Details for Benchmark: PE0280
N 44° 22.833 W 068° 13.367 (NAD 83)
Altitude: 202.64
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- Location:
- In HANCOCK county, ME View Original Datasheet
- Designation:
- U 144
- Marker Type:
- bench mark disk
- Setting:
- in rock outcrop
- Stability:
- Most reliable and expected to hold position/elevation well.
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Documented History (by the NGS)
1/1/1962 by CGS (MONUMENTED) |
DESCRIBED BY COAST AND GEODETIC SURVEY 1962
1.2 MI W FROM BAR HARBOR. 0.35 MILE WEST ON COTTAGE STREET FROM THE POST OFFICE IN BAR HARBOR, THENCE 0.8 MILE SOUTH AND WEST ON STATE HIGHWAY 233. 45 FEET SOUTH OF THE CENTER LINE OF HIGHWAY 233, 21 FEET WEST OF THE CENTER LINE OF CROMWELL HARBOR ROAD, 2 FEET EAST OF THE NORTHEAST CORNER OF A FENCE AROUND A YARD. SET IN A DRILL HOLE IN THE TOP OF A ROCK OUTCROP AT THE NORTHEAST CORNER OF YARD AND 1 FOOT ABOVE THE LEVEL OF THE ROAD. |
1/1/1986 by USPSQD (GOOD) |
RECOVERY NOTE BY US POWER SQUADRON 1986 (ELG)
RECOVERED IN GOOD CONDITION. |
1/1/1989 by USPSQD (GOOD) |
RECOVERY NOTE BY US POWER SQUADRON 1989 (ELG)
RECOVERED IN GOOD CONDITION. |
10/19/2000 by NGS (GOOD) |
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (GAS)
0.6 KM (0.35 MI) WESTERLY ALONG COTTAGE STREET FROM THE POST OFFICE IN BAR HARBOR, THENCE 0.2 KM (0.10 MI) SOUTHERLY ALONG STATE HIGHWAY 3, THENCE 1.2 KM (0.75 MI) WESTERLY ALONG STATE HIGHWAY 233, NEAR THE CENTER OF A 2 BY 2-FOOT EXPOSED ROCK OUTCROP, 14.8 M (48.6 FT) SOUTH OF THE HIGHWAY CENTERLINE, 5.9 M (19.4 FT) WEST OF THE CENTER OF CROMWELL HARBOR ROAD, 0.8 M (2.6 FT) ABOVE THE LEVEL OF THE HIGHWAY, AND 0.3 M (1.0 FT) EAST OF A FENCE. NOTE--THE MARK IS ON THE HIGHWAY RIGHT-OF-WAY. |
Control Text
- The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
- The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
- 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.