Skip to Content

Details for Benchmark: AK5413

N 28° 05.100 W 080° 36.483 (NAD 83)

Altitude: 21.84

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

Location:
In BREVARD county, FL View Original Datasheet
Designation:
W 229 RESET
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

The third one of the day and the trickiest one by far. Yes the marker makes it easy and the other comment even easier but it is still very well covered. Just take a look and you will find it. I thought I would need a tool but that isn't so. Another wonderful find this morning!

[Photos:]
photo3

Yup, the witness post makes this an easy one.

[Photos:]
photoAK5413

An easy one - picture didn't turn out too well since I had a hard time getting all of the wet sand off of the disk. :(

Easy found, not easy to figure out. It was right on edge of road, covered with grass and sand - "Witness Post" helped us find it. GC coords had us looking around the south side of Hibuscus, turns out it was on the north side. It seems that this a replacement for AK4014 - just guessing.
Benchmark Disk - Stamping:W229 RESET 1977

See AK4014 ==> http://www.geocaching.com/mark/details.aspx?PID=Ak4014

[This entry was edited by Frog Man on Thursday, October 20, 2005 at 11:54:05 AM.]

[Photos:]
photoActual Benchmark Disk
photoWitness Pole

Recovered in good condition, although with many unanswered questions. Is this is also AK4014? Or is the nearby U.S. Coast and Geodetic Survey disc which is stamped NO.AP50 actually AK4014? See photos.

[Photos:]
photoGraveyard site
photoClose Up of Mystery Disk

Witness Post makes this an easy Mark!

Found between curb and witness post.

[Photos:]
photoAK5413 - W 229 RESET
photoAK5413 - W 229 reset
Witness Post. BM is rught in front of it

Found in good shape.
tdjvolks.

[Photos:]
photoBM AK5413
photoBM AK5413 with GPS
photoWitness Post

I was almost disappointed with this one. I found the Witness post but no benchmark. There had been some recent landscaping done in the area. I decided where it should be and kicked the dirt. TADA!! It was covered by about an inch of dirt. It was found in good shape. Better shape than it's neighbors I would guess. See view.

[Photos:]
photoBenchmark
photoView North West
Do Not Disturb

Documented History (by the NGS)

01/01/1977 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1977 IN MELBOURNE. 0.1 MILE WEST ALONG HIBISCUS BOULEVARD FROM ITS JUNCTION WITH U.S. HIGHWAY 1 IN MELBOURNE, 43.0 FEET SOUTHWEST OF THE SOUTHWEST RAIL OF THE RAILROAD TRACK, 30.0 FEET NORTH OF THE CENTER OF HIBISCUS BOULVARD, 21.5 FEET EAST OF A CONCRETE POWER POLE WITH A TRANSFORMER, 32.0 FEET EAST OF A PROJECTED CENTERLINE OF WAVERLY PLACE, 45.5 FEET NORTHEAST OF THE CENTER OF AN IRON MANHOLE COVER AT THE JUNCTION OF HIBISCUS BOULVARD AND WAVERLY PLACE, 1.5 FEET EAST OF A CONCRETE DIVIDER CURB, AND 1.0 FOOT NORTH OF A CONCRETE CURB OF HIBISCUS BOULVARD. THE MARK IS 1.0 FT S FROM A WITNESS POST.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (IEE) RECOVERED IN GOOD CONDITION.
02/15/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 IN MELBOURNE, AT THE INTERSECTION OF THE FLORIDA EAST COAST RAILROAD AND HIBISCUS AVENUE, NEAR THE SOUTHEAST CORNER OF THE MELBOURNE CEMETERY, 14.4 M (47.2 FT) WEST OF THE NEAR RAIL, 4.4 M (14.4 FT) NORTH OF AND LEVEL WITH THE CENTERLINE OF THE WESTBOUND LANES OF THE AVENUE, AND 1.4 M (4.6 FT) SOUTH OF A WITNESS POST.
04/03/1991 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1991 (GVK) RECOVERED IN GOOD CONDITION.

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 May 1994.
  • 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.

Advertising with Us

Return to the Top of the Page