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Bench Mark Sheet for 9052058, Rochester NY

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


TO REACH THE NOS GAUGING STATION, IN ROCHESTER, MONROE COUNTY, NEW YORK, FROM
THE INTERSECTION OF MANN RD AND BEACH AVE, PROCEED NE ON BEACH AVE FOR APPROX
0.56 KM (0.35 MILE), THE NOAA/NOS WATER LEVEL GAUGING STATION IS A STONE FACED
CONCRETE BUILDING LOCATED ON THE LAKE SIDE OF AVENUE  ON THE NORTH SIDE OF BEACH
AVE.


                    G R E A T  L A K E S   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  SUB
                         DESIGNATION:          905 2058 SUB

MONUMENTATION:           Metal Rod                             VM#:        12748
AGENCY:                  National Geodetic Survey              IDB PID#:  OF1082
SETTING CLASSIFICATION:  Galvanized steel rod in sleeve        OPUS PID:        
LATITUDE:   43° 16.1' N (  43.26875)          LONGITUDE:  77° 37.6' W ( -77.62617)


The bench mark is a galvanized steel rod 19.1 m (62.7 ft) SW of the centerline
of Beach Avenue, 13.4 m (44.0 ft) W of W corner of a 6-foot square concrete
sewer foundation, 8.5 m (27.9 ft) SW of the SE corner of a 6-foot high cyclone
fence, 6.10 cm above the ground surface, being highest point on top of a
stainless steel plug on top of a 3/8-inch diameter galvanized steel pipe 6.1 m
(20.0 ft) long, the pipe is encased in a 1-inch diameter steel pipe and the mark
is protected by a 6-inch diameter concrete pipe with extended PVC sleve and
aluminum access cover stamped sub, the datum point is 0.3 feet (9.1 cm) below
ground level.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  2058 G 1984
                         DESIGNATION:          905 2058 G

MONUMENTATION:           Bench Mark disk                       VM#:        12749
AGENCY:                  National Ocean Survey                 IDB PID#:  AC6287
SETTING CLASSIFICATION:  6X7 Foot Concrete Pad                 OPUS PID:        
LATITUDE:   43° 16.1' N (  43.26819)          LONGITUDE:  77° 37.5' W ( -77.62558)


The bench mark is a disk 22.4 m (73.5 ft) E of power pole no. 12b, 21.5 m (70.5
ft) SW of lamp post no. 4849, 6.8 m (22.3 ft) NNW of the center of a Rochester
Gas and Electric manhole cover, 5.0 m (16.4 ft) W of the center of manhole cover
closest to Beach Ave, 1.9 m (6.2 ft) SE of telephone pole with 3 floodlamps,
being the highest point of a bronze disk set in the NE corner of a 1.83 m (6.00
ft) x 2.13 m (6.99 ft) concrete pad near a golf tee.



                         BENCH MARK STAMPING:  2058 J 1990
                         DESIGNATION:          905 2058 J

MONUMENTATION:           Bench Mark disk                       VM#:        12750
AGENCY:                  National Ocean Service                IDB PID#:  AC6288
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID:        
LATITUDE:   43° 16.2' N (  43.26969)          LONGITUDE:  77° 37.7' W ( -77.62772)


The bench mark is a disk 44.4 m (145.7 ft) SE of power pole no. 148, 32.9 m
(107.9 ft) SW of the center of Beach Ave, 3.0 m (9.8 ft) NE of power pole with
no numbers (1st pole SW of Beach Ave) and in line with 3 other poles, 15.2 cm
below the ground surface, being the top of a NOS disk crimped atop a 5/8 inch
stainless steel rod driven 7.9 m (25.9 ft) to refusal, and encased in 4 inch PVC
with PVC plug cover and concrete kick block.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  2058 F 1981
                         DESIGNATION:          905 2058 F

MONUMENTATION:           Bench Mark disk                       VM#:        12751
AGENCY:                  National Ocean Survey                 IDB PID#:  AC6286
SETTING CLASSIFICATION:  8X12 Concrete Slab                    OPUS PID:        
LATITUDE:   43° 16.1' N (  43.26900)          LONGITUDE:  77° 37.5' W ( -77.62561)


The BM is a disk on the lake side of Beach Ave, 27.9 m (91.5 ft) E of utility
pole no. 130, 15.7 m (51.5 ft) SE of NE corner of NOAA/NOS gauge house, 13.0 m
(42.7 ft) N of 1.22 m (4.00 ft) diameter tree, being highest point over cross at
center of bronze disk set into SW corner of 2.44 m (8.01 ft) x 3.66 m (12.01 ft)
concrete slab.



