Survey Bolt  Central Park NYC

The bolt in this Central Park rock is believed to be one of the original survey bolts from when the city grid was first planned in 1811. Led by John Randel, surveyors had the task of marking each future street intersection aligned with the grid. They used marble monuments or iron bolts where there was exposed bedrock. The bolts bore a cross across the top.

Very few of these markers exist anymore. Most were removed as roads and intersections were built. However, Central Park was not a part of the original plan for the city, known as The Commissioners’ Plan of 1811, so street intersection points may have been marked according to the grid, and left to remain since no intersection was actually built here.
This bolt is known to be in the park, but the exact location is kept a secret for fear that it will be stolen or destroyed. After some intense searching of both the internet and park, you might be able to find it like I did.
Source: http://untappedcities.com/2013/05/21/untapped-secrets-of-central-park-not-according-to-plan/

This Content Originally Published to Land Surveyors United Network

Views: 393

Subject Keywords related to this post (add as many as you like): NY, NYC, bolt, central park, history, More…marker, survey

Say Something ⇣

Reply by Scott D. Warner, PLS on November 7, 2013 at 8:20pm

The importance of this monument is off the charts!

Reply by ePalmetto on November 6, 2013 at 7:32pm

Wow..how cool is that! 

Land Surveyors Celebrate the Past Present and Future of Professional Land Surveying in this Geosocial Network. Frictionless GeoCollaboration

Surveyor Hubs and Tags

Surveyor Community Hubs For World Regions

Surveying Hubs For US States

Social Support For Equipment

Surveying Photos by Tag

Surveying Videos by Tag

What You Missed

Thiago Paim posted photos
3 hours ago
Profile IconFederico Adolfo Bianchi and Carol Sang joined Land Surveyors United
7 hours ago
Adrian M Levy promoted Eric Colburn's blog post Surveying with Cameras: Enhancing Occupational Safety of Field Crews
8 hours ago
Amr Hussien promoted Scott D. Warner, PLS's group Land Surveyors University (Level One)
13 hours ago
Lalith Senanayake posted photos
14 hours ago
Claude Lindsay JOLICOEUR promoted Surveying Jobber's discussion Regional Surveyor Bans Activities of Free Land Surveyors
22 hours ago
Roy Daniel replied to Roy Daniel's discussion Changing angles ????
"What reference would you use to verify that?  Several surveyors say that the description on a…"
yesterday
Thiago Paim commented on Thiago Paim's photo
Land Survey Media Thumbnail

Dusty Road GNSS

"Brazil - RIO GRANDE DO SUL - HIGHWAY RS-137. Running earthwork. Using RTK system"
yesterday
Samuel Mena posted a status
"Please I need a tutorial of Magnet Tool for post processing"
yesterday
M.P.C.Senanayake updated their profile
yesterday
M.P.C.Senanayake promoted Scott D. Warner, PLS's group Sri Lanka Surveyors
yesterday
Profile IconAshley Pietersen, Benjamin Pitsker, Warren Blackwell and 2 more joined Land Surveyors United
Saturday
ePalmetto shared Wilfrido Bolivar's photo on Tweet This
Saturday
ePalmetto promoted Wilfrido Bolivar's photo
Saturday
ePalmetto shared abdeensheref's photo on Tweet This
Saturday
abdeensheref's photo was featured
Saturday
Surveying Jobber shared Eric Colburn's blog post on Google +1
Saturday
Surveying Jobber shared Eric Colburn's blog post on Tweet This
Saturday
Surveying Jobber commented on Eric Colburn's blog post Surveying with Cameras: Enhancing Occupational Safety of Field Crews
"Nice post Eric!"
Saturday
Surveying Jobber shared Eric Colburn's blog post on Tweet This
Saturday

Take This Page With You

follow us in feedly

Take this Page With You

QR Code for This Page: What is this?

Surveyor Goodies

© 2014   © Created by Land Surveyors United

Badges  |  Contact LSU  |  Privacy Policy  |  Terms of Service

Related Posts for Land Surveyors UnitedRelated Posts Plugin for Land Surveyors United Network ForumRelated Surveying Photos Land Surveyors United Live Support