Evening star. [volume] (Washington, D.C.) 1854-1972, 1890-07-18

! Gravelly Point, and Sd, Below the Eastern
Branch at the first projecting point Of land
| above the naval magazine.
THE cAPAcITr OF TEE RIVER.
After thoroughly discussing these various
outlets the commission summarize the section
~ concluding that there 10 enough water how-
Ing in the river Of all times to dispose Of the
sewage OF at least OK, 900 inhabitants, pfovid.
tns u mineIed UNIFORMLY with the whole
| body Of the water and is not carried to place
where the suspended particles therein con-
tanned can deposit and cause ofense.
In view of this conclusion the commission
| conclude that there il NO doubt that the best
method Of disposing Of the sewerage at present
ana TOR long time 10 come is to discharge IL
directly into the channel Of the Potomac ut one
| or more suitable outlets.
The report concludes on the various outlets
, that the one discharging above the naval
the city that it can not return on the
Mood tide, and that the sewage of at least
500, 600 people can be discharged at this point
The outlet opposite 0ravclly Point 10 consd-
cred next in order Of merit, while Easily s Point
Is considered the least satisfactory.
PROTECTION FROM FLOODS
The report devotes a section to the protec-
ton Of low portions Of the city from river
floods and concludes that there two methods by
which the desired result can be obtained
one being to raise the low portion
OF the city above the elevation
reached by the freshets and to provide sewers
Of sufficient capacity to discharge the storm
water at the highest stages Of the river and the
other to prevent the entrance of the river water
by dikes and to provide for pumping the storm
water from the diked area Either method
the commission think, could be depended upon
and the question resolves itself into a question
OF relative cost. The former plan would cost
t,n6l -. i'll H.,
bikes. as stated above, would only cost about
q, SOC, 900.
In discussing the system to be chosen the
| commission thinks that population Of SOC, 600
should be provided for. The sewers, they
think, should be circular except in special
cases.
SEWAGE PUMPING.
The schemes contemplate pumping the
sewage, and in this connection the report says:
To pump the entire sewage Of city might at
first appear to be an undertaking too
great to attempt. but the difficulties in reality
are slight and there are many examples where
the system IL carried out. Sewage pumping
stations. the report says, are often found in the
centsrs of cities and are not in the slightest
| offensive.
THE RRJRCrEp PLANS.
Az has been stated, the commission consid.
cred in detail Ave plans for a sewage system.
Certain general features are common to all Of
them, All Of them provide for keeping the
storm water falling upon the higher ground
from descending into the low central district
To protect the low district against flooding
during freshets all the projects contemplate
the building of bikes. All the projects like
wise utilize those Of the existing sewers that
are IN fairly good condition, excepting the
one passing through the White lot from 18th
street to Il street, which is to be abandoned
because it descends 80 low that a discharge Of
| Its sewage and storm water. by gravity at a
proper outiall is impracticable.
All the projects likewise obviate the neces-
sity for preserving any part of the present b
street outlet canal. which can therefore be
filled up. They also do not require the use Of
the James creek canal, which will require fill
| ing up from the mouth of the old TibSr sewer
to the proposed dixie at N street.
THE FAVORED PLAN.
The plan which the commission recommend
is marked project one. The report in giving
an outline of this plan says that it contemplates
the delivery Of practically all the sewage at
the outlet north OF the naval magazine. Al
stated at the beginning interruptions will pre-
vent the discharge OF sewage into Rock creek.
Eastern Branch and the river and deliver IL to a
pumping station ut the foot of New Jersey
avenue on the Eastern Branch. At this station
the sewage will be lifted to sufficient height
80 that it can flow by gravity through iron in
verified siphons laid under the Eastern Branch
to Poplar Point. thence through brick sewer
| to the banks OF the river and then through
| iron outlet pipes to the channeL At the same
station there will be a pumping plant suite lent
to lit the storm water of the low district into
the Eastern Branch when the water in the lat
ter Is too high to permit OF discharge by
gravity.
INTERPRETING SEWERS.
The interceptsrs contemplated are numer.
Gus.
Tho F street and Easby's Point intercepter
will receive all the sewage and storm water
north OF street and also the flow of the New
York avenue sewer. II will likewise receive
the sewage and storm water from a consIdera-
BILE area west OF the White Lot and north of @
| and ID streets. Its outlet for storm water will
| be into the Potomac little south of Easily .
| Point.
The Az street intercepter will interct ut all
the area Of South Washington. It's outlet for
storm water will be into the Washington chan.
mel at NJ street.
Tho Tiber creek and New Jersey avenue in
terceptor will intercept the old Tiber sewer,
! and will discharge during storms into the
Eastern Branch at New Jersey avenue. II will
| also receive the sewage from the Capitol and
| Capitol grounds and intercept all other sewers
| between Its upper terminus and Virginia ave-
| nue..
will intercept the entire sewage Of the Rock
Creek valley.
The east side intercepter will receive the
| sewage OF the entire eastern part Of the city.
The Water and NJ street intercepter will in
| tercept all the sewage Of South Washington
| now diseharglng into the Washington channel
| and the sewage Of the James Creek valley
The Is street aud New Jersey avenue intercey-
ter will receive directly or through its branches
all the rain water Of the low district requiring
pumping. 1t will also receive at the upper end
! the contents OF the Rock creek aud u street in
| tercepter, and near its terminus the contents
| OF all the other sewage intercepters, thus de-
| livcring to the pumping station all the sewage
| OF the city and all the storm water from tie
| low district. The estimated cost OF this SYSTEM
as stated is S3,59S, 0OS and the annual expenses
| el63, $40.
OTHER PROJECTS.
The second project is identical with the first
| except that instead Of pumping the sewage
across the Eastern Branch it contemplates
pumping it westerly TO the river opposite GRAY
ely Point This plan is estimated at 60, 3i3, 500.
The three remaining plans contemplate the
discharge Of all sewage, except from the
central low districts. by gravity, the outfalis
being in the main emanuel above aud below
the mouth OF the Eastern Branch.
| The commission consider that by all means
! the first project Is the one which should be
| carried out. as best meeting all the points