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Details for Benchmark: AQ0271

N 29° 53.550 W 081° 18.667 (NAD 83)

Altitude: 6.59

Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)

Location:
In ST JOHNS county, FL View Original Datasheet
Designation:
LIONS
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Walked across the bridge twice today and stopped here to admire the lions.
Seekerfamily

Found

Found it 4/15/15 at 9:16a.

[Photos:]
photoLIONS

Spotted this one while touring the town.

Found it while geocaching St. Augustine.

Found while on vacation in Florida for the week. The lions are really cool

[Photos:]
photo20150709_124332

Found this Benchmark on our trip through St. Augustine.

[Photos:]
photoDSCF9519
photoDSCN0001

Renovation work on the bridge was completed on March 17, 2010 when it reopened for use. The lions restored to their original 1925 location, following completion of the bridge upgrade.

[Photos:]
photoLion

Mark not found--new sidewalk, road, and sod over site.

Documented History (by the NGS)

01/01/1934 by DOD (MONUMENTED)
01/01/1954 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1954 AT ST AUGUSTINE. AT ST. AUGUSTINE, AT THE WEST END OF BRIDGE OF LIONS (STATE HIGHWAY A 1 A) OVER MANTANZAS BAY, IN THE TOP OF A CONCRETE WALKWAY OR PLATFORM, 24 1/2 FEET SOUTH OF CENTER LINE OF HIGHWAY, 35 FEET WEST-SOUTHWEST OF WEST END OF SOUTH RAILING OF BRIDGE, 20 FEET WEST-NORTHWEST OF NORTHWEST CORNER OF BASE OF THE SOUTH ONE OF TWO STONE LION STATUES, AND ABOUT 3/4 FOOT ABOVE LEVEL OF HIGHWAY. NOTE-- THIS MARK SHOULD BE USED WITH CAUTION. CONCRETE SHOWN SIGNS OF CRACKING AND IT IS DOUBTFUL IF MARK WILL RETAIN ITS ORIGINAL ELEVATION.
01/01/1975 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1975 RECOVERED IN GOOD CONDITION.
01/01/1978 by FLDNR (GOOD)
RECOVERY NOTE BY FL DEPT OF NAT RES 1978 RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1989 (JD) MARK NOT FOUND.
03/24/1991 by NGS (MARK NOT FOUND)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 THE SIDEWALK HAS BEEN REPLACED. ASSUMED DESTROYED.
04/03/1991 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1991 (JD) MARK NOT FOUND.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • This Tidal Bench Mark is designated as VM 5204 by the Center for Operational Oceanographic Products and Services.
  • This Tidal Bench Mark is designated as VM 5205 by the Center for Operational Oceanographic Products and Services.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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