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Details for Benchmark: RJ0617

N 46° 29.138 W 084° 18.086 (NAD 83)

Altitude: 584.62

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

Location:
In CHIPPEWA county, MI View Original Datasheet
Designation:
FERRY DOCK
Marker Type:
survey disk
Setting:
light structures
Stability:
Probably hold position/elevation well.

Reference Points

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Still there, disturbed some fishermen.

[Photos:]
photoFerry Dock Benchmark

Quick easy find but the Boarder Control was inspecting cars coming off the ferry, so I told them what I was doing and they had no problems with me looking for this one.

Found while visiting Sault Ste. Marie on a weekend trip.

[Photos:]
photoRJ0617

Documented History (by the NGS)

01/01/1981 by NOS (MONUMENTED)
DESCRIBED BY NATIONAL OCEAN SERVICE 1981 (RHH) THE STATION IS LOCATED ON THE EAST SIDE OF SAULT STE MARIE, MI. AT THE FERRY DOCK TO SUGAR ISLAND. TO REACH THE STATION FROM THE JUNCTION OF ASHMUN STREET AND PORTAGE AVE. IN SAULT STE MARIE GO SOUTHEAST ON PORTAGE AVE. FOR 5.5 KILOMETERS(3.4 MILES) TO THE ENTRANCE TO THE SUGAR ISLAND FERRY DOCK. DRIVE SOUTHWEST IN THE PARKING LOT TO THE BEGINNING OF THE ROAD TO THE PARK NEAR THE WATER AND THE VICINITY OF THE STATION. THE STATION IS A STANDARD NOS DISK STAMPED---FERRY DOCK 1981---, SET INTO A DRILL HOLE IN THE CONCRETE CAISSON SET FLUSH WITH THE GROUND. IT IS LOCATED 13.56 METERS (44.5 FT) SOUTH FROM THE INSIDE EDGE OF THE LOADING RAMP, 2.77 METERS (9.1 FT) NORTH FROM THE SOUTHERN EDGE OF THE SOUTHERN MOST CAISSON, 2.56 METER (8.4 FT) WEST FROM THE EASTERN EDGE OF THE SOUTHERN MOST CAISSON, AND 0.30 METER (1.0 FT) EAST FROM THE FACE OF THE SOUTHERN MOST MOORING POST. HEIGHT OF LIGHT SHOWN ABOVE THE MARK WAS 1.40 METERS.
01/01/1983 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 5.5 KM (3.4 MI) SE FROM SAULT STE MARIE. 5.5 KM (3.4 MI) SOUTHEAST ALONG EAST PORTAGE AVENUE AND RIVERSIDE DRIVE FROM THE JUNCTION OF ASHMUN STREET IN SAULT STE. MARIE, NEAR THE ENTRANCE TO THE ROTARY COMMUNITY PARK AND ABOUT 45.70 METERS (150.0 FT) SOUTHEAST OF THE SUGAR ISLAND FERRY LANDING, SET IN TOP OF THE CONCRETE CAISSON, 13.56 METERS (44.5 FT) SOUTHEAST OF THE SOUTHEAST EDGE OF A CONCRETE BOAT LANDING RAMP, 0.30 METERS (1.0 FT) EAST OF THE EAST FACE OF THE SOUTHERNMOST MOORING POST, 2.56 METERS (8.4 FT) WEST OF THE EAST EDGE OF THE SOUTHERNMOST CAISSON, 2.77 METERS (9.1 FT) NORTH OF THE SOUTH EDGE OF THE SOUTHERNMOST CAISSON. THE MARK IS ABOVE LEVEL WITH PARKING LOT AREA.
01/01/1986 by NOS (GOOD)
RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1986 (MWJ) THE STATION WAS RECOVERED AT THIS DATE. THE STATION WAS USED AS A CONTROLING STATION IN A TRAVERSE TO THE SOUTH TO NEEBISH ISLAND. HEIGHT OF LIGHT SHOWN WAS 1.50 METERS ABOVE THE MARK. RECOVERED BY R DECROIX.
01/01/1988 by USE (GOOD)
RECOVERY NOTE BY US ENGINEERS 1988 (RAB) THE STATION IS LOCATED ABOUT 3.9 KM (2.4 MI) EAST OF SAULT STE MARIE. 36.4 KM (22.6 MI) NORTHEAST OF RUDYARD 62.9 KM (39.1 MI) NORTH-NORTHWEST OF DETOUR VILLAGE IN SEC 9 T47N-R1E NEAR THE SOUTH MOORING DOCK OF THE SUGAR ISLAND FERRY. OWNERSHIP---SSSS TO REACH THE STATION FROM THE POST OFFICE IN SAULT STE MARIE MI, GO EAST FOR 0.2 KM (0.15 MI) ON RIDGE STREET TO ASHMUN STREET, TURN LEFT AND GO NORTH FOR 0.2 KM (0.1 MI) ON ASHMUN STREET TO PORTAGE AVENUE, TURN RIGHT AND GO EAST FOR 3.7 KM (2.3 MI) ON PORTAGE AVENUE TO THE SUGAR ISLAND FERRY DRIVE, TURN LEFT TO THE FAR SIDE OF THE PARKING AREA AND THE STATION. THE STATION IS A STANDARD NOS DISK THAT IS STAMPED---FERRY DOCK 1981---, SET INTO A ROUND CONCRETE MONUMENT FLUSH WITH GROUND, LOCATED 2.4 METERS (8 FT) EAST-NORTHEAST TO WATER AND 2.7 METERS (9 FT) SOUTH-SOUTHEAST TO WATER, NEAR THE SOUTHERN MOST MOORING POST. HEIGHT OF LIGHT SHOWN WAS 1.8 METERS ABOVE THE MARK.
06/03/1995 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1995 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in February 1997.
  • 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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