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Details for Benchmark: JT2209

N 38° 07.266 W 122° 14.517 (NAD 83)

Altitude: 154

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

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

Reference Points

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Found this today. A truck was parked on top of this mark, but was able to get a picture.

[Photos:]
photoHPIM0213.JPG
Monument

Documented History (by the NGS)

01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 (JCM) THE STATION IS LOCATED ON THE WEST SIDE OF EL CAMINO REAL AT ITS INTERSECTION WITH FARALLON DRIVE IN THE NORTHEAST PART OF VALLEJO, AIRLINE ABOUT 1-1/2 MILES NORTH-NORTHEAST OF THE CITY HALL AND 1-1/4 MILES SOUTH OF THE NORTHWEST TIP OF LAKE CHABOT. TO REACH THE STATION FROM THE POST OFFICE IN VALLEJO GO NORTH ON MARIN STREET 0.4 MILE TO AN INTERSECTION. TURN RIGHT ONTO TENNESSEE STREET AND GO EAST 0.7 MILE TO AN INTERSECTION. TURN LEFT ONTO AMADOR STREET AND GO NORTH 0.4 MILE TO A SIDE STREET ON THE RIGHT. TURN RIGHT ONTO EL CAMINO REAL AND GO NORTHEAST, NORTH, WEST, AND SOUTH 0.6 MILE TO FARALLON DRIVE AND THE STATION. THE STATION MARK IS A STANDARD DISK STAMPED FAR 1959 SET IN THE TOP OF A 6-INCH CONCRETE CYLINDER THAT IS 1 FOOT BELOW THE SURFACE OF THE STREET. IT IS SET INSIDE AND PROTECTED BY A 7-INCH CAST IRON PIPE WITH A LID INSCRIBED CITY MONUMENT AND IS 29.0 FEET SOUTHEAST OF A STREET SIGN LETTERED FARALLON DR. EL CAMINO REAL, 12 FEET WEST OF THE CENTERLINE OF EL CAMINO REAL, AND 3 FEET NORTHEAST OF THE CENTERLINE OF FARALLON DRIVE. REFERENCE MARK NUMBER 1 IS A STANDARD DISK STAMPED FAR NO 1 1959 CEMENTED IN A DRILL HOLE IN THE TOP OF THE CURB ON THE EAST SIDE OF EL CAMINO REAL. IT IS 0.3 FOOT EAST OF THE FACE OF THE CURB AND ABOUT 1 FOOT HIGHER THAN THE STATION. REFERENCE MARK NUMBER 2 IS A STANDARD DISK STAMPED FAR NO 2 1959 CEMENTED IN A DRILL HOLE IN THE TOP OF THE CURB AT THE NORTH CURVE BETWEEN THE STREETS. IT IS 13.5 FEET EAST OF THE STREET SIGN AND ABOUT 1 FOOT LOWER THAN THE STATION.
01/01/1963 by LOCENG (MONUMENTED)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1963 RECOVERED BY J.P. BERRY. STATION AND R.M.S WERE RECOVERED IN EXCELLENT CONDITION. DESCRIPTION ADEQUATE.

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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