New-York tribune., 1870-08-03
A STRONG GUARD AT THE TONBs.
TIE WORK AT HE'LL GATE.

NEW ROUTE 10 THE OLD WORLD
The Board of Commissioners of Public Docks
yesterday made an excursion from Pier No. Is East
River mn East and Harlem Rivers to the bridge at the
upper end OF T7rdave., investigating the condition OF
the various piers and bukhCads They then returned 10
Hell Gate, and made minute inspection OF the opera
tions at Haets Point for the widening and deepening
of the ship channel There were present Commissioners
John T. Agnew, Richard NJ. Henry Wilson G. HUT,
Hugh Smith, william Wood, George B. Mcclellan Eli
chief Of The Department Of Docks, and Assist
ant Engineer John Mechan.
They arrived at HaiIets Point, just above Astoria,
about a:sO Here hey received by Mr.. c. C. Reit-
hcimer who has full charge Of the operations ne Is
blowing up of Hoyhead Mountain, HGiyheaa III, hafDor' Dor
Ensand ioL ioine iaG te!ILus d =, ttcd ,-c Lo % of
galleries and chambers, in which he exploded IN one
Blast q 900 pounds powder The whole cut was mace
and opened q once iCr the laying Of tie track. AZ
Haies Pointt the plan was conceived ana carried Ot ny
Cen John Newton, OF the United states Engineers; =,
Ithas been known from the first days of navigation m
these watoIs tt The p2ssage OF Hell Gate inyolVei
Tiss The rocks OF th, point he most dreaded, and
those also which lie on in the middle OF the channel, the
wollmown FRYING Pan shoals, WAYS Ieef ana foi rock
sspOng and over which the water rushes in manner
which lasLeS mo iosY. - s AloHn HsS 90 'uat VOta
route IIayTe Or Liverpool 100 miles shorter than Dy
would give an amount OF water through TIE ryer
snd down the BAY which II IS estimated wOiud secure
tle opening deep channel through the bar at inc
Weather pd tide and Guicng al fears for the port
tle southwark.
Uayiuc such an object IN view, work commenced
nc months 400 hy the building OF large c"herdam cN-
tondDg glr from te Point 80 feet into the river. 1hS
was the heaviest timber, with about TX
sec between inner a-d outer walls and this space
wa nlled with stone and gravel. Alter arranging
ppmp of about cUnCh stroke and throwing out all the
water the work Of excavation began. A large sh&it
feet in diameter vas then sunk in the soma tocL
so the depth of o. feet This has been long, tedious
WORK occupying the whole time up "a the LOST month II
Intended t. depth Of 80 tcet In tic channel De
low the lowest tile, and e. Is the cardinal principle OF
this plan that after the mine Is sprung the work
S. completed depth II TWO feet IS cXcayaied Tor
the deins hicil ~ ia hek after the explosion. MT
Rriibei'ner has hruu gt Om Cornwall numter OF MI
1,ers who are eged in driving heads from TINS
Iarcr shaft te water These VIII l.c te ~
Duper and viii have average length Oi l5O feet WIN
-npgs into the slaft 2Ofeet apart Tneso heads VIII
~ eon;ecea by three GALLERIES of the first second and
fIjro curves making % hOneyeOinb steam drli viii
le ised m running tEc ana IN fcW weeks all thc ~
,sn eup0yea viii De working Out II sight beneath The
Natere O4 lieE Gate. , -, -. -. -,
s,e tool are made aud s9rponed. TIE hosting appaT-
ans oossis OF sIuau eDgl, the boiler of "hich Iui-
UisheE stelIn FOR the puHps down N the sLs1
For removing the other Oistrucu9hs ana nopmefsed
,ooks there has introduced the eApOa st't' - oM
wrich will work drills - feet under w$tf 4Io oN 1t
Nh then be Inserted through tes 10 the rsinDTis e-
sssated and Ihe rocks IA be blown intO tie ais AZ Is
t siefed oae VI tie greatest Iinmphs OF engineering
stis -. as.,s g.,
Tia work Is going steadily aud The engln.ef ~
shaIss o. conhdeai Oi aitnate success Inc N04A - Iai
speatst thar srecItly completed AT san FiI'ScU
IRON the being tie hardest Spess thh D'"e
nDe tS-1 while the lOrfler WAS sJft sahdstohe'