+CosmicMiami Posted October 13, 2013 Share Posted October 13, 2013 Found this reference mark today, it isn't where it's supposed to be though. It was laying, still in the concrete, on the beach. Trying to figure out it's original location but the gubment website is down. Any ideas? Thanks. https://scontent-b-ord.xx.fbcdn.net/hphotos-prn2/1378103_10201265471733257_55190335_n.jpg Quote Link to comment
+Holtie22 Posted October 13, 2013 Share Posted October 13, 2013 Found this reference mark today, it isn't where it's supposed to be though. It was laying, still in the concrete, on the beach. Trying to figure out it's original location but the gubment website is down. Any ideas? Thanks. https://scontent-b-ord.xx.fbcdn.net/hphotos-prn2/1378103_10201265471733257_55190335_n.jpg Do you have coords for where you found it? You could try this site: Benchmark Viewer Quote Link to comment
mloser Posted October 13, 2013 Share Posted October 13, 2013 I am betting it is this one: HILD 2 RESET Quote Link to comment
+CosmicMiami Posted October 14, 2013 Author Share Posted October 14, 2013 I am betting it is this one: HILD 2 RESET Yep that's the one. Now the question is, can I "retrieve" it from its resting place on the beach. It is clearly of no use anymore as it is about a mile away from its original location, laying on its side in the sand. Quote Link to comment
mloser Posted October 14, 2013 Share Posted October 14, 2013 Get pictures of it as it sits in the sand, removed from its setting, and send them to Deb.Brown@noaa.gov to report that RM destroyed. Ask her if she cares if you keep the disk. The NGS is really not interested in getting the disks back. The stipulation of returning destroyed marks dates from the time when getting images of the disk was not as easy. Quote Link to comment
+CosmicMiami Posted October 14, 2013 Author Share Posted October 14, 2013 Get pictures of it as it sits in the sand, removed from its setting, and send them to Deb.Brown@noaa.gov to report that RM destroyed. Ask her if she cares if you keep the disk. The NGS is really not interested in getting the disks back. The stipulation of returning destroyed marks dates from the time when getting images of the disk was not as easy. I have several pics. It is a good bit away from its original location. Amazing how something of that weight would be moved that far. I'll get exact coords when I go back. It's still set in about 4' of concrete. My plan is to use a chisel and sledge to break off the top where the disk is located. Thanks for the help. Quote Link to comment
mloser Posted October 14, 2013 Share Posted October 14, 2013 Just bang at it with a long handled sledge. I have successfully removed disks from the monuments with an 8 lb sledge. If it is the type with squared top you can probably knock just the top off. If it is a totally cylindrical one you will have to hit it more to knock it apart. When I did it I think it took about 10 good hits to get the disk out. At first you don't think you are getting anywhere, but then a few cracks open up and concrete start flying. Speaking of bits flying, wear safety goggles. Quote Link to comment
+Holtie22 Posted October 14, 2013 Share Posted October 14, 2013 I have several pics. It is a good bit away from its original location. Amazing how something of that weight would be moved that far. I'll get exact coords when I go back. From the description, it seems that this Azimuth Mark for Hild 2 was originally located about 2 miles away from the station, about .5 mile north of the county line, and .2 mile north of Blowing Rocks. This would put it around N26 58.630, W080 04.930. It was reported destroyed back in 1964. The area around Hild 2, meanwhile, looks pretty pricey - probably nor a good place to go benchmark hunting, even though there is a good chance the station is still there. Quote Link to comment
+CosmicMiami Posted October 14, 2013 Author Share Posted October 14, 2013 Just bang at it with a long handled sledge. I have successfully removed disks from the monuments with an 8 lb sledge. If it is the type with squared top you can probably knock just the top off. If it is a totally cylindrical one you will have to hit it more to knock it apart. When I did it I think it took about 10 good hits to get the disk out. At first you don't think you are getting anywhere, but then a few cracks open up and concrete start flying. Speaking of bits flying, wear safety goggles. Is there a stem on these or are they just disks set into the concrete? Quote Link to comment
mloser Posted October 14, 2013 Share Posted October 14, 2013 There is a stem on it--about 3/4 inch around and 3 inches long. Quote Link to comment
+CosmicMiami Posted October 14, 2013 Author Share Posted October 14, 2013 There is a stem on it--about 3/4 inch around and 3 inches long. Thanks. Quote Link to comment
mloser Posted October 15, 2013 Share Posted October 15, 2013 I had a little trouble finding images of benchmark disks since the government sites are down, but here is one from Berntsen. They make disks (and other survey related items). The image at the top right is how the HILD disk would be imbedded in concrete, with two wings spread out to keep it from being pried out. Quote Link to comment
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