Environmental and Geotechnical Issues
Sensitive Areas Construction on slopes,
which are formally viewed as "sensitive areas" in Washington State, is
generally frowned upon by permitting agencies. Most of these agencies will
allow a certain amount of tram, stairway, or trail building. Often a variance
is required in the permitting process. One of the advantages of Cable
Lift Aerial Trams is that they do not generally involve any construction,
grading, or alteration of the slopes they traverse. This is a strong argument
in the permitting process.
Track Lift Supports Track Lifts involve
supports for the tracks at regular intervals. These Supports are, by necessity,
on the slope, and are subject to more problems from bank slides, settling,
pressure from the slope uphill of the support, and undermining below the
support than an aerial-type tram. Also, from a builder's point of view,
building supports on a steep slope is difficult work. If the slope is
fundamentally stable and not too steep or long, these problems are minimized,
and a Track Lift is a good possibility.
Landing On The Beach Many Cable Lifts
land directly on the beach on the water front of Puget Sound. An anchor on the
beach attaches the two support cables that the gondola rides on. This anchor is
usually below grade, installed in one day, near the high tide line. The overall
impact of the Cable Lift is very low. Fisheries Department officials have
reviewed and approved this approach.
Visual Impacts Visually, the two support
cables of a Cable Lift blend into the landscape from even a short distance away
(say, one hundred feet), making them close to invisible. Anyone who has looked
at a staircase on a slope from a mile or more away can attest to their
prominent visual impact.
Noise The noise levels from Accumar
Cable Lifts and Track Lifts are very low, and can seldom even be heard from a
neighboring property. There are virtually no mechanical noises; the noise from
the electric hoist is comparable to running a clothes dryer. The gondola ride
is whisper quiet and smoother than track trams.
Pathways For The Tram Usually a path can
be located for a tram which misses any major trees or obstacles. The path needs
to be five to seven feet wide. Accumar will visit sites to determine the best
location for a tram.
Geotechnical (soils) Reports Local
permitting agencies and engineers require a geotechnical engineer to prepare a
report on the slope soils. Accumar can help arrange this. Accumar provides
engineered site-specific design drawings for each installation.
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