U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) To reach the tidal bench marks from the junction of U.S. Highway 1 and State Route 191 in East Machias, proceed east on State Route 191 to the main gate of Cutler Naval Communications Center. Obtain permission and a pass to visit the tide station from the guard at the gate. Continue east on State Route 191 for approximately 4.8 km (3 mi) to the bay, follow the road to the right through a gate to the fuel pier. The bench marks are located within a 1.6 km (1 mi) radius of the station. The tide house is located on the northern end of the pier. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 1250 M 1991 DESIGNATION: 841 1250 M TIDAL MONUMENTATION: Tidal Station disk VM#: 13801 AGENCY: National Ocean Service (NOS) IDB PID#: AJ2727 SETTING CLASSIFICATION: Bedrock outcrop OPUS PID: LATITUDE: 44° 38.5' N ( 44.64139) LONGITUDE: 67° 17.7' W ( -67.29489) The primary bench mark is a disk set in a bedrock outcrop located on the north side of the road leading to the fuel pier, 51.51 m (169.0 ft) WSW of the face of the concrete fuel pumping station, 40.35 m (132.4 ft) east of the NE corner of Building number 121, 21.94 m (72.0 ft) NNE of the centerline of the road leading to the fuel pier, and 0.18 m (0.6 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1250 A 1978 DESIGNATION: 841 1250 A MONUMENTATION: Tidal Station disk VM#: 153 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete bollard foundation OPUS PID: LATITUDE: 44° 38.5' N ( 44.64136) LONGITUDE: 67° 17.8' W ( -67.29717) The bench mark is a disk set in the concrete foundation for the bollard located at the NW corner of the fuel pier, 5.46 m (17.9 ft) west of the entrance to the seawater pump house, 4.39 m (14.4 ft) SW of the west side of the catwalk leading to the northern octagon shaped pier, and 0.61 m (2.0 ft) north of the bollard. BENCH MARK STAMPING: 1250 B 1978 DESIGNATION: 841 1250 B MONUMENTATION: Tidal Station disk VM#: 154 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete bollard foundation OPUS PID: LATITUDE: 44° 38.5' N ( 44.64119) LONGITUDE: 67° 17.8' W ( -67.29725) The bench mark is a disk set in the concrete foundation for the bollard located at the SW corner of the fuel pier, 19.02 m (62.4 ft) SW of the SW corner of the seawater pump house, 6.07 m (19.9 ft) NW of the west side of the catwalk leading to the southern octagon shaped pier, 0.70 m (2.3 ft) NW of the SW face of the pier, and 0.61 m (2.0 ft) NW of the bollard.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1250 C 1978 DESIGNATION: 841 1250 C MONUMENTATION: Tidal Station disk VM#: 155 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete foundation OPUS PID: LATITUDE: 44° 38.5' N ( 44.64150) LONGITUDE: 67° 17.8' W ( -67.29694) The bench mark is a disk set in the concrete foundation of the light pole located in the vicinity of the seawater pump house on the fuel pier, 7.89 m (25.9 ft) south of the south corner of the seawater pump house, 2.74 m (9.0 ft) south of the pier centerline, and 0.18 m (0.6 ft) north of the south face of the pier. BENCH MARK STAMPING: 1250 D 1978 DESIGNATION: 841 1250 D MONUMENTATION: Tidal Station disk VM#: 156 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete retaining wall OPUS PID: LATITUDE: 44° 38.5' N ( 44.64128) LONGITUDE: 67° 17.7' W ( -67.29547) The bench mark is a disk set in the concrete retaining wall located along the southern side of the fuel pier, 10.12 m (33.2 ft) SW of the SW corner of the stripper pump house, 4.36 m (14.3 ft) west of the fire hydrant on the south face of the pier, 2.87 m (9.4 ft) south of the pier centerline, 3.11 m (10.2 ft) south of the centerline of the concrete walkway leading to the tide house, and 0.52 m (1.7 ft) south of the west end of the wooden guard railing.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1250 E 1978 DESIGNATION: 841 1250 E MONUMENTATION: Tidal Station disk VM#: 157 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete retaining wall OPUS PID: LATITUDE: 44° 38.5' N ( 44.64172) LONGITUDE: 67° 17.7' W ( -67.29567) The bench mark is a disk set in the concrete retaining wall located along the north side of the fuel pier, 8.90 m (29.2 ft) west of the NW corner of the stripper pump house, 6.40 m (21.0 ft) north of the pier centerline, and 0.43 m (1.4 ft) east of the west face of the wall. BENCH MARK STAMPING: 1250 H 1978 DESIGNATION: 841 1250 H MONUMENTATION: Tidal Station disk VM#: 159 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete step OPUS PID: LATITUDE: 44° 38.5' N ( 44.64153) LONGITUDE: 67° 17.7' W ( -67.29439) The bench mark is a disk set in the bottom step of the NE entrance to the power plant, building number 103, 23.68 m (77.7 ft) west of the centerline of the road around the building, 9.85 m (32.3 ft) north of the NW corner of the chain link fence surrounding transformers, 0.85 m (2.8 ft) east of the east wall, and 0.12 m (0.4 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1250 J 1978 DESIGNATION: 841 1250 J MONUMENTATION: Tidal Station disk VM#: 160 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Telephone manhole OPUS PID: LATITUDE: 44° 38.6' N ( 44.64258) LONGITUDE: 