GHD was the lead design firm performing civil engineering and
site development design for Archer Western Contractors on the Black
Mountain Road Pipelines Project. The project involves construction
of approximately five miles of 36-inch through 48-inch potable
water transmission pipeline from Mira Mesa to Rancho Penasquitos in
San Diego. The project also involves construction of two miles of
24-inch reclaimed waterline paralleling the potable water pipeline
along much of the alignment. Included in the project are a tunnel
crossing of Los Penasquitos Creek to minimize impact to sensitive
habitat, complex traffic control required due to the alignment
following high traffic volume roads and coordination with CALTRANS
for crossing freeway right of way.
During preparation of the documentation required for the
selection process, GHD, Foxfire and Archer Western worked together
to develop plans and specifications to allow development of a
construction sequencing plan, detailed traffic control plans,
material quantity takeoff, and construction bid.
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