BH3138 Mobile Point Light -- Fort Morgan AL
Posted by: Groundspeak Premium Member Benchmark Blasterz
N 30° 13.693 W 088° 01.434
16R E 401471 N 3344517
Second of two intersection station benchmarks located in the same tower at Fort Morgan
Waymark Code: WMNEB0
Location: Alabama, United States
Date Posted: 02/27/2015
Published By:Groundspeak Premium Member Ernmark
Views: 4

These two benchmarks refer to different lights on the same tower.

The top light is designated BH3138 Mobile Point Light.

The light in the upper third of the tower is BH3140 Mobile Bay Rear Range Light.

The data sheet for BH3138 Mobile Point Light follows:

BH3138 DESIGNATION - MOBILE POINT LIGHT
BH3138 PID - BH3138
BH3138 STATE/COUNTY- AL/BALDWIN
BH3138 USGS QUAD - FORT MORGAN (1982)
BH3138
BH3138 *CURRENT SURVEY CONTROL
BH3138 ___________________________________________________________________
BH3138* NAD 83(1992)- 30 13 41.53396(N) 088 01 26.45804(W) ADJUSTED
BH3138* NAVD 88 - 37. (meters) 121. (feet) VERTCON
BH3138 ___________________________________________________________________
BH3138 LAPLACE CORR- 0.50 (seconds) DEFLEC99
BH3138 GEOID HEIGHT- -27.53 (meters) GEOID99
BH3138
BH3138 HORZ ORDER - THIRD
BH3138
BH3138.The horizontal coordinates were established by classical geodetic methods
BH3138.and adjusted by the National Geodetic Survey in December 1992.
BH3138
BH3138.The NAVD 88 height was computed by applying the VERTCON shift value to
BH3138.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
BH3138
BH3138.The Laplace correction was computed from DEFLEC99 derived deflections.
BH3138
BH3138.The geoid height was determined by GEOID99.
BH3138
BH3138; North East Units Scale Converg.
BH3138;SPC AL W - 25,411.839 549,558.728 MT 0.99996471 -0 15 49.7
BH3138;UTM 16 - 3,344,515.981 401,460.160 MT 0.99971979 -0 30 56.1
BH3138
BH3138 SUPERSEDED SURVEY CONTROL
BH3138
BH3138 NAD 83(1986)- 30 13 41.55956(N) 088 01 26.45912(W) AD( ) 3
BH3138 NGVD 29 - 37. (m) 121. (f) VERT ANG
BH3138
BH3138.Superseded values are not recommended for survey control.
BH3138.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
BH3138.See file dsdata.txt to determine how the superseded data were derived.
BH3138
BH3138_MARKER: 14 = NAVIGATION LIGHT
BH3138
BH3138 HISTORY - Date Condition Recov. By
BH3138 HISTORY - 1982 FIRST OBSERVED NOS
BH3138
BH3138 STATION DESCRIPTION
BH3138
BH3138''DESCRIBED BY NATIONAL OCEAN SERVICE 1982 (RKM)
BH3138''STATION IS A NAVIGATIONAL LIGHT LOCATED NEAR FORT MORGAN.
BH3138''
BH3138''TO REACH THE STATION HEAD W ON HWY 180 FROM THE INTERSECTION OF
BH3138''HWY 59 AND HWY 180 IN GULF SHORES FOR 35 KILOMETERS (22 MILES) TO
BH3138''FORT MORGAN. DRIVE AROUND TO THE BACK OF FORT MORGAN AND TO THE
BH3138''AREA OF THE COAST GUARD LIGHT STATION. THE TOWER AND STATION ARE
BH3138''JUST N OF THE COAST GUARD STATION. THE LIGHT IS LOCATED AT THE
BH3138''TOP OF THE TOWER, ABOVE THE ORANGE AND WHITE STRIPED DAYBEACON
BH3138''WHICH SERVES AS THE REAR RANGE. THE STATION IS 184 M N OF STATION
BH3138''WHITING 82 AND IS 738 M FROM THE FRONT RANGE LIGHT.
BH3138''
BH3138''STATION IS A LARGE WHITE ROTATING LIGHT ONTOP OF THE TOWER.
Condition: Mark found in good condition

Designation: -blank-

Benchmark Agency: National Ocean Service

Monumentation type: other (not any of the below)

Monumentation type (if other): Navigation Light

County: Baldwin

USGS 7.5' Topographic Quadrangle Name (optional): Fort Morgan

Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used

Web address of this benchmark's datasheet (optional): [Web Link]

NGS PID: BH3138

Benchmark Agency (if other): Not listed

Special category (optional): Not listed

Special Category (if other): Not listed

Local database's URL (optional): Not listed

Visit Instructions:
  1. A closeup photo of the mark taken by you is required.
  2. A 'distant' photo including the mark in the view is highly recommended. Include the compass direction you faced when you took the picture.
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Recent Visits/Logs:
Date Logged Log User Rating  
kJfishman visited BH3138 Mobile Point Light -- Fort Morgan AL 01/19/2023 kJfishman visited it
veritas vita visited BH3138 Mobile Point Light -- Fort Morgan AL 11/04/2017 veritas vita visited it
Benchmark Blasterz visited BH3138 Mobile Point Light -- Fort Morgan AL 01/01/2015 Benchmark Blasterz visited it

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