The Water Authority's contractor first relined Pipeline 4 and then
followed up with Pipeline 3. Relining work is conducted via 40-foot-long
sections of pipe that are excavated to gain access to the interior of
the pipe and to introduce relining materials. These construction portals,
8 for Pipeline 3 and 8 for Pipeline 4, remained open for approximately
five months per pipeline. The same general locations were used for portals
for both pipelines. Not all portals were active at the same time, however.
Pipeline relining is done in several phases, and work shifted from one
portal to another depending on which phase was under way.
In addition to the construction portals, another 13 locations along
the pipeline will be used to support relining activities. Concrete,
ventilation and power may be introduced into the pipe at these locations.
No excavation will be necessary at these locations, which will be used
intermittently during the eight-month-long relining project.
| Portal 1 |
East of Stargaze Avenue and south of the intersection
of Laurentian Drive and Mediatarice Lane |
| Portal 2 |
South of Oviedo Way between Black Mountain Middle
School and the softball field at Mount Carmel High School |
| Portal 2A |
Needed only to reline Pipeline 4. South of Carmel
Mountain Road, west of Via Cima Bella adjacent to Via Tres Vista |
Portal 3 |
East of Salmon River Road across from the Rancho
Peñasquitos Public Library and San Diego Police Department
station |
| Portal 4 |
East of Salmon River Road immediately north of State
Route 56 |
| Portal 5 |
Between Salmon River Road and Orangeburg Avenue, south
of Calle de las Rosas |
Portal 6 |
On unpaved road in Los Peñasquitos Canyon
Preserve approximately one-quarter mile south of Calle de las Rosas |
| Portal 7 |
Between Mercy Road and Branicole Lane near the intersection
of Mercy Road and Kika Court |
Portals 8,
9 and 10 |
Next to Alemania Road south of Mercy Road
in Canyon Hills Resource-based Park, also known as Miramar Hill |
