BM0585 - "Y 1222" bench mark disk - Austin, TX
Posted by: Groundspeak Premium Member Raven
N 30° 16.065 W 097° 46.076
14R E 618514 N 3349097
Quick Description: This benchmark is located within Zilker Park -- on the southern edge of the limestone outcrop known as "Rock Island" -- in Austin, Texas.
Location: Texas, United States
Date Posted: 4/17/2015 9:04:01 AM
Waymark Code: WMNQ5T
Published By: Groundspeak Premium Member Ernmark
Views: 0

Long Description:
As described by the NGS in 1973:

"1.0 MI W FROM AUSTIN.
ABOUT 0.3 MILES SOUTH SOUTHWEST ALONG LAMAR BLVD FROM THE SOUTH END OF A CONCRETE BRIDGE OVER THE COLORADO RIVER AT AUSTIN THENCE 0.7 MILES NORTHWEST ALONG RANCH ROAD 2244 THE BARTON SPRINGS ROAD, THENCE 0.1 MILES NORTHEAST ACROSS AND OPEN AREA OF ZILKER PARK TO A PROMINENT 22 FOOT BY 160 FEET ROCK FORMATION SURROUNDED BY SCATTERED TREES, 0.15 MILES EAST OF STRUTFORD DRIVE, 75.0 FEET WEST OF THE EAST END OF THE ROCK FORMATION, 83.0 FEET EAST OF A 3.0 FOOT SQUARE METAL METER BOX, SET IN TOP OF THE SOUTH EDGE OF A LIMESTON ROCK FORMATION, 3.5 FEET ABOVE THE GROUND. NOTE-- 0.2 MILES NORTHEAST OF THE BENCH MARK OUTCROP N 804."

The 1973 description and associated reference points (i.e. distances/directions) are still good references for locating this station, but a few minor corrections might be in order:
* "RANCH ROAD 2244" is now just called "Barton Springs Road"; both references to the old name should be ignored.
* "STRUTFORD DRIVE" is misspelled: it is "Stratford Drive"
All other references and associated distances -- including "N 804", which is also a waymark: "WMNQ5K" -- are correct.

Its associated NGS Data Sheet's posted coordinates are about 11 ft off from my own observations: the NGS reports the station at "N 30 16 03.81 W 097 46 04.50" which was somewhat a little off from my own readings -- as measured within 10' accuracy and 20+ reading averages: "N 30° 16.065 W 097° 46.076".

The station was recovered in "fair" (not "good") condition: The disk and setting are fine, but the markings have faded somewhat due to scratches. See posted waymark's gallery images for BM close-up and setting details; some additional pictures are also available on the NGS website itself.

---

Below are some additional facts, per the NGS database (with some editing for length): (visit link)

BM0585 ***********************************************************************
BM0585 DESIGNATION - Y 1222
BM0585 PID - BM0585
BM0585 STATE/COUNTY- TX/TRAVIS
BM0585 COUNTRY - US
BM0585 USGS QUAD - AUSTIN WEST (1988)
BM0585
BM0585 *CURRENT SURVEY CONTROL
BM0585 ______________________________________________________________________
BM0585* NAD 83(1986) POSITION- 30 16 03.81 (N) 097 46 04.50 (W) HD_HELD1
BM0585* NAVD 88 ORTHO HEIGHT - 146.314 (meters) 480.03 (feet) ADJUSTED
BM0585 ______________________________________________________________________
BM0585
BM0585_MARKER: DB = BENCH MARK DISK
BM0585_SETTING: 36 = SET IN A MASSIVE STRUCTURE
BM0585_SP_SET: FOUNDATION
BM0585_STAMPING: Y 1222 1973
BM0585_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
BM0585
BM0585 HISTORY - Date Condition Report By
BM0585 HISTORY - 1973 MONUMENTED NGS
BM0585 HISTORY - 1983 GOOD USPSQD
BM0585 HISTORY - 1984 GOOD TXHD
BM0585 HISTORY - 1989 GOOD USPSQD
BM0585 HISTORY - 1989 GOOD USPSQD
BM0585 HISTORY - 1989 GOOD USPSQD
BM0585 HISTORY - 1989 POOR USPSQD
BM0585 HISTORY - 1990 GOOD USPSQD
BM0585 HISTORY - 19910208 GOOD USPSQD
BM0585 HISTORY - 20010224 GOOD USPSQD
BM0585 HISTORY - 20021103 GOOD GEOCAC
BM0585 HISTORY - 20050226 GOOD USPSQD
BM0585 HISTORY - 20070218 GOOD USPSQD
Condition: Mark found in good condition

Designation: Y 1222

Benchmark Agency: U.S. Coast & Geodetic Survey

Monumentation type: BENCH MARK (or B.M.) disk

County: Austin, Travis County

USGS 7.5' Topographic Quadrangle Name: Austin West

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: BM0585

Benchmark Agency (if other): Not listed

Monumentation type (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:
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Raven visited BM0585 - "Y 1222" bench mark disk - Austin, TX 8/16/2014 Raven visited it