Drainage Infrastructure in Place

Although the days are very short, the weather was amazing today. It was hot in the beautiful sunshine, allowing the team to get the wire mesh attached to the soil walls and continue grooming the 3/4 inch crushed rock.

The infrastructure under the house will never been seen again, and this is an area where it is easy to cut corners as it is difficult to verify. The photos below show that the design of the drains is being followed, and the actual drains are being constructed as per the design (plans).

There are only two penetrations of the waterproofing. One penetration is in the window well (see below).

Drain in window well.

Drain in window well.

The other penetration of the waterproofing is in the stairwell (see below). In both photos, you can see the black dimpled drain material against the soil that is covered with the wire mesh. The drain material is to allow a path for water so it flows down the outside of the walls to the crushed rock, where the water will then flow into the perforated pipes, which then flow into the sump pit. The wire mesh is for the shotcrete lagging on the vertical soil wall.

Drain in stairwell and groomed crushed rock for plumbing.

Drain in stairwell and groomed crushed rock for plumbing.

The two drains that are from the window well and stair well are joined prior to being attached to the sump pit.

Drains to sump pit.

Drains to sump pit.

Jorge and Tim were reviewing the plans to ensure that the insulation that will arrive on Monday can be placed exactly where it is required. The insulation will be either Owens Corning Foamular 400 or Dow’s Highload 40. Both of these competing products are high compressive strength (40 lbs per sq inch) and R-10 insulating value (2 inches thick). We are insulating the slab because of the radiant heating in the slab.

Tim and Jorge reviewing plans.

Tim and Jorge reviewing plans.

Craig Butcher, Chief Safety Officer from TEAMWRKX, our general contractor, came to the site to review the safety practices in place to date.

Craig Butcher arrives on site to review safety.

Craig Butcher arrives on site to review safety.

Craig liked the safe and secure site, noting the railings around the temporary site office were looking good. As we move into the next phase of construction, he will be arranging for some additional signage and recommended that we follow several leading safety practices. One of the objectives of this project is to have a safe and secure site, with no injuries.

Railing in place around temporary site office.

Railing in place around temporary site office.

After the work had shut down for the day, one of our neighbors, John McLaren, dropped by to see the progress. John lives around the corner on Daves Avenue and, in July 2008, wrote a letter to Monte Sereno’s Site and Architecture Commission in support of our proposed development. He commented that, to date, the construction activity on our site has not bothered him or his family.

John McLaren reviewing progress to date.

John, taking a quick call, while observing progress to date.

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