THE MAPLE STREET CHAPEL
The majority of the chapel's basement is crawl space, which is of very little value, except for some storage potential. What we really would like to do is a complete excavation of the basement (tending to structural needs as it is done), including adding a sewer system to the building, allowing for restrooms. But this project would cost hundreds of thousands of dollars, so let's get real.
The parts of the basement that are full-depth usable areas have a serious issue with water. This makes those areas essentially unusable for storage or as a facility, and presents a hazard to the heating & air conditioning plant.
This problem is two-fold:
The main/north area (under the sanctuary)
floods due to a floor that pitches
“fountains” in through the foundation walls in the boiler room (under
At first glance, it would appear that the main/north area would not have a problem with flooding, because it is 2’ shallower than the boiler room, which is where the sump pit & pump are located. The problem that arises is that the floor pitches down to the north, with the north end approximately 6” lower than the south end. This drawing illustrates this condition (with north being to the left).....
.....which results in 6” of water at the north end of the main/north (under sanctuary) area.
The boiler room does not flood per se, but water actually “fountains” in during a rainstorm. This water flows across the floor to the sump pit where it is pumped away. But this condition makes the room unavailable for practical use, and in the location shown below, the water sprays against the side of a boiler.
This is a description of the basics of the generally-used solution to water in an existing basement. There are subtle variations according to the individual site conditions, which this report will not attempt to define. We would leave such details up to the contractor we have chosen as best-qualified.
leaks, such as the places that are currently “fountaining” water
A trench is made around the perimeter on
the inside of the walls by breaking
A thin, tough barrier is applied to the
insides of the walls beginning at a
A pipe or “French drain” is placed in the
trench which routes the water to
is installed on the top of the trench to re-establish a continuous
In the above drawing, the barrier is referred to as “DRY-COVE”.
It should run up to ground level, higher than shown in the drawing.
The pipe or “French drain” is referred to
as “PERMA-DRAIN” in the drawing.
This is a rough idea of what it would look like with the barrier and perimeter trench completed, before pouring the concrete to re-level the floor.
Cost and Financing
We are obtaining multiple bids, but it seems as if the overall budget for this project will be about $10,000.
The current situation is not a crisis, so we are not going to rush out and do the project until we have the funds to cover it, whether these come from a grant or we gradually save the money.
With elimination of the water problem, the basement could be fixed up further, including better lighting, heating, and a general facelift. This would be of some considerable value:
space is currently at a premium, and storage of much of the
Due to the absence of plumbing for
restrooms, the chapel itself is not a