will want to be trenching right over the top at 18 inches over that.
• 6:58 - 7:28 Come in to the garage right here. There's a retaining wall right here. So we're going to be careful with that would like to have some of these trees limbed back a bit to give ourselves more room easy visibility and just less brushing up against our Machinery. So that is one thing I would like to request that the customer to go ahead and limb these back right to the right. • 7:28 - 7:58 Attaining wall here this retaining wall. We will leave it intact is doing a really nice job retaining the Earth there. One question for Jacques is just if there is any concern for the frost depth being deeper than what meets the eye here because of that shelf there. So that's one thing that I did forget to ask him. But let's see here. It actually looks like it is not really retaining much dirt. So there's no.
• 7:58 - 8:04 Certain there. This is fine. It's just a sloping off there and just a nice little edging piece. • 8:07 - 8:36 So that is about it. We are going to have a slope inside the garage coming up this way that I believe it would be two percent but I don't recall will have to review the plans for that and then we will be doing the interior backfill as well. And so some unknowns is if there is any top soil underneath this gravel, what is the suitability for compaction of our soils once we remove this gravel?
• 8:36 - 9:06 We remove the wood. We remove the concrete. We remove the vegetation and The Mulch and then what are we left with are we left with a structurally sound soil base at that point that we can then just build up from or there is always a possibility that this soil under here could be just be topsoil and we'll discover that when we dig our footings and not before so that is a possible change order that will need to.
• 9:06 - 9:35 It determined in the field as rest is as far as all the rest of it goes a couple other unknowns are if we're what kind of soil are we going to have and does the contractor want to make a determination of using our native soil that's going to come out of this trench for the interior backfill of this thing as well as the exterior back full right here because this is a parking area. So we will need to be achieving complete compaction on the outside of this wall and on the inside of this wall.
• 9:37 - 10:06 At the the front entrance of the garage around the perimeter here, we can achieve 95 percent compaction in my opinion. The contractor may have a different opinion about that. But on the exterior is not as crucial because a minor amount of settling is not is not too bad. Do we have a perimeter drain at the base of the foundation? That's another question and I didn't see one on the plans. So.
• 10:06 - 10:10 So if there is not one called for that's fine, but that's just. • 10:12 - 10:13 Worth noting I suppose. • 10:17 - 10:45 All right, this is Jesse. I performance Earthworks checking out this property for Jacques on 9/11 Ninth Street, and we're building a garage right here with a maroon car is and we're creating access right here coming in off the alley and we have a little bit of a grade change here. So basically I'm going to walk through quickly the work scope of this job will be pulling up. The fence posts will be removing these Boulders here.
• 10:45 - 11:15 And setting them aside over there right in between those trees will be removing all this top soil and vegetation a lot of the vegetation as well as these ties here will go to the dump into the landfill. This edging is nice material here can go to restore or the dump or set aside and possibly reused later here on this property there. • 11:15 - 11:45
Our sprinklers underground here, which will need to get cut as we discover the lines during excavation and then capped so that the sprinkler system remains intact all through here. All of this is not to be disturbed. We will be removing all of this concrete except for these two square panels that are underneath those buckets there those remain in place, but this Arc here.
• 11:45 - 12:15 Gets removed as well as this little crescent moon piece here this piece this piece this piece all these pavers will come out. This concrete will come out. This concrete will come out here and then all of this walkway concrete walkway will come out these pieces here will come out and these pieces here.
• 12:15 - 12:43 Here will come out there is a drain under here, which is not to be damaged. It is full of dirt now, but we don't want to damage this drain and the hopes that it could be restored and we may make have that restored that's not going to be off but they the customer may have that restored. All these Boulders are going to come out all these Boulders here all these Boulders here. • 12:46 - 13:15 These Boulders here will come out and this wall will come out basically right to this crack right there. All of this concrete will all get stockpiled into the parking area of the garage which is going to be right here and then we will use our rock hammer to break up the pieces into basically 12-inch - if there is any rebar in any of that will pull the rebar out and take that to the dump.
• 13:16 - 13:24 I don't think there's gonna be any rebar in that concrete and I think that it's all going to break up nicely and create really nice Phil here for this being the parking area. • 13:27 - 13:44 This is all going to be brought down and we will remove the topsoil that's here and all of this lawn and the topsoil and The Mulch and possibly some of the smaller plantings will all be. •
13:47 - 14:15 Basically filled in right here. This is going to be restored as a lawn area. And so that will make good soil for the lawn of the future that will go right here. There's going to be a retaining wall here, which we will not build but basically from right here nine feet out from the house will get filled with all of our tops. Oily material. We won't come up past. • 14:16 - 14:24 The current level of the lawn actually will be two inches below the current level of the lawn right here with our backfill of our.
• 14:25 - 14:37 Organic material on our soil Building Material then we're going to dig a trench which will be an 18 inch trench for the electrical through here. • 14:38 - 15:06 All the way through here and through this fence that will not be here anymore and out to the footprint of the garage. So now we'll go out here. I'll show you guys what's out here. So we have more ties and concrete that is going to the ties will go to the dump. The concrete will go into there.
• 15:08 - 15:37 A gravel here. We'll all get scraped aside into a stockpile that will then go and we'll probably put that into a stock pile right here where these roses are the Roses will get hauled to the dump. These posts were gonna pull out with a chain chain onto them and pull them out of the ground with the excavator and these posts will go to the dump roses will go to the dump larger plantings of go to the dump.
• 15:37 - 16:07 And all of this gravel can get stockpiled basically right where those Roses are. Hmm. And then once we get the concrete broken up and packed in there real nice into this area, then we will be able to spread. Let's see, what we'll do is we will excavate our footing trenches which will be 36 inches below our final grade. Which this is basically our.
• 16:07 - 16:27 Final grade right here. So we will do our footings about three feet wide. I believe maybe 40 inches wide. So three feet six inches wide just to give the concrete guys plenty of room to work. We do have a sewer line here. I will check the depth of the sewer line one.