Mass Highway Geodetic Data Sheet

Station: TECH 1934 NGS PID # MY2965

Town: CAMBRIDGE Quad: BOSTON SOUTH

NAD83 Northing Easting NAD27 Northing Easting

(meters) 901161.860 233449.338 (survey ft) 495893.68 709608.81

Data source 83 SPC Zone Data source 27 Datum adjusted to Order

NGS-ADJ 2001 NGS-ADJ NAD27 2nd

Elevation Vertical Datum Order Stamping: TECH 1934

Sketch available? NO

Recovery date: 12/75

Marked By: USC&GS TRIANGULATION DISK SET IN AN 8-INCH CONCRETE DOME CAST ON AND LAGGED

TO THE ROOF.
Description: ATOP A BUILDING ON THE PROPERTY OF THE MASS INSTITUTE OF TECHNOLOGY,

OCCUPIED BY THE GUGGENHEIM AERONAUTICAL LAB. ON THE EASTERN SIDE OF MASS

AVE JUST SOUTH OF VASSAR ST AND 0.25 MI NORTH OF THE CHARLES RIVER.

IT IS NEAR THE NW CORNER OF THE ROOF AND IS 11.1 FT FROM THE INSIDE EDGE OF THE

CAPSTONE ON THE WESTERLY WALL; 72.6 FT FROM THE INSIDE EDGE OF THE CAPSTONE

ON THE NORTH WALL; 55.3 FT FROM THE NW CORNER; 57.6 FT FROM THE SE CORNER OF

THE PENTHOUSE.

Reference TWO USC&GS RM DISKS SET FLUSH IN THE 57.798 FT 231-50-12 24.954 FT
Marks: CAPSTONE OF THE COPING, STAMPED "TECH 1934 345-27-28

NO 1" AND "TECH 1934 NO 2".
Azimuth Data:

FEDERAL 1933

Geodetic: 276-09-31.4 3060.5 M

Grid

Azimuth:
9/25/01 To convert meters to U.S. survey feet Page 22 of 23

multiply by 3.280833333333
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