Shared Solution

PID: GV1234
Designation: 863 8495 TIDAL 8
Stamping: NO 8 1941
Stability: Monument will probably hold position well
Setting: Massive structures (other than listed below)
Mark Condition: G
Description: The primary bench mark is a disk set flush in the top of a 1.96 m x 1.10 m x 0.40 m (6.4 ft x 3.6 ft x 1.3 ft) thick granite block on the north side of the lock toward the downstream end of the lock, 51.65 m (169.5 ft) SE of the center of the upstream lock door, 55.01 m (180.5 ft) SE of the flagpole, 23 m (76 ft)north of bench mark 863 8495 TIDAL 9, 16.73 m (54.9 ft) NW of bench mark 863 8495 City of Richmond.
Observed: 2021-04-16T16:53:00Z more obs 2014-06-24
Source: OPUS - page5 2008.25
Close-up View
REF_FRAME:   NAD_83(2011) EPOCH:   2010.0000 SOURCE:   NAVD88 (Computed using GEOID18) UNITS:  m  SET PROFILE   DETAILS
LAT: 37° 31' 31.42189" ±  0.015   m
LON: -77° 25' 14.85552" ±   0.008   m
ELL HT: -27.427 ±   0.021   m
X: 1103028.986 ±   0.003  m
Y: -4943093.750 ±   0.022  m
Z: 3863783.093 ±   0.016  m
ORTHO HT: 5.681 ±  0.055   m
UTM  18 SPC  4502(VA S)
NORTHING: 4155912.313m 1132834.858m
EASTING: 286081.822m 3595390.088m
CONVERGENCE: -1.47509444° 0.65499722°
POINT SCALE: 1.00016370 0.99994919
COMBINED FACTOR: 1.00016800 0.99995349
CONTRIBUTED BY
hunter
Geodynamics, LLC
Horizon View
The numerical values for this position solution have satisfied the quality control criteria of the National Geodetic Survey. The contributor has verified that the information submitted is accurate and complete.