QE0644 - OSHD 'W 156' BM - Corvallis, OR
Posted by: Groundspeak Premium Member NW_history_buff
N 44° 33.406 W 123° 15.874
10T E 478988 N 4933748
An NGS benchmark (one of two) located at Marys River Bridge.
Waymark Code: WMY5CN
Location: Oregon, United States
Date Posted: 04/24/2018
Published By:Groundspeak Premium Member Ernmark
Views: 0

I recovered this Oregon State Highway Department benchmark from 1941 in good condition. It is a brass disk monumented on top of a concrete sidewalk and located at the NE corner of Marys River Bridge which spans Marys River. My posted coordinates should place you very close to this mark.

NGS datasheet info:

01/01/1941 by ORHD (MONUMENTED)

01/01/1961 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1961 IN CORVALLIS. IN THE SOUTH PART OF CORVALLIS, ON U.S. HIGHWAY 99 W, AT THE NORTHEAST CORNER OF THE MAIN SPAN OF THE HIGHWAY BRIDGE OVER MARY RIVER, 30 FEET SOUTH OF THE EXTREME NORTHEAST CORNER OF THE BRIDGE, AT THE BASE OF THE RAIL, AND IN TOP OF THE EAST EDGE OF THE CONCRETE WALK.

01/01/1985 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1985 RECOVERED IN GOOD CONDITION.

01/01/1987 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION, A NEW DESCRIPTION FOLLOWS. 1.2 KM (0.75 MI) SOUTH ALONG STATE HIGHWAY 99W FROM ITS JUNCTION WITH U.S. HIGHWAY 20 IN CORVALLIS, IN THE NORTH END OF THE EAST WALKWAY OF THE NORTHBOUND LANES BRIDGE SPANNING THE MARYS RIVER, 11.6 M (38.1 FT) SOUTH OF THE NORTH END OF THE WALKWAY, 6.0 M (19.7 FT) EAST OF THE CENTERLINE OF THE NORTHBOUND LANES OF THE HIGHWAY, AND 0.1 M (0.3 FT) WEST OF THE EAST GUARDRAIL. NOTE--NOT LEVELED THIS SURVEY, AND THE DISK IS STAMPED AS ABOVE. THE MARK IS 0.2 M ABOVE THE HIGHWAY.
Condition: Mark found in good condition

Designation: W 156

Benchmark Agency: State Highway Department (OR)

Monumentation type: BENCH MARK (or B.M.) Disk

County: Benton County

USGS 7.5' Topographic Quadrangle Name (optional): Corvallis (1986)

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

Web address of this benchmark's datasheet (optional): [Web Link]

NGS PID: QE0642

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

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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