IOBBS.] 
HARLEM RIVER FRONT AND SECTIONS. 
41 
Summary of records of borings made in New York and vicinity — Continued. 
1. BORINGS BENEATH CHANNELS ON WATER FRONT— Continued. 
Serial 
num- 
ber. 
Locatior. 
Depth of bori 
lg to rock. 
As given. 
Referred 
to U. S. 
datum, 
Sandy 
Hook. 
Kind of rock, if known 
HUDSON RIVER SECTIONS — cont'd. 
Pennsylvania, New York and Long [stand 
Ba ilroad t unn el— Continued. 
254 
200 feet west of Weehawken bulk- 
head line(W-12). 
Weehawken pierhead line — 
168. 3 
129 
Rock or bowlder. 
255 
300 feet east of line ( W-10 ) . . . . 
- 61.2 
-237 
Do. 
256 
700 feet east of line (W-9) 
- 42.6 
-255 
Do. 
257 
1,650 feet east of line (W-7) . . . 
- 30 
-268 
Do. 
258 
2,000 feet east of line ( W-6) . . . 
- 24 
-274 
Do. 
259 
2,300 feet east of line ( W-5) . . 
- 28.9 
-269 
Do. 
260 
2,600 feet east of line ( W-4) . . . 
- 43 
255 
Do. 
261 
2,900 feet east of line (W-3) . . - 
-115 
-183 
Do. 
262 
3,100 feet east of line (W-2) . . . 
On line of proposed bridge at 59th streets 
New York side — 
148.5 
-149 
Do 
263 
264 
460 feet east of bulkhead line.. 
— 28 
-123 
Rock or bowlder. 
450 feet west of bulkhead line 
Do. 
New Jersey side — 
265 
\ 266 
880 feet west of bulkhead line. . 
- 58 
-115 
Do. 
100 feet west of bulkhead line. 
Do. 
267 
268 
1 269 
200 feet east of bulkhead line. J 
-123 
-190 
-251 
Do. 
700 feet east of bulkhead line 
Do. 
1,200 feet east of bulkhead line. 
Do. 
1270 
2,000 feet east of bulkhead line. 
HARLEM RIVER FRONT AND SECTIONS. 
-300 
Do. 
Spuyten Duyvil Bridge. & 
271 
272 
273 
First pier on Manhattan side 
-110 
-115 
- 90 
Rock not known. 
Center pier 
Do. 
Pier at north end of swing span. . 
Do. 
Dock line. <• 
274" 
125th street 
-151 
-153 
275 
Intersection of 155th street and 
Seventh avenue. 
— 29 
- 31 
Rock or bowlder. 
aMacdonald, Charles, Engineering News, vol. 33, 1895, p. 159 (wash borings). 
b Engineering News, vol. 43, 1900, p. 397. 
cNew York department of docks. No. 276 taken from series of 33, average of three adjacent 
orings; 277 from test piling. 
