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Details for Benchmark: LX2382

N 41° 26.741 W 073° 15.033 (NAD 83)

Altitude: 220.94

Coordinates may not be exact. Altitude is ADJUSTED and location is ADJUSTED. (more info)

Location:
In NEW HAVEN county, CT View Original Datasheet
Designation:
C 2493
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Documented History (by the NGS)

01/01/1983 by CTGS (MONUMENTED)
DESCRIBED BY CONNECTICUT GEODETIC SURVEY 1983 (AJK) THE STATION IS LOCATED ABOUT 8.9 KM (5.5 MI) NORTH OF BOTSFORD, 8.5 KM (5.25 MI) WEST NORTHWEST OF QUAKER FARMS AND 6.0 KM (3.75 MI) NORTHEAST OF NEWTOWN. OWNERSHIP--STATE OF CONNECTICUT, DEPARTMENT OF TRANSPORTATION, MR EDWARD J SULLIVAN, CHIEF OF BOUNDARY AND GEODETIC SURVEY, 24 WOLCOTT HILL ROAD, WETHERSFIELD CT 06109, PHONE 203-566-4638. TO REACH THE STATION FROM SOUTHBURY AT THE INTERSECTION OF INTERSTATE ROUTE 84 (YANKEE EXPRESSWAY) AND CONNECTICUT ROUTE 172 (SOUTH BRITAIN ROAD) PROCEED WESTERLY ALONG INTERSTATE ROUTE 84 FOR 2.1 KM (1.29 MI) TO THE STATION ON THE RIGHT, ON TOP OF A LONG SLOPE. THE STATION IS A STANDARD CDOT DISK STAMPED---C 2493---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE PROJECTING 6 CM ABOVE THE GROUND. IT IS LOCATED 26.09 METERS (85.6 FT) NORTHEAST FROM POWER POLE 1P74, 15.85 METERS (52.0 FT) NORTH FROM THE EXTENDED CENTERLINE OF A BITUMINOUS DRIVE TO A ONE STORY FRAME HOUSE, 6.19 METERS (20.3 FT) EAST FROM A WIRE FENCE AND 9.14 METERS (30.0 FT) EAST-NORTHEAST FROM A 90 CM OAK TREE. REFERENCE MARK NUMBER 1 IS A DRILL HOLE IN A METAL FENCE POST THAT HAS REINFORCING BARS 1.5 METERS ABOVE THE GROUND. IT IS LOCATED 18.75 METERS (61.5 FT) SOUTH-SOUTHEAST FROM A 90 CM OAK TREE, 6.40 METERS (21.0 FT) SOUTH FROM THE EXTENDED CENTERLINE OF A BITUMINOUS DRIVE TO A ONE STORY FRAME HOUSE, 17.83 METERS (58.5 FT) SOUTHEAST FROM POWER POLE 1P74 AND 10.06 METERS (33.0 FT) EAST FROM THE CENTERLINE OF A BITUMINOUS DRIVE. MARK IS ABOVE STATION 0.4 METER. REFERENCE MARK NUMBER 2 IS A STANDARD CDOT DISK STAMPED---NO STAMPING---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE FLUSH WITH GROUND. IT IS LOCATED 17.31 METERS (56.8 FT) NORTHEAST FROM POWER POLE 1P74, 8.69 METERS (28.5 FT) NORTH FROM THE EXTENDED CENTERLINE OF A BITUMINOUS DRIVE TO A ONE STORY FRAME HOUSE, 2.56 METERS (8.4 FT) SOUTHEAST FROM A 90 CM OAK TREE, 6.55 METERS (21.5 FT) EAST FROM THE CENTERLINE OF A BITUMINOUS DRIVE AND 0.73 METER (2.4 FT) WEST FROM A WIRE FENCE. MARK IS ABOVE STATION 0.2 METER. REFERENCE MARK NUMBER 3 IS A STANDARD USC+GS DISK STAMPED---REFERENCE NO 3---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE RECESSED 3 CM BELOW THE GROUND. IT IS LOCATED 26.30 METERS (86.3 FT) NORTHEAST FROM POWER POLE 1P74, 8.53 METERS (28.0 FT) NORTH-NORTHEAST FROM A 90 CM OAK TREE, 7.92 METERS (26.0 FT) EAST FROM THE CENTERLINE OF A BITUMINOUS DRIVE, 19.51 METERS (64.0 FT) NORTH FROM THE EXTENDED CENTERLINE OF A BITUMINOUS DRIVE TO A ONE STORY