Michigan DOT Height Modernization Mark 63701 - U.S. Benchmarks on Waymarking.com

This mark is not included with benchmarks in Geocaching.com but does have an NGS data sheet. The data sheet is included below. Refer to the waymark coordinates as the scaled coordinates below are not accurate.

PID DI6332
STATE/COUNTY MI/OAKLAND
USGS QUAD NORTHVILLE (1980)


Current Survey Control

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NAD 83(1986) 42 26 23. (N) 083 24 23. (W) SCALED
NAVD 88 227.411 (meters) 746.10 (feet) ADJUSTED

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GEOID HEIGHT -33.95 (meters) GEOID09
DYNAMIC HT 227.347 (meters) 745.89 (feet) COMP
MODELED GRAV 980,334.7 (mgal) NAVD 88

VERT ORDER SECOND CLASS I


The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.

The orthometric height was determined by differential leveling and adjusted in July 2007.

No vertical observational check was made to the station.

The geoid height was determined by GEOID09.

The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).

The modeled gravity was interpolated from observed gravity values.


North East Units Estimated Accuracy
SPC MI S 104,830. 4,079,000. MT (+/- 180 meters Scaled)


Superseded Survey Control
No superseded survey control is available for this station.


Marker Information
U.S. NATIONAL GRID SPATIAL ADDRESS: 17TLH020014(NAD 83)



Marker Information
MARKER: DD = SURVEY DISK
SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
STAMPING: 63701 2006
MARK LOGO: MIDT
PROJECTION: FLUSH
MAGNETIC: N = NO MAGNETIC MATERIAL
STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
SATELLITE: SATELLITE OBSERVATIONS - June 01, 2006



History
Date Condition Report By
20060601 MONUMENTED MIDT


STATION DESCRIPTION
DESCRIBED BY MICHIGAN DEPARTMENT OF TRANSPORTATION 2006 (JDB) THE STATION IS LOCATED 1.9 MILES (3.06 KILOMETERS) SOUTHWEST OF FARMINGTON, 4.0 MILES (6.44 KILOMETERS) EAST-NORTHEAST OF NORTHVILLE, AND 5.7 MILES (9.17 KILOMETERS) NORTHEAST OF PLYMOUTH, LOCATED NORTH OF 8 MILE ROAD AND BETWEEN GOLDSMITH STREET AND METROVIEW ROAD. TO REACH THE STATION FROM THE JUNCTION OF 8 MILE ROAD WITH INTERSTATE HIGHWAY-96, GO EAST ON 8 MILE ROAD FOR 1.3 MILES (2.09 KILOMETERS) TO THE STATION ON THE LEFT. THE STATION IS A 4 INCH (10 CENTIMETER) HEIGHT MODERNIZATION STATION DISK STAMPED 63701 2006 SET IN A 16 INCH (41 CENTIMETER) DIAMETER CONCRETE POST FLUSH WITH THE GROUND. THE STATION IS 11 INCHES (28 CENTIMETERS) SOUTH OF A CARSONITE WITNESS POST, 3.0 METERS (9.9 FEET) NORTH OF THE BACK OF A CURB, 3.8 METERS (12.4 FEET) SOUTH OF THE SOUTH EDGE OF A WALK, 23.8 METERS (78.2 FEET) EAST-SOUTHEAST OF A POWER POLE, 167.6 METERS (550.0 FEET) WEST OF METROVIEW ROAD, 16.4 METERS (53.7 FEET) WEST OF THE CENTER OF THE DRIVE FOR WELL SPRING CHURCH ADDRESS--36350--

Condition: Mark found in good condition Designation: 63701 Benchmark Agency: other (not included below) Benchmark Agency (if other): Michigan Department of Transportation Monumentation type: Disk (unspecified type) County: Oakland USGS 7.5' Topographic Quadrangle Name (optional): Northville Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used NGS PID: DI6332 Monumentation type (if other): Not listed Special category (optional): Not listed Special Category (if other): Not listed Web address of this benchmark's datasheet (optional): Not listed Local database's URL (optional): Not listed

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