Los Angeles daily herald., 1890-01-02

From this table it will be seen that:
First-The rain storms are not az heavy as IN
| the Eastern States.
SecoDd-.The maximum intensity of fall In
one hour does not vary greatly.
Thlrd-The late rains are not without prece
dent.
In substantiation OF what has just been said
the am ount of water accu ulating in he ktre &
! and doing damage during the storm of Il i
week. Is bound to be materially greater than 1t
Wss years ago. although the rain was not very
differsnt.
In view of these facts, and Of the frequently
expressed demands of the public, and also OF
the fact that during the recent storm many of
the streeis had streams of water spreading from
curb to curb, running from several inches to
one foot deep, and seriously interrupting bust
ness, the membe of this commission are con-
WINGED that the time has arrived when storm
drains for the lowest streets of the more ropu-
lous districts will prove an econo mical invest
ment. on account of the resulting damages DUR
ing almost every storm.
We think that the limited period during
which these heavy rains occur, and their com
parative infrequcncy, is no argument against
building the storm dra ms. In the large cities
of the East it has been found desirable, and
Sometimes even imperative, on account OF the
requirements OF business, to provide for the
underground removal of rain water for storms
occurring only once in ten years. In New
York, Philadelphia, Washington and S 80
other cities, it is endeavored to build the seq
ers large enough, Notwithstanding their greo 4
rainfalls. SO that the greatest known storm may
be safely provided for.
water over number OF parallel streets SO as to
divide ii, and thus make the stream in any one
2t them small enough to be unobjectionable.
This expedient has been followed in smaller
cities, and it should be followed wherever prac.
ticsble and economical. Difficulties are in the
way, however. when the quantity of water be-
comes great Where valleys are sharply defined
| the water is almost always concentrated on one
| street, and II this concentration once requires
an underground removal then spreading out
below is no longer possible For instance, the
| water from the Arroyo de los Reyes. draining
about ], 500 acres, is naturally concentrated on
Flower And Hope streets, which are situated at
put into underground drains on these streets it
| cannot again be brought to the surface to flow
once more in the cutters
The careful study of the topography, the
| p probs BILE quantity of storm water and estimates
OF cott will, in almost every case, determine
the time when it is no longer economical to
spread the water over several streets.
1t has been suggested to build as soon as
practicable such drains that will intercept th g
storm water along Its natural course at different
points, and deliver it into the river or ravines
them in the direction taken by the surface
water at pretent. We have examined the pro-
posed location IN general way and consider
the arrangement proper and economical one.
The following are the most i'm p0rtaHt Of these
| intercepting drains
one-Ths workman and Mozart street storm
drain, extending from Downey avenue along
Workman, Mozart and Lamar streets to the
river, and draining East Los Angeles.
Two-Arroyo de las Posas storm drain, ex-
tending from the upper extremity Of the Arroyo
de las rosas to the river and draining Brooklyn
| Heights.
Three Holleubeck Arroyo storm drain, ex-
erly through tt Hollenbe arroyo and drain.
ing Boyle Heiahts.
| Fourth-Elysian hills storm drain. extend
ing from College and Main streets along Col
| lege, Chavez and Mission streets to the river.
aud receiving the water from the northwest
corner OF the Second ward ,and the north end OF
| the Eighth ward.
Fifth-Second street storm drain extending
from the present southerly extremity of the
ZanJa Madre to the river, and receiving AL the
| water from the south end of the Eighth Ward,
and from the southeast corner of the Second
ward.
+. Sixth Flower and Ninth street storm drain,
extending from Flower, street easterly to the
river and receiving all the water from the
Seventh ward. the east end of the third, and a
part OF the Fourth ward, and through the
Arroyo de los Reyes. the principal portion Of
the Second ward. 1t also fntercepts the flow
from the Hooded portions Of the city in the
| upper ends OF the Fourth, Fifth and Sixth
wards.
seventh.-Pico street storm drain, extending
from Main street westerly to Pico Heights
ravine receiving the water from the west end
OF the Fourth ward and intercepting all water
Eighth-street storm drain, extending from,
Farrsgut street to the west city boundary, and
Tsceiying rec, the water from the west end of the
length and cost:
Estimated
Name OF Drain. Cost.
Mozart and Workman streets .. s. 1000
Elliott street 1000
Hollenbeck ravine. 10000
College ana Mission street. ...... $4,000
Second street ................... $4,000
Flower and Ninth street. ........ 292, ,OOO
Pico street .. .............. 63, SOC
seventh street.. ......... $4,000
Total ,.......,....... .S512 600
1t is not now neces ssary to build storm drains
the capacity which is known will be re-
quired for the time when the several districts
OF the city are densely built up. except where
1t Is difficult later to luild supplementary sew