                         BENCH MARK STAMPING:  INTAKE
                         DESIGNATION:          905 2058 INTAKE

MONUMENTATION:           Metal Rod                             VM#:        12752
AGENCY:                  National Geodetic Survey              IDB PID#:  OF1085
SETTING CLASSIFICATION:  Copper-clad steel rod                 OPUS PID:        
LATITUDE:   43° 16.1' N (  43.26908)          LONGITUDE:  77° 37.5' W ( -77.62575)


The bench mark is a copper-clad steel rod 32.0 m (105.0 ft) NW of a 1.2 m (4.0
ft) diameter tree, 26.2 m (85.8 ft) NE of center line of Beach Ave, 3.2 m (10.5
ft) SW of W face of water level gauge house, 15.2 cm (0.5 ft) below the ground
surface, being highest point on top of a 5/8-inch diameter copper-coated steel
rod, 4.3 m (14.0 ft) long, access is through a aluminum access cover stamped
intake.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:   
                         DESIGNATION:          905 2058 WINDT

MONUMENTATION:           Survey disk                           VM#:        12756
AGENCY:                  Army Corps of Engineers               IDB PID#:  OF1086
SETTING CLASSIFICATION:  Concrete floor attached to sump       OPUS PID:        
LATITUDE:   43° 16.1' N (  43.26903)          LONGITUDE:  77° 37.5' W ( -77.62575)


The BM is a disk inside of the stone faced concrete NOS water level gauge house,
0.9 meters (3.0 ft) W of E wall, 12.2 cm N of door sill, being the highest
point, over cross at center of bronze disc set into the concrete floor.



                         BENCH MARK STAMPING:  2058 K 1997
                         DESIGNATION:          905 2058 K

MONUMENTATION:           Metal Rod                             VM#:        17017
AGENCY:                  National Geodetic Survey              IDB PID#:  AH9232
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID:        
LATITUDE:   43° 16.2' N (  43.26933)          LONGITUDE:  77° 37.7' W ( -77.62806)


The bench mark is a stainless steel rod 69.5 m (228.0 ft) SW of the centerline
of Beach Ave (this portion of Beach Ave is along the lake), 66.8 meters (219.2
ft) ENE of a nail and washer in a 30 inch lone tree along fence line and on NE
side of the water intake/discharge stream, 59.4 m (194.9 ft) SSE of the
centerline of Beach Ave, 45.4 m (148.9 ft) SE of nail and washer in power pole
(1st pole SW of beach avenue) , 29.9 m (98.1 ft) WSW of nail and washer in W
face of a 12 inch tree (SE most tree in a row of 5), 21.5 m (70.5 ft) NNW of
edge of Slatter Creek, 21.2 m (69.6 ft) SE of nail and washer in power pole with
transformer (2nd pole SW of Beach Ave), driven 10.1 m (33.1 ft) to refusal with
aluminum access cover flush with the ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  BATH HOUSE 1960 KHF
                         DESIGNATION:          BATH HOUSE

MONUMENTATION:           Survey disk                           VM#:        17021
AGENCY:                                                        IDB PID#:  OF1088
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   43° 15.5' N (  43.25830)          LONGITUDE:  77° 36.5' W ( -77.60830)






                         BENCH MARK STAMPING:  331
                         DESIGNATION:          331

MONUMENTATION:           Survey disk                           VM#:        17022
AGENCY:                                                        IDB PID#:        
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   43° 15.7' N (  43.26170)          LONGITUDE:  77° 36.9' W ( -77.61500)




                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:   
                         DESIGNATION:          NO 1

MONUMENTATION:           Chiseled Circle                       VM#:        17023
AGENCY:                                                        IDB PID#:  OF1091
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   43° 15.2' N (  43.25330)          LONGITUDE:  77° 36.6' W ( -77.61000)




                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  WL 129 1935 MCK
                         DESIGNATION:          WL 129