FRAME HOUSE AND 1.0 METER (3.3 FT) EAST FROM A WIRE FENCE. MARK IS ABOVE STATION 0.1 METER. AZIMUTH MARK NUMBER 1 IS A STANDARD CDOT DISK STAMPED---C 2496---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE RECESSED 3 CM BELOW THE GROUND. IT IS LOCATED 12.19 METERS (40.0 FT) NORTH FROM THE CENTERLINE OF RIVER ROAD OVERPASS, 2.59 METERS (8.5 FT) WEST FROM A BARRIER RAIL AND 4.08 METERS (13.4 FT) NORTH FROM THE CORNER OF A CONCRETE BRIDGE ABUTMENT. TO REACH AZIMUTH MARK FROM THE STATION PROCEED WESTERLY ALONG INTERSTATE ROUTE 84 FOR 0.4 KM (0.23 MI) TO THE STATION ON THE RIGHT. AZIMUTH MARK NUMBER 2 IS A STANDARD CDOT DISK STAMPED---C 1089---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE FLUSH WITH GROUND. IT IS LOCATED 19.05 METERS (62.5 FT) NORTWEST FROM THE CENTERLINE OF ICHABUT ROAD OVERPASS, 11.89 METERS (39.0 FT) EAST FROM POWER POLE 610, 4.24 METERS (13.9 FT) WEST-SOUTHWEST FROM A 30 CM TWIN CATALPA TREE AN 8.08 METERS (26.5 FT) NORTH FROM THE CENTERLINE OF A CATCH BASIN. TO REACH AZIMUTH MARK FROM SOUTHBURY AT THE INTERSECTION OF INTERSTATE ROUTE 84 (YANKEE EXPRESSWAY) AND CONNECTICUT ROUTE 172 (SOUTH BRITAIN ROAD) PROCEED WESTERLY ALONG INTERSTATE ROUTE 84 FOR 1.5 KM (0.94 MI) TO THE STATION ON THE RIGHT. AZIMUTH MARK NUMBER 3 IS A STANDARD CDOT DISK STAMPED---C 2487---, SET INTO THE TOP OF A SQUARE CONCRETE MONUMENT 15 CM ON A SIDE RECESSED 3 CM BELOW THE GROUND. IT IS LOCATED 29.99 METERS (98.4 FT) NORTH FROM THE END POST OF A WIRE FENCE, 18.59 METERS (61.0 FT) NORTHEAST FROM A 30 CM HICKORY TREE, 13.87 METERS (45.5 FT) WEST FROM POWER POLE 584 AND 6.10 METERS (20.0 FT) WEST FROM THE CENTERLINE OF FISH ROCK ROAD. TO REACH AZIMUTH MARK FROM THE INTERSECTION OF INTERSTATE ROUTE 84 (YANKEE EXPRESSWAY) AND THE SOUTHBURY NEWTOWN TOWN LINE, PROCEED EASTERLY ALONG INTERTSTATE ROUTE 84 FOR 0.4 KM (0.24 MI) TO AN EXIT RAMP RIGHT (EXIT 13). BEAR RIGHT AND PROCEED EASTERLY ALONG EXIT RAMP FOR 0.4 KM (0.23 MI) TO A T ROAD. TAKE RIGHT AND PROCEED SOUTHERLY ALONG FISH ROCK ROAD FOR 0.1 KM (0.04 MI) TO THE STATION ON THE RIGHT. HEIGHT OF LIGHT SHOWN ABOVE THE MARK WAS 1.5 METERS. DESCRIBED BY S MCCUSKER.
01/01/1985 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1985 8.8 KM (5.45 MI) SW FROM SOUTHBURY. 8.8 KM (5.45 MI) SOUTHWEST ALONG INTERSTATE 84 FROM THE BUCKS HILL ROAD OVERPASS IN SOUTHBURY TO THE MARK ON THE RIGHT, 0.6 KM (0.35 MI) SOUTH ALONG INTERSTATE 84 FROM THE ICHABUT ROAD OVERPASS, ON TOP OF A LONG SLOPE, 29.14 METERS (95.6 FT) NORTHWEST OF THE EDGE OF THE HIGHWAY, 26.09 METERS (85.6 FT) NORTHEAST OF UTILITY POLE 1P74 WITH TWO GUY WIRES, 9.14 METERS (30.0 FT) EAST OF A 91-CM (36-INCH) OAK TREE, 6.31 METERS (20.7 FT) SOUTHEAST OF A CHAIN LINK FENCE. THE MARK IS 0.33 METERS SE FROM A WITNESS POST THE MARK IS 6.10 M ABOVE HIGHWAY.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1998.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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