Details for Benchmark: HT1613

N 37° 18.900 W 122° 02.967 (NAD 83)

Altitude: 340.2

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

Location:
In SANTA CLARA county, CA View Original Datasheet
Designation:
U 1077 RESET 1967
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Navigation

Mark Destroyed 06/02/2015 Rachell marked HT1613 as destroyed   Visit Log

This benchmark is not here. The benchmark reported by the previous finder is a SCVWD benchmark (see photo). It is near the location but is not the USGS benchmark in the description.

[Photos:]
photoSCVWD Benchmark
photoSCVWD BM with Markings
Found it 07/09/2007 kg6ykn found HT1613   Visit Log

Found it near the Crossing. Be careful to not hit your head on the crossing arm.
[Easy to find, not to bad of a location]
Didn't find it 01/31/2003 FredHyden couldn't find HT1613   Visit Log

The Shell Service Station is now a 7-11. It was easy to follow the directions but the 20 x 36-inch concrete base wasn't there. The power pole is right where it should be. I would guess that the benchmark was destroyed during reconstruction.

Documented History (by the NGS)

01/01/1967 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1967 4.1 MI NW FROM SARATOGA. 2.0 MILES NORTH ALONG THE SARATOGA-SUNNYVALE ROAD FROM THE POST OFFICE AT SARATOGA, THENCE 2.1 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD, ABOUT 88 YARDS SOUTHWEST OF THE CENTER OF THE CROSSING OF MC CLELLAN ROAD, AT A SHELL SERVICE STATION, SET IN THE TOP OF A 20 X 36-INCH CONCRETE BASE SUPPORTING A SHELL SIGN POLE AND A METAL LIGHT STANDARD, 168 FEET SOUTH OF THE CENTER OF THE INTERSECTION OF BUBB ROAD AND MC CLELLAN ROAD, 35 FEET EAST OF THE CENTERLINE OF BUBB ROAD, 11.8 FEET EAST OF A POWERLINE POLE, 0.5 FOOT SOUTHWEST OF THE NORTHEAST CORNER OF THE BASE, ABOUT 1 FOOT HIGHER THAN BUBB ROAD, AND 0.9 FOOT ABOVE THE SURROUNDING PAVEMENT.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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