67° 17.5' W ( -67.29194) The bench mark is a disk set on top of a telephone manhole located along the road leading to the power plant, 0.2 km (0.1 mi) east of the intersection of the power plant road and the road leading to the pier, 18.50 m (60.7 ft) north of the power plant road centerline, 2.80 m (9.2 ft) SW of another manhole, and 0.85 m (2.8 ft) above ground. BENCH MARK STAMPING: 1250 K 1978 DESIGNATION: 841 1250 K MONUMENTATION: Tidal Station disk VM#: 161 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Telephone manhole OPUS PID: LATITUDE: 44° 38.6' N ( 44.64314) LONGITUDE: 67° 17.4' W ( -67.29056) The bench mark is a disk set on top of a telephone manhole located along the road leading to the power plant, 0.3 km (0.2 mi) east of the intersection of the road leading to the pier and the power plant road, 19.90 m (65.3 ft) north of power plant road centerline, 2.83 m (9.3 ft) SW of the center of the easterly manhole, and 0.85 m (2.8 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1250 L 1978 DESIGNATION: 841 1250 L MONUMENTATION: Tidal Station disk VM#: 162 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Foundation for large antenna OPUS PID: LATITUDE: 44° 38.7' N ( 44.64500) LONGITUDE: 67° 17.4' W ( -67.29000) The bench mark is a disk set in the westernmost concrete foundation supporting tower number 385 of radio tower N-7, located along dirt road H north of the dirt road's intersection with the road leading to the power plant, 27 m (89 ft) east of the centerline of road H, 5.15 m (16.9 ft) east of the east side of building number 388, and 1 m (2 ft) above ground. BENCH MARK STAMPING: 1250 N 1991 DESIGNATION: 841 1250 N MONUMENTATION: Tidal Station disk VM#: 13802 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: In bedrock OPUS PID: LATITUDE: 44° 38.6' N ( 44.64308) LONGITUDE: 67° 17.4' W ( -67.28956) The bench mark is a disk set in bedrock located on the south side of the road leading to the power plant, 69 m (225 ft) SW of the centerline of the power plant road and dirt road H intersection, 49 m (160 ft) east of the SE corner of a drain culvert, 26.52 m (87.0 ft) SSE of the centerline of the road leading to the power plant, and 0.21 m (0.7 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) T I D A L D A T U M S Tidal datums at CUTLER NAVAL BASE, MACHIAS BAY based on: LENGTH OF SERIES: 10 YEARS TIME PERIOD: September 1999 - August 2009 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8418150 PORTLAND, CASCO BAY Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (01/10/1997) = 5.367 MEAN HIGHER HIGH WATER MHHW = 4.132 MEAN HIGH WATER MHW = 4.004 MEAN TIDE LEVEL MTL = 2.059 MEAN SEA LEVEL MSL = 2.057 MEAN LOW WATER MLW = 0.115 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (03/16/1980) = -1.013 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 1250 M 1991 8.854 4.850 1250 A 1978 7.118 3.114 1250 B 1978 7.125 3.121 1250 C 1978 7.113 3.109 1250 D 1978 6.627 2.623 1250 E 1978 6.643 2.639 1250 H 1978 11.511 7.507 1250 J 1978 15.532 11.528 1250 K 1978 15.372 11.368 1250 L 1978 14.975 10.971 1250 N 1991 16.654 12.650
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 8 Station ID: 8411250 PUBLICATION DATE: 06/23/2010 Name: CUTLER NAVAL BASE, MACHIAS BAY ME NOAA Chart: 13327 Latitude: 44° 38.5' N ( 44.64170) USGS Quad: MACHIAS BAY Longitude: 67° 17.8' W ( -67.29670) D E F I N I T I O N S Mean Sea Level (MSL) is a tidal datum determined over a 19-year National Tidal Datum Epoch. It pertains to local mean sea level and should not be confused with the fixed datums of North American Vertical Datum of 1988 (NAVD88). 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 to NAVD88 are available from NGS through the World Wide Web at National Geodetic Survey. NGVD29 is a fixed datum adopted as a national standard geodetic reference for heights but is now considered superseded. NGVD29 is sometimes referred to as Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological Survey Topographic Quads. NGVD29 was originally derived from a general adjustment of the first-order leveling networks of the U.S. and Canada after holding mean sea level observed at 26 long term tide stations as fixed. Numerous local and wide-spread adjustments have been made since establishment in 1929. Bench mark elevations relative to NGVD29 are available from the National Geodetic Survey (NGS) data base via the World Wide Web at National Geodetic Survey. NAVD88 and NGVD29 are fixed geodetic datums whose elevation relationships to local MSL and other tidal datums may not be consistent from one location to another. 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/. The NAVD88 elevation is shown on the Elevations of Tidal Datums Table Referred to MLLW only when two or more of the bench marks listed have NAVD88 elevations. The NAVD88 elevation relationship shown in the table is derived from an average of several bench mark elevations relative to tide station datum. As a result of this averaging, NAVD88 bench mark elevations computed indirectly from the tidal datums elevation table may differ slightly from NAVD88 elevations listed for each bench mark in the NGS database.