MONUMENTATION:           Survey disk                           VM#:        17024
AGENCY:                                                        IDB PID#:  OF1092
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   43° 15.0' N (  43.25000)          LONGITUDE:  77° 36.9' W ( -77.61500)








Foot Notes:

Above marks are published for informational purposes only.  Long term stability
has not been reviewed prior to publication.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                             D E F I N I T I O N S


The International Great Lakes Datum (IGLD) is the vertical height reference
datum used in the Great Lakes/St. Lawrence River System for engineering,
charting, channel dredging, navigation safety, power generation, and water 
resource management. It is a coordinated datum between the United States and
Canada that ensures both countries are using the same reference for projects
in the Great Lakes basin. The datum origin, or zero, is defined as Mean Sea 
Level at Pointe-au-Pere /Rimouski, Quebec, Canada at the mouth of the 
St. Lawrence River. IGLD requires updating approximately every 25-30 years 
to account for varying changes in the land surface elevations following the 
retreat of the glaciers during the last ice age, referred to as Glacial 
Isostatic Adjustment (GIA). The current IGLD 1985 was implemented in 1992.

IGLD 1985 uses dynamic heights as the vertical reference standard and lakes
station water level elevations are adjusted to provide a level geopotential
plane for lake level reference.

Dynamic height is the potential difference along the plumbline between the 
vertical datum and a point of interest divided by a constant value of 
gravity. In Canada and USA, the constant value of gravity is the 
"normal gravity" on the ellipsoid at latitude 45 (9.806199 ms-2). Dynamic 
heights have no geometric meaning. They are mainly used for the management 
of water in large lakes, rivers and channels. The surface of a lake has a 
constant dynamic height if undisturbed by currents, winds, atmospheric 
pressure, etc.

The Hydraulic Corrector (HC) is the difference in the long term water level 
mean between Subordinate and Master station. The difference (HC) is 
subtracted algebraically at the subordinate gauge referencing the same 
elevation as the master station. Thus all water levels on a given lake can 
be referenced to the same lakes LWD/Chart Datum reference elevation.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  9 of  9

                                                                                
Station ID: 9052058                         PUBLICATION DATE:  08/11/2017
Name:       ROCHESTER, LAKE ONTARIO                           
            NY
NOAA Chart: 14815                           Latitude:   43° 16.1' N (  43.26903)
USGS Quad:                                  Longitude:  77° 37.5' W ( -77.62575)


                             D E F I N I T I O N S


A Master Stations is the control point for determining water level 
elevations on a particular lake of the Great Lakes.   Since water surfaces
of the Great Lakes are considered to be at geopotential equal, all Mean 
Water Level (MWL) values for stations on a particular lake should have the 
same dynamic height.  Therefore, all subordinate water level station MWL 
values are adjusted to match the dynamic water level elevation of the Master
Station through the use of a hydraulic corrector.  In the establishment of 
International Great Lakes Datum (1985) the connecting waterways station 
dynamic elevations were calculated through the use of a linear regression 
while constraining the end points of the regression with the dynamic 
elevations of the corresponding master station above and below the 
connecting channel.

NAVD88 is a fixed datum derived from a simultaneous, least squares, minimum
constraint adjustment of Canadian/Mexican/United States leveling 
observations.  Local mean sea level observed at Father Point/Rimouski,
Canada was held fixed as the single initial constraint.  NAVD88 replaces 
NGVD29 as the national standard geodetic reference for heights.  Bench mark 
elevations relative toNAVD88 are available from NGS through the World Wide 
Web at National Geodetic Survey.

The Vertical Mark Number (VM#) and PID# shown on the bench mark sheet are unique
identifiers for bench marks in the tidal and geodetic databases, respectively.
Each bench mark in either database has a single, unique VM# and/or PID# assigned.
Where both VM# and PID# are indicated, both tidal and geodetic elevations are
available for the bench mark listed. The NGS's Integrated Data Base (IDB PID)
provides geodetic datum based on traditionally leveled and bluebooked ties to
the National Spatial Reference System(NSRS) https://www.ngs.noaa.gov/datasheets/.
The NGS Online Positioning User Service (OPUS PID) provides geodetic datum based
on GPS position & tie it to the NSRS https://www.ngs.noaa.gov/OPUS/.


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Products available at 9052058 Rochester, NY

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services