|
|
|
Re-Line Equivalent Repair
|
|
A
Device for Cost Reduction
EXAMPLE:
A 5000 ft. long
un-reinforced sewer pipe is structurally damaged and some of
its joints are found infiltrating. Apart from sustaining
chemical erosion, the general experience in the industry has
found that the repair need is found at around 6% of the
length of the pipe. It translates into 60' (6%)
of pipe needing repair for every 1000 ft. of its length.
The unit cost of spot repair
is usually found to be 3 to 5 times as high as re-lining.
| Spot
Repair cost: ~
$375/ft* |
Relining
Cost: ~$65/ft** |
| Assuming
that the high spot repair cost of 8" (200mm) sewer is
more than five times the
cost of re-lining, it seams that relining is a better choice.
but is it? |
|
The Spot
Repair by GROUTING SLEEVE/SewerSealer Sleeve would fix
only what needs fixing, bringing the Spot Repair cost
to only ~$22,500 ($375x60') |
Relining
would extend over the entire length of the pipe. This would cost ~$65,000
($65x1000'). |
The
Saving: $65,000-$22,500=$42,500
|
References:
*
Link-Pipe Inc., 1998 prices.
**
United States Environmental Protection Agency: Kung'u (1998),
Burkhart (1998), Cost in 1998 dollars.
Note:
-
These
costs are an indicator of some project costs, but each
project cost is site specific.
-
By
use of Spot Repair the savings from every 1000 ft. of restored
pipe will permit another 2,000 ft. of pipe to be rehabilitated
from money that otherwise would not be available.
<< Back>>
|
|
