Shared Solution

PID: BBDL40
Designation: 863 8445 B
Stamping: 8445 B 2007
Stability: Most reliable; expected to hold position well
Setting: Object surrounded by mass of concrete
Mark Condition: G
Description: The bench mark is a disk set flush in the top of the SW corner of the concrete boat ramp next to the westerly most 8 in diameter wood piling on the south side of the concrete ramp at the Colonial Harbor Marina , 83.99 m (275.6ft) WSW of bench mark 863 8445 A, 77.10 m (253.0ft) east of bench mark 863 8445 C, 52.32m (171.7ft) east of the NE corner of the 25.0 m x 10.5 m (82.0ftx34.4ft) metal shop building which is open on the west side, 6.21m (20.4ft) S of the NW corner of the concrete boat ramp
Observed: 2021-02-04T13:35:00Z more obs 2021-02-19
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° 24' 5.16197" ±  0.002   m
LON: -76° 54' 50.72663" ±   0.005   m
ELL HT: -33.991 ±   0.012   m
X: 1148593.663 ±   0.003  m
Y: -4941291.737 ±   0.011  m
Z: 3852858.864 ±   0.006  m
ORTHO HT: 0.631 ±  0.054   m
UTM  18 SPC  4502(VA S)
NORTHING: 4141125.466m 1119711.725m
EASTING: 330582.900m 3640404.610m
CONVERGENCE: -1.16288611° 0.96252778°
POINT SCALE: 0.99995356 0.99994558
COMBINED FACTOR: 0.99995889 0.99995091
CONTRIBUTED BY
luke.downey
NOAA, National Geodetic Survey
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.