Brazos County Benchmark System Benchmark = BZ 138

Location: Britten Rd

BM Owner: Brazos County

Horz. Datum NAD 83 (1993) Vert. Datum NAVD 88

Latitude Longitude

Position 30 41 43.34684(N) 96 27 54.55243(W) Adjusted GPS

Orthometric Height (M) 100.933 unchecked GPS

Ellip_Height (M) 74.72 GPS

PROJECTION COORDINATES

NORTH EAST SCALE CONVERG.

SPC TX C 3,120,479.56 1,070,483.56 0.99989592 + 01 59 32.4

UTM 14 3,398,585.31 742,795.86 1.00032726 + 01 17 40.6

 

All adjustments hereafter, Original Horizontal Coordinates: NAD 83 Geographic

Universal Transverse Mercator Projection,

NAD 83, NAVD 88, Meters

UTM Zone 14

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD88, Meters

3398585.30759 N

742795.88298 E

Elevation 100.948

Convergence 01 17 40.58167

Scale Factor 1.000327262

Combined Factor 1.000311415

State Plane Coordinates. NAD 83, NAVD 88

Texas Central Zone (4203) Meters

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD 88, Meter

3120479.55666 N

1070483.58269 E

Elevation 100.948

Convergence 01 59 32.42599

Scale Factor 0.999895920

Combined Factor 0.999880079

NAD83 and NAVD88, GEOID96 model, GRS80 ellisoid

Input Vertical Coordinates: Ellipsoid Height, GRS 80, Meters

Output Vertical Coordinates: Orthometric Height, NAVD 88, Meters

NAD83 (1993) NAVD88

30 41 43.34671 N

96 27 54.55141W

Elevation (m) 100.948

NAD27, NGVD29, Mean Sea Level, Clark 1866 Ellipsoid

Input Vertical Coordinates: Ellipsoid Height GRS 80, Meters

Output Vertical Coordinates: MLS, NGVD 29, U.S. Survey Feet

30 41 42.63659 N

96 27 53.67525 W

Elevation 331.08

Datum Shift (m) Delta Lat. = 21.869

Delta Lon. = 23.317