DH6552 - CADT '139 MOD 46.82' Survey Disk - Modoc County, CA
Posted by: Groundspeak Premium Member NW_history_buff
N 41° 54.193 W 121° 24.225
10T E 632399 N 4640262
An NGS survey mark located at a culvert along Highway 139.
Waymark Code: WMVJ0T
Location: California, United States
Date Posted: 04/23/2017
Published By:Groundspeak Premium Member Ernmark
Views: 1

I recovered this California Department of Transportation survey disk from 2004 in good condition. It is an aluminum disk monumented on top of the south end of a concrete headwall on the west side of Highway 139. The NGS coordinates and datasheet description are adequate for station recovery.

NGS datasheet info:

HISTORY - 20040929 MONUMENTED CADT

STATION DESCRIPTION

'DESCRIBED BY CALTRANS 2004 (JRL)
THE STATION IS LOCATED ADJACENT TO HIGHWAY 139 IN MODOC COUNTY AT
POSTMILE 46.82 ABOUT 4 KM NORTHWEST OF NEWELL, 8 KM SOUTHEAST OF
TULELAKE, AND 42 KM EAST SOUTHEAST OF DORRIS. TO REACH THE STATION
FROM THE INTERSECTION OF HIGHWAY 161 AND HIGHWAY 139 NORTH OF
TULELAKE GO SOUTHWEST ON HIGHWAY 139 6.44 KM TO EAST WEST ROAD IN
TULELAKE. CONTINUE SOUTHWEST ON HIGHWAY 139 6.42 KM TO A SIGNALIZED RAILROAD CROSSING. CONTINUE SOUTHWEST ON HIGHWAY 139 1.48 KM TO THE STATION ON THE RIGHT. THE STATION IS A SURVEY DISK EPOXIED TO TOP OF THE SOUTHERLY END OF THE WESTERLY HEADWALL 0.9 M NORTH OF AN ORANGE CARSONITE WITNESS POST, 1.2 M NORTHWEST OF A WHITE CARSONITE POST WITH AMBER REFLECTOR, 1.9 M SOUTHEAST OF A METAL GUARD POST, 8.3 M SOUTHWEST OF THE YELLOW STRIPE OF HIGHWAY 139, AND 11.9 M EAST OF POWER POLE A9775.

THIS STATION WAS OCCUPIED AS A PART OF THE CALTRANS NORTH REGION HEIGHT MODERNIZATION PROJECT.
Condition: Mark found in good condition

Designation: 139 MOD 46.82

Benchmark Agency: California Department of Transportation (CA)

Monumentation type: Disk (unspecified type)

County: Modoc County

USGS 7.5' Topographic Quadrangle Name (optional): Tulelake (1988)

Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used

NGS PID: DH6552

Local database's URL (optional): [Web Link]

Benchmark Agency (if other): Not listed

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

Visit Instructions:
  1. A closeup photo of the mark taken by you is required.
  2. A 'distant' photo including the mark in the view is highly recommended. Include the compass direction you faced when you took the picture.
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