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Details for Benchmark: JT2271

N 38° 06.999 W 122° 15.909 (NAD 83)

Altitude: 233

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

Location:
In SOLANO county, CA View Original Datasheet
Designation:
VIEW
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 (JB) JUST NW OF VALLEJO, ON HIGHEST KNOLL ON HIGHEST FLAT-TOPPED HILL, 11.59 METERS (38.0 FEET) SE OF SOUTH GABLE OF SMALL DWELLING HOUSE WHICH WAS FORMERLY A POWER HOUSE, 5.62 METERS (18.4 FEET) S OF ROAD, AND ON PROPERTY BELONGING TO MR. OVERMYER. TO REACH FROM SONOMA AND GEORGIA STREETS IN VALLEJO, FOLLOW SONOMA STREET TO NEBRASKA STREET, TURN LEFT AND GO 1 BLOCK, TURN RIGHT AND GO RIGHT TO STATION SITE. SURFACE AND UNDERGROUND MARKS ARE STANDARD STATION DISKS IN CONCRETE NOTES 1A AND 7A. REFERENCE MARKS ARE STANDARD REFERENCE DISKS IN CONCRETE NOTE 11A. R.M. NO. 1 IS BESIDE WIRE FENCE AND 11.550 METERS (37.89 FEET) FROM STATION IN AZIMUTH 223 DEG 55 MIN R.M. NO. 2 IS 5.3 METERS (17 FEET) W OF CENTER LINE OF ROAD AND 41.670 METERS (136.71 FEET) FROM STATION IN AZIMUTH 346 DEG 17 MIN.
01/01/1938 by CA4020 (MONUMENTED)
RECOVERY NOTE BY CITY OF VALLEJO CALIFORNIA 1938 (TDK) REVISED PUBLISHED DESCRIPTION TO READ AS FOLLOWS--ON A FLAT TOP HILL KNOWN AS VALLEJO HEIGHTS, AT THE HIGHEST POINT OF THE HIGHEST KNOLL THEREOF, ON THE PRIVATE PROPERTY OF CHAS. H. LA COSTE, KNOWN AS LOT 4 BLOCK 11, VALLEJO HEIGHTS SUBDIVISION, LOCATED 0.95 METERS N OF THE N.E. CORNER OF HIS DWELLING PORCH AND 10.90 METERS N.E. OF THE N.W. CORNER OF DWELLING, AND ABOUT 4.12 METERS S.E. OF N.W. FENCE OF LOT. REFERENCE MARK NO. 1 IS 0.34 METERS S OF SAID FENCE. ROAD FORMERLY NEAR REFERENCE MARK NO. 2 NO LONGER EXISTS. THE STATION IS REACHED OVER PAVED STREETS BEGINNING AT SONOMA AND GEORGIA STREETS IN CENTRAL BUSINESS DISTRICT, THENE N. ON SONOMA ST. 14 BLOCKS TO MISSISSIPPI ST., THENCE W. ON MISSISSIPPI ST. 2 BLOCKS TO SACRAMENTO ST, THENCE ABOUT 50 FT. N. ON SACRAMENTO ST. TO COUGHLAN ST. THENCE W. 4 BLOCKS ON COUGHLAN ST. TO SHEVELAND PARK DRIVE, THENCE N.W. ALONG SHEVELAND PARK DRIVE AND HARRIER AVE. LESS THAN 1 LONG BLOCK AND STOP. WALK LEFT 150 FEET ON TO PRIVATE PROPERTY.
01/01/1941 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1941 (WDP) STATION IS NOW VERY CLOSE TO THE EAST FACE OF A DWELLING BELONGING TO C.H. LA COSTE. IN ORDER TO OCCUPY THE STATION A 15 FOOT STAND WOULD BE NECESSARY. THE STATION IS EAST OF A SMALL RESERVOIR, AND ABOUT 50 METERS S.E. OF BURNHAM STREET BETWEEN HARRIER STREET AND BAXTER STREET REFERENCE MARK NO. 2, WHICH IS IN AN OPEN FIELD SEES THE AREA TO THE WEST.
01/01/1959 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION MARK AND REFERENCE MARK NUMBER 1 WERE RECOVERED IN GOOD CONDITON AND THE 1938 DESCRIPTION IS ADEQUATE. REFERENCE MARK NUMBER 2 WAS NOT FOUND. THE EAST SIDE OF A HOUSE IS NOW BUILT FLUSH WITH THE WEST SIDE OF THE STATION MARK AND THE EAVES OVERHANG THE MARK MAKING DIRECT USE OF THE STATION DIFFICULT.
01/01/1989 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1989 (PCL) MARK NOT FOUND.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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