Evening star. [volume] (Washington, D.C.) 1854-1972, 1892-02-27
rur POST OFFICE SITE.
r por,,~. Completed and Rock Found 1t
Inc Every Point Tested.

COMPLETED and Rock Found ut
rx.ry Point Tested.
| -;,a. On the site Of the new CITY post
49, 90 heen completed for the present. and
IN ~. re,nrn of Architect Edbrooke from
ch;o..o there will be no more probines into
.h.aa,,b The results Of this work have been
.,rn,i.e to all and extremely gratifying TO
.varrbody connected with the construction Of
tna building. Rock has been encountered un-
der the surface at depths varying from twenty
five feet eight inches to thirty feet half
an inch. The average depth OF all the eight
borings that have been made is thirty-one feet
ten inches.
The first four holes were bored in the corners
and the next series Of four in the middle Of the
sides somewhat further from the edges than
those on the corners, SO that there were great
variety OF planes developed. The general dip
y unmistakabiy toward the north, contrary to
All expectations. The rule seems to be re-
Eersed, for In the average geology the dip is
toward stream, and the presence of the Poto-
mac would surely be reason to look for a
slope In the rock bed to the south. Instead Of
this the southern edge of the bed is about eight
feet nearer the surface than the northern edge.
The bottom Of the bed is at an unknown
depth, as no behring's have yet been made into
the rock to determine its thickness. In one OF
the pits the drill was sent down seven inches
into the rock, and in another place the Work
was stopped about five inches after rock was
encountered. 1t may be that when Mr.. Ed
brooke has examined the results he will order
that two or three borings be continued 80 as W
determine as far as possible the thickness y.
the stratum of rock. II it should be no mort
than eight inches thick it will be amply sufhcenl
for all purposes, as the main desloeratu
a firm bottom for the piling that Will undoIo
eddy be driven to support the foundation. ~, ~ AZ
not thought that it will be Mt all practicapie W
excavate the lot all the way to the rock as 'HSte
would be unusual difficulties in the way. sI
cost of excavation, too, Is sucn ina. wy eli
expense of digging out the lot wouio nus i"''
far short of the cost OF piiins. u,o,, the
There are materials in places througnou' .n
snuare before the rock is encountered, through
which it will be extremely difhcult 10 oLMe Wv.
niles Some of the gravel Is so compact uas
the drill could scarcely be forced uo"n' Ill
there is one pocket of sand that the poieI sn |
tepacions that he was half an hour penet
eleven inches. This he says will surely rssisIa
nile and he thinks that an ample Iounu"on
will he found before the rock Is toucneu. ~!
his individual opinion that there Is suncien'
bottom in the lot to support teh ''oi' '1'1N
ing without any pillnG L.. sadie -;
The rain of the present week mas sauy in
5000 with Contractor Gleason's plan OF
ge,tinp his excavation completed next week.
Se has been working hard to turn the lot over
10 the government in bali the time tnat ne
agreed TO occupy. His contract expires April
1. and he has estimated tnat WITHOUT any IN
reference from Jupiter Pluvius he would have
con,nIeted every stroke of work on the square
by nayt "wednesday. or in just half the time
snecified. This would have been q wonderful
reecord for this time of the year, but even 1t
ia there will be time saved, and it would appear
a. though the lot would be ready for the
foundation work long before the architect has
20 fpr nnfr