Knowledge Base

Guidelines for Setting a National CORS Monument (2000)


Submitted by
Orland W. Murray
Process Action Team 20


This document serves as an illustrated guide for the construction of a monument for a National CORS (Continuously Operating Reference Station). The monument consists of a massive concrete pier, a polymer Delrin antenna mount, and a polymer C-Bar reinforcement assembly (Figure 1). The materials, dimensions, and procedures for the construction of the monument conform to the recommendations of Process Action Team 20 of the National Geodetic Survey (NGS).

Construction involves purchasing materials, scheduling services, and assembling components. Stock materials must be purchased for the antenna mount, the C-Bar reinforcement, and an aboveground form to support the semifluid concrete. Services must be scheduled to machine certain stock materials for the antenna mount, to check for underground pipes and cables at the site, to drill the large-diameter hole for the below ground section of the pier, to deliver the concrete, and to rent a vibrator to consolidate the semifluid concrete. Modified and stock materials must be assembled for the antenna mount, the C-Bar reinforcement, and the aboveground form.

[See attached pdf. file for more.]

Attached Files (1)
There are no comments for this article. Be the first to post a comment.
Security Code Security Code
Related Articles RSS Feed
INVAR Rod Encased in Concrete Pillar in Greenland (diagram)
Viewed 4080 times since Mon, Nov 24, 2008
Report on the Installation of the National CORS Prototype Monument (July 2000)
Viewed 2838 times since Thu, Nov 13, 2008
USGS INVAR Rod Encased in Concrete Pillar in Yellowstone, Wyoming (diagram)
Viewed 25605 times since Mon, Nov 24, 2008
Concrete Pillar Monument Overview
Viewed 23870 times since Wed, Apr 14, 2010
INVAR Rod Encased in Concrete Pillar at Red Butte, Utah (2 diagrams)
Viewed 4758 times since Mon, Nov 24, 2008
Generic / Simple Rebar-reinforced Concrete Pillar Design and Pipe Diagram (2 diagrams)
Viewed 9975 times since Fri, Dec 12, 2008
Concrete Pillar at Platteville, Colorado (diagram)
Viewed 4389 times since Wed, Nov 12, 2008

Last modified: Monday, 12-May-2014 00:18:29 UTC