The morning call., 1892-01-07
RIVERS And HARBORS.
San Pedro Selected as a Deep Water HaF-
Dor Northern Ship Canal.

WASHINGTON, Jan. 6. - The board ap-
pointed to Investigate and report upon the
most available site for deep-water harbOr
on the Pacific Coast reported to Congress
to-day. The board says that after full
and careful examination it concludes that
the selection of site for deep water har-
Dor within the limits designated by the act
is restricted to the harboGs of Santa Monica
Bay and San Pedro Bay, and is of tile
opinion that San Pedro is the better of
these, and submits the alternative estimate
of the cost of breakwaters as follows:
If constructed Of rubble ana concrete.
81, 594, 49l; If constructed entirely of rubble
81, 126, LOG. AS presented by the Board of
Engineers as to location and the general
estimates of construction, the recommended
tiQns are concurred in by General Casey,
Chief Of the Board of Engineers. He saws
the difference in the cost of the two break
waters for the same areas of protection is
over 100000 in favor Of San Pedro and
when the other advantages OF San Pedro
ton had been properly made.
THE LAKE WASHINGTON CANAL.
The board Of engineers appointed 20 inyes-
tigate and report upon the project of con-
Structing a canal to connect the waters Of
Puget Sound with Lake Washington, re-
ported yesterday, and they say that the
CANAL connecting Lake Samish and Lake
Washington with the lock near Lake Wash
ingtOn to overcome the difference of 1O.5
feet In the level of the two lakes is esti-
mated TO cost S4,927230. The proposed
route and project for the canal connecting
Lake Washington with Puget Sound con-
templates the construction of a canal 2600
feet long so feet wide at the bottom. 1853
feet wide at the water-lne and % feet deep,
through the portage between Union Bay. in
Lake Washington, and Lake Union with a
masonry lock 400 feet long, 90 feet wide and
20 feet deep over the sill, and with a lift of
about ~ feet, the declining channels to
connect this canal with deep water 10 Lake
Washington and across Lake Union, aud
constructing a canal of 600 feet long, so
feet wide at bottom and 15S feet wide at
water-line, and rs feet deep. connecting
Lake Union along its outlet with the head
OF Salmon Bay.
TWO ROUTES CONSIDERED.
From the head Of Salmon Bay two routes
are considered by the bOard-One bv the
way of Salmon Bay and ShilshOle Bay and
with a lock near the sound 400 feet long 50
feet wide and 1916 feet deep. and a canal 80
feet wide a bottom, l5o feet wide at the
water line and 70 feet deep, to be constructed
across the neck OF land between the head of
Salmon Bay and Smiths Cove, With a lock
near the sound similar to that projected for
Shiishole Bay. The construction Of the
basin and the formation of the channel
through the shoals at the outlet Of the lock
are also Contemplated.
The estimated cost Of the proposed canal
between Like Washington and Puget
Sound by the two routes, not including
damages for the land submerged, is as fol
lows; Smtus Cove route, S3j000G0;
ShiIshOle Bay route. s., GOO. The
Sh;lshole Bay system costs $4,000 less
than Smiths Cove. But upon the other
hand the latter route possesses advantages
In that its entrance is in the harb0r Of
Seattle. whereas the entrance Of the other is
five and a half miles distant; and second
the Smiths Cove entrance and lock are less
exposed to b0mbardment by an enemy $
fleet For some reasons the Smiths Cove
route is 10 be preferred.
The report is signed by Mendell, Hand
bury and SimOns, the United States Board
Of Engineers.
TIE COLUMBIA AND WILLAMETTE.
Pursuant to an act Of Congress approved
September -, 1890, Major Thomas H. Hand
bury has reported upon the project Of secur-
ing twenty-five feet depth at low water
from Portland 10 the mouth If the Columbia
River Concerning the Willamette River he
says: 1t 10 contemplated that the expense
of closing the chute Oh the south side Of
Swan Island will be paid from funds now
available for the work under the present
project for Improvement He submits the
following estimates, viz. For the VILLAIN
ette-fOr dredging Swan Island bar sos, 800;
POstotiice bar. SS7, 400 For the Columbia
Rlver-St. Heiens bar additional work
necessary 10 present dixie, S26, 500; Martin
Island bar, $4,000; Wiker Island, $50, COO;
Snag Island. S237 900. The total for both
rivers is 1898, 20, and, adding 20 per cent
for contingencirs-Sl1 744--and cost OF one
dredging machine at $4,000, the total
would reach S772 400.