U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) TO REACH THE NOS GAUGING STATION, AT FAIRPORT HARBOR, ERIE COUNTY, OHIO, FROM THE INTERSECTION OF HWY 2 AND HWY 44, PROCEED NORTH ON HWY 44 FOR 3.86 KM (2.40 MI) , AT THE STOP SIGN, BEAR RIGHT AND TAKE IMMEDIATE LEFT, PROCEEDING NORTH ON UNMARKED PAVED ROAD FOR APPROX 0.80 KM (0.50 MI) TO GRAVEL ROAD LEADING TO COAST GUARD PROPERTY,PROCEED NORTH ON COAST GUARD ROAD FOR APPROX 0.97 KM (0.60 MI) TO THE COAST GUARD SECURITY GATE, GAUGE HOUSE IS ON THE SOUTHEAST CORNER OF USCG PROPERTY. G R E A T L A K E S B E N C H M A R K S
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S PRIMARY BENCH MARK STAMPING: K 321 1981 DESIGNATION: K 321 MONUMENTATION: Flange-encased Rod VM#: 71 AGENCY: National Geodetic Survey IDB PID#: MB1625 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 41° 45.6' N ( 41.75967) LONGITUDE: 81° 16.9' W ( -81.28181) The bench mark is a stainless steel rod and is near the SE corner of the Coast Guard property, and is S of the SE corner of a 1.83 m (6.00 ft) by 1.83 m (6.00 ft) square septic tank projecting 0.60 m (1.97 ft) above the ground, 8.45 m (27.72 ft) NE of the SW corner post of the chain link property line fence, 7.62 m (25.00 ft) NW of the W entrance gate post of the S entrance gate of the coast guard station, 2.74 m (8.99 ft) N of the chain link fence, and 1.76 m (5.77 ft) S of the SE corner of the septic tank, encased in a 5" PVC pipe with an NGS logo cover, stamped "K 321 1981" surrounded by concrete and flush with the ground. BENCH MARK STAMPING: 906 3053 FENCE DESIGNATION: 906 3053 FENCE MONUMENTATION: Metal Rod VM#: 12722 AGENCY: National Geodetic Survey IDB PID#: MB1623 SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID: LATITUDE: 41° 45.6' N ( 41.76003) LONGITUDE: 81° 16.9' W ( -81.28192) The bench mark is a copper clad steel rod 36.89 m (121.03 ft) W of the NW corner of the main building, 0.40 m (1.31 ft) E of the N-S fence line, 0.076 n (0.249 ft) below the ground, being a 5/8-inch copper-coated steel rod, 4.57 m (14.99 ft) long. The rod is encased in a 5-inch PVC pipe with an NGS logo cover, stamped "9063053 Fence" set in 1981; pipe is flush with the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: 3053 D 1982 DESIGNATION: 906 3053 D MONUMENTATION: Bench Mark disk VM#: 12723 AGENCY: National Ocean Service (NOS) IDB PID#: MB1622 SETTING CLASSIFICATION: Gage House Foundation OPUS PID: LATITUDE: 41° 45.6' N ( 41.75975) LONGITUDE: 81° 16.9' W ( -81.28106) The bench mark is a disk 29.67 m (97.34 ft) SE of the SE corner of the boat garage, 14.29 m (46.88 ft) S of the steel bulk head, 2.30 m (7.55 ft) E of the NW corner of the concrete foundation of the NOS water level gauge house, 0.20 m (0.66 ft) NE of the NE corner of the NOS water level gauge house, the BM being a standard NOS disc set in concrete flush with base. This is the MET SRM. BENCH MARK STAMPING: DESIGNATION: 906 3053 LIGHTHOUSE MONUMENTATION: Chiseled Cross VM#: 13027 AGENCY: US Engineers IDB PID#: MB1632 SETTING CLASSIFICATION: Lighthouse Foundation OPUS PID: LATITUDE: 41° 45.4' N ( 41.75692) LONGITUDE: 81° 16.6' W ( -81.27747) The bench mark is a chiseled cross 20.12 m (66.01 ft) N of the center of Second Street, 14.33 m (47.01 ft) W of the center line of High Street, 8.40 m (27.56 ft) S of the NW corner of the garage, 0.39 m (1.28 ft) W of the inside edge of the drive way, 0.35 m (1.15 ft) E of the lighthouse basin.