wsucad Posted March 3, 2010 Posted March 3, 2010 We had a contractor a few years ago put our site plan on the State Plane Coordinate system and I am not sure they did it correctly. They are no longer in business and I want to check the drawing to make sure that it is correct and on the right coordinates. Does anyone know how I would go about doing that? Quote
ReMark Posted March 3, 2010 Posted March 3, 2010 There has to be a monument or marker with a coordinate on it. I'm not talking an iron pin or a stake in the ground with a tack in it. I'm talking a concrete marker with maybe the letters USGS called out on the drawing. Find one? Does it have a coordinate on it? If so, there has to be a reference to the monument in a field book or on a map (street line map?) somewhere on file in the Town Clerk's office or your town/city's engineering department or public works office. Quote
wsucad Posted March 4, 2010 Author Posted March 4, 2010 There are no monuments noted on the drawing. I was wondering how I could ID a point on the drawing and see where it falls on the state plane. Thank you for your help Dave Quote
alanjt Posted March 4, 2010 Posted March 4, 2010 The points would have to closely correspond to State Plane in your area. Even then, you are assuming they are rotated correctly. He would have needed 2 points to move and rotate everything to State Plane. Quote
Arizona Posted March 4, 2010 Posted March 4, 2010 Here in Jersey, the state set up a web site: https://njgin.state.nj.us/NJ_NJGINExplorer/IW.jsp See if Ohio has something similar. From that site you can download arial photos, then bring them into Map via Insert / Image (the Raster thing). The images (*.sid files) come into your drawings in state plane coords. It's very cool. Jersey finally did Something right... Quote
alanjt Posted March 4, 2010 Posted March 4, 2010 Here in Jersey, the state set up a web site:https://njgin.state.nj.us/NJ_NJGINExplorer/IW.jsp See if Ohio has something similar. From that site you can download arial photos, then bring them into Map via Insert / Image (the Raster thing). The images (*.sid files) come into your drawings in state plane coords. It's very cool. Jersey finally did Something right... Florida has Labins http://data.labins.org/2003/ Quote
Arizona Posted March 4, 2010 Posted March 4, 2010 I found this on Ohio: http://ogrip.oit.ohio.gov/ProjectsInitiatives/StatewideImagery.aspx seem to be a place for you to to start anyway. Quote
ReMark Posted March 4, 2010 Posted March 4, 2010 What makes you think the contractor did it incorrectly in the first place? Have you had subsequent work done by another surveyor calling into question the contractor's drawing? Quote
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