Al Tahoe Phase II - Contech Engineered Solutions

Al Tahoe Phase II
South Lake Tahoe, California
Storm Sewer
Project Team Members:
Owner:
City of South Lake Tahoe
Engineer:
Manhard Consulting Ltd
Contractor:
Burdick Excavating
Technical Description:
• Eagle Corr PE™ 80-ft. of 12-in. perfo
rated
225-ft. of 15-in. perfo
rated
• Stormwater Management StormFilter® (2)
Installation Date: June 2010
To restore the Lake Tahoe Basin, the Federal Government joined
with California, Nevada and the Tahoe community and embarked
upon a 10-year, $900 million cleanup effort and implemented
the Lake Tahoe Restoration Act. As part of the endeavor, the City
of South Lake Tahoe is focusing on improving erosion control
and water quality by keeping fine sediment and nutrients out
of the Lake and reducing or treating the snow melt and storm
water runoff running directly to the Lake.
The City worked with Manhard Consulting Ltd to chose Eagle
Corr PE pipe in order to help manage a portion of the runoff. The
site had a small footprint and Eagle Corr PE was an ideal gravity
flow drainage solution. The corrugated exterior of the high
density polyethylene (HDPE) pipe provided structural strength
and the smooth interior provided maximum hydraulic efficiency. Also, the superior strength-to-weight ratio
and flexible conduit design also enabled it to support the loads and associated cover heights.
Burdick Excavating installed 80 -ft. of 12 inch perforated, 225 -ft. of 15 inch perforated, 1,629 -ft. of 18 inch
perforated and 977 -ft. of 24 inch perforated Eagle Corr PE pipe. Two Stormwater Management StormFilters
were also installed to treat the stormwater runoff.
“The StormFilters were set in our excavation by crane and went together flawlessly on a precipice above Lake
Tahoe,” said Linda Burdick of Burdick Excavating.
Considering the various challenges associated with the tight construction limits, community impact mitigation
and utility conflicts, Eagle Corr PE-ft.s handling ease and speed of installation were extremely important
to the successful installation. Eagle Corr PE was ideal for gravity flow in the site-ft.s small footprint and the
StormFilters were a perfect solution for stormwater treatment.
“CONTECH has been providing us with outstanding design and delivery for many years, and this project was
no exception,” said Burdick. “The ease of handling due to the weight of each stick of HDPE, as well as the slip
joint connection, made installation efficient and therefore economical.”
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