In 1997, The Town of Highland Park, Texas completed a Sewer
System Evaluation Study (SSES) on the
eastside wastewater collection system.
Recommended improvements from the study
were incorporated into a five-year
rehabilitation program. A portion of the
planned sewer line replacements is located
within the same easements that the water lines
occupy. The need to replace the water lines
due to condition, as well as to increase the
size from 6-inches to 8-inches, was addressed
by inclusion of the water main replacements
with the sewer replacement projects.
Earlier construction in similar easements
using open cut methods resulted in high
construction costs and lengthy, disruptive
construction periods. In other areas of the Town, trenchless technology has been used
successfully to replace sewer lines. Why not consider using the same technology to replace the
water? The Town believed if the contractor were to replace the water using trenchless methods,
the disruption would be minimal, and access would be less of a factor in the construction costs.
Once the decision was made to consider trenchless methods as a construction alternative to open
cut, the next step was to evaluate the types of trenchless systems that were available for water
replacement that have been successfully used for installation runs of at least 700 linear feet. This paper discusses pipe bursting, horizontal directional drilling, and project construction. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 7 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 06/15/2003 |