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: 906 3053 WORKS DESIGNATION: 906 3053 WORKS MONUMENTATION: Metal Rod VM#: 13028 AGENCY: US Lakes Survey IDB PID#: MB1633 SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID: LATITUDE: 41° 45.5' N ( 41.75831) LONGITUDE: 81° 16.7' W ( -81.27831) The bench mark is a copper-clad steel rod 27.9 m (91.5 ft) WSW of the center of the main gate entrance, 8.14 m (26.71 ft) N of the E-W fence line, 0.30 m (0.98 ft) E of the SE corner of the concrete slab covering water filters. The rod was encased in a 5-inch PVC pipe with an NGS logo cap in 1981, pipe is flush with the ground. BENCH MARK STAMPING: 3053 E 1996 DESIGNATION: 906 3053 E MONUMENTATION: Tidal Station disk VM#: 17034 AGENCY: National Ocean Service (NOS) IDB PID#: DI3202 SETTING CLASSIFICATION: Stainless steel rod w/o sleeve OPUS PID: LATITUDE: 41° 45.6' N ( 41.75964) LONGITUDE: 81° 17.0' W ( -81.28342) The bench mark is a disk on the E side of the road, 18.30 m (60.04 ft) SE of the center of a double chain link fence gate to the park, 16.2 m (53.1 ft) NE of a power pole number 846170, 6.13 m (20.11 ft) E of the centerline of the paved road, 1.26 m (4.13 ft) SW of the end of a metal fence post, being a standard NOS disc crimped to the end of a stainless steel rod driven 11.0 m (36.1 ft) to refusal, encased in a 5-inch PVC pipe with an aluminum access cover stamped "3053 E 1996" surrounded by concrete and flush with the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: 3053 F 1997 DESIGNATION: 906 3053 F MONUMENTATION: Metal Rod VM#: 17035 AGENCY: National Geodetic Survey IDB PID#: AH9235 SETTING CLASSIFICATION: Stainless steel rod w/o sleeve OPUS PID: LATITUDE: 41° 45.1' N ( 41.75133) LONGITUDE: 81° 17.2' W ( -81.28653) The bench mark is a stainless steel rod and is set in a grassy field across from the LTV Steel Lime plant yard area, 59.74 m (196.00 ft) W of a power pole marked "6658", 48.7 m (159.8 ft) SW of a power pole marked "6664" on the W side of access road, 39.2 m SW of centerline of access road, 30.5 m (100.1 ft) SSW of an unmarked power pole, 0.45 m (1.48 ft) ENE of witness post, 3.0 cm below ground level, being a stainless steel rod, 16.0 ft (4.9 m) long, the rod is encased in a 5-inch PVC pipe with an NGS logo cover, stamped "906 3053 F 1997", surrounded by concrete and just counter sunk.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: X 323 1981 DESIGNATION: X 323 MONUMENTATION: Metal Rod VM#: 17140 AGENCY: National Geodetic Survey IDB PID#: MB1620 SETTING CLASSIFICATION: Stainless steel rod w/o sleeve OPUS PID: LATITUDE: 41° 45.2' N ( 41.75281) LONGITUDE: 81° 17.3' W ( -81.28831) The bench mark is a stainless steel rod 15.34 m (50.33 ft) W of the center of the park entrance road, 14.48 m (47.51 ft) E of the centerline of the park exit drive, 6.30 m (20.67 ft) SE of the SW corner of the park sigh at the entrance, 5.82 m (19.09 ft) S of the sign, 0.09 m (0.30 ft) below ground level, encased in a PVC sleeve with aluminum access cover, the mark is in the public right-of-way and is accessible at all times.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: FRP-1000-0 2005 DESIGNATION: FRP-1000-0 MONUMENTATION: Survey disk VM#: 18320 AGENCY: USACE IDB PID#: DI3201 SETTING CLASSIFICATION: Concrete foundation OPUS PID: LATITUDE: 41° 45.6' N ( 41.76019) LONGITUDE: 81° 16.9' W ( -81.28117) The bench mark is a disk located on the SE corner of USCG property, 23.67 m (77.66 ft) E of the sheet pile bulk head, 17.39 m (57.05 ft) W of the SE corner of US Coast Guard office and quarters, 13.96 m (45.80 ft) N of the steel bulk head in front of boat house, the BM is set in a concrete foundation supporting a radio tower.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) G R E A T L A K E S B E N C H M A R K S BENCH MARK STAMPING: DESIGNATION: MSFH 8 MONUMENTATION: Flange-encased Rod VM#: 21245 AGENCY: IDB PID#: DP2498 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 41° 45.2' N ( 41.75299) LONGITUDE: 81° 17.3' W ( -81.28828) The bench mark is a stainless steel rod 7.6m (25.0 ft) NE from a utility pole, 6.1m (20.0 ft) W from the edge of pavement of hte entrance drive to Headlands Park and 2.3m (7.5 ft) east of the flag pole. 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 9 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) 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 10 of 10 Station ID: 9063053 PUBLICATION DATE: 08/11/2017 Name: FAIRPORT, LAKE ERIE OH NOAA Chart: 14837 Latitude: 41° 45.6' N ( 41.75975) USGS Quad: Longitude: 81° 16.9' W ( -81.28106) 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/.