DESCRIPTIONS OF BENCH MARKS
 

BOROUGH OF RICHMOND
 

NEW  JERSEY.

B. M. 1.—State Geological Survey Bench Mark, Perth Amboy, N. J. The center
of a granite monument with a rounded top 8 inches in diameter, located in a triangular
grass plot in the public park at the intersection of High Street and Market Street.
The monument, the elevation of which was established by the United States Coast
and Geodetic Survey, is on the center line of High Street, 97.75 feet southwesterly
from its intersection with the center line of Market Street, and the top is 3 inches
above the ground.

Elevation, 60.946 feet,

B. M. 2.—Perth Amboy, N. J. The intersection of a cross { + ) cut in the top of
a spike with a head 1% inches square, in the top of the backing log on the north
side of the dock at the foot of Fayette Street, The spike is near the northeast cor¬
ner of the dock and 19 feet north of the south line of Fayette Street.

Elevation, 6.534 feet.

B. M. 3.—Tottenville. The intersection of a cross ( + ) cut in the top of a spike
with a head J^-inch square in the top of the fourth pile from the northwest corner,
on the north side of the dock at the foot of Amboy Road. The pile containing the
bench mark is on line with the north line of Amboy Road.

Elevation. 7.010 feet.

B. M. 4.—Tottenville. The top of a railroad spike driven vertically in the blazed
root of a tree stump on the south side of Amboy Road about 95 feet east of the
Arthur Kill. The bench mark is on the north side of the tree, which is opposite
a sewer manhole at the foot of Amboy Road.

Elevation, 13.488 feet.

B. M. 5.—Tottenville. The bottom of a square cut in the top of the east curb on
the northeast corner of Hopping Avenue and Amboy Road. The square is at the
northwest corner of a curved section of the curb and 3 inches south of the north
line of the concrete sidewalk on Amboy Road.    (Note 10, p. 90.)

Elevation, 39.861 feet.

B. M, 6.—Tottenville. The bottom of a square cut in the top of the northwest
corner of the bluestone sill of bay window at the west side of the two-story and
attic frame house of Mr. Barnes, on the north side of Amboy Road, about 150 feet
east of Hopping Avenue. The bench mark is 1 foot above the ground, and an arrow
head on the west side of the sill points to the spot.    (Note 10. p. 90.)

Elevation, 48.762 feet.