2002-10-27

HR0492 - FRIANT

County: MADERA
State: CALIFORNIA

PUBLISHED DATA
Lat: 37° 00.081
Long: 119° 44.064
Alt: 513
Designation: FRIANT
Marker Type: triangulation station disk
Setting: set into the top of a round concrete monument
Stability: May hold, but of type commonly subject to surface motion.

FOUND DATA
Lat: 37° 00.082
Long: 119° 44.068
Alt: NA

Found it at 08:10, 27 October 2002. Found it as described and in good condition. It was found in a 12 square monument, 8 up. The witness post was in place. This benchmark (along with HR0493 found 66' south) is on private property. The photos and GPS occupation were taken from the fenceline, about 10' west.

Original coordinates (NAD83) off by about 20 feet when in WGS84 mode. WGS84 coordinates found by 6 minute occupation with 8 strong satellites and 1 WAAS satellite.

The mark and witness post.


The mark and witness post with the GPSr at the fence.


View northerly towards the chicken ranch.


View easterly. The top of Millerton Dam can be seen in the distance.


The mark and witness post in relation to the fence and the road.


The view southeasterly. HR0492 can be seen in relation to HR0493, about 70 feet south.

HR0493 - X 690

County: MADERA
State: CALIFORNIA

PUBLISHED DATA
Lat: 37° 00.071
Long: 119° 44.059
Alt: 512.1
Designation: X 690
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.

FOUND DATA
Lat: 37° 00.071
Long: 119° 44.063
Alt: NA

Found it at 08:10, 27 October 2002. Found as described and in good condition, with the exception of the setting. It is described as being set in a round concrete monument. It was found in a 6 square monument, 12 up. The witness post was in place. This benchmark (along with HR0492 found 66' north) is on private property. The photos and GPS occupation were taken from the fenceline, about 10' west.

Original coordinates (NAD83) off by about 20 feet when in WGS84 mode. WGS84 coordinates found by 5 minute occupation with 8 strong satellites and 1 WAAS satellite.

The mark and witness post.


The mark and witness post with the GPS at the fence.


View northerly with the chicken farm in the distance.


View easterly. The mark and witness post in relation to the road. The top of Millerton Dam can be seen in the distance.


The view southeasterly. HR0493 can be seen in the distance about 70 feet south of HR0492.

HR0648 - A 691

MARK NOT FOUND

County: MADERA
State: CALIFORNIA

PUBLISHED DATA
Lat: 37° 00.633
Long: 119° 47.600
Alt: 459.6
Designation: A 691
Marker Type: bench mark disk
Setting: light structures
Stability: Mark of questionable or unknown stability.

FOUND DATA
Lat: NA
Long: NA
Alt: NA

This intersection has been rebuilt since the 1970's, and there is evidence that the box culvert has been bebuilt as well. There is no visible cap in the top of the box drain that exists on the southwest corner of the intersection, however, from a quick, ten-minute visit of the site, it cannot be determined if the cap still remains or not. It may be buried; most likely DESTROYED.

View northeast from the southwest corner. The existing concrete drainage box can be seen in the foreground. No cap exists on it.

2002-10-26

GT1715 - T 1233

County: FRESNO
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 59.433
Long: 119° 42.783
Alt: 322.8
Designation: T 1233
Marker Type: bench mark disk
Setting: massive structures
Stability: Probably hold position/elevation well.

FOUND DATA
Lat: 36° 59.494
Long: 119° 42.793
Alt: NA

Found it at 18:10, 26 October 2002. Found it as described and in good condition. Original coordinates (NAD83) off by 300 feet when in WGS84 mode. WGS84 coordinates found by 5 minute occupation with 5 strong satellites and 1 WAAS satellite. Cap is within 3 feet of the eastbound lane of Northfork Road and the vehicles are traveling very quickly. Be careful when visiting.


Benchmark detail.


The benchmark and the GPSr.


The view westerly from the east side of the San Joaquin River. The mark is set in the walkway at the end of the bridge. The remains of the old bridge can be seen in the distance.

GT2045 - FRIANT INDUSTRIAL MINERALS STK

DESTROYED

County: FRESNO
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 59.161
Long: 119° 42.764
Alt: 0
Designation: FRIANT INDUSTRIAL MINERALS STK
Marker Type: stack
Setting: setting not listed - see description
Stability:

FOUND DATA
Lat: 36° 59.179
Long: 119° 42.816
Alt: NA

This stack is long gone. Not much left of the pumice plant either. A few building foundations and nothing more. The Friant Industrial Minerals Plant has been moved to the community of Foothill, a few miles to the northwest, at the intersection on Northfork Road and Madera County Road 145.

The new WGS coordinates were taken from a location about 100'-150' westerly of the approximate stack location. About 275' westerly of the NAD 83 coordinates. 3 minute occupation; 8 satellites; 1 WAAS

Remains on the location of the industrial plant. The described stack, used as a triangulation station, is obviously gone.

2002-10-21

HR0651 - R 937

County: MADERA
State: CALIFORNIA

PUBLISHED DATA
Lat: 37° 00.617
Long: 119° 47.117
Alt: 475.7
Designation: R 937
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.

FOUND DATA
Lat: 37° 00.642
Long: 119° 47.098
Alt: NA

Found it at 18:35, 21 October 2002. Found it as described and in good condition.

Original coordinates (NAD83) off by about 180 feet when in WGS84 mode. WGS84 coordinates found by 6 minute occupation with 9 strong satellites and 1 WAAS satellite.

Benchmark detail.


The benchmark in its concrete post setting and the GPSr.


The benchmark relative to the farm gate.


The farm family name posted on the fence and described in the published description.

AC6105 - HPGN D CA 06 RG

County: MADERA
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 58.526
Long: 119° 47.626
Alt: 430
Designation: HPGN D CA 06 RG
Marker Type: survey disk
Setting: aluminum alloy rod
Stability: Probably hold position/elevation well.

FOUND DATA
Lat: 36° 58.527
Long: 119° 47.626
Alt: NA

Found it at 18:15, 21 October 2002. Found it as described and in good condition. The HPGN designation 'D CA 06 RG' was written on the witness post, but has been taped and painted over, and is difficult (almost impossible) to read.

Original coordinates (NAD83) off by only about 5 feet when in WGS84 mode. WGS84 coordinates found by 5 minute occupation with 7 strong satellites and 1 WAAS satellite.

Benchmark detail.


The benchmark in the monument well and the GPSr.


View to the southeast. The Madera Canal can be seen in the background.


View north. State Route 41 can be seen at the left and the Madera Canal to the right.

2002-10-18

GT0983 - Z 1195

County: KINGS
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 15.304
Long: 119° 49.603
Alt: 207.6
Designation: Z 1195
Marker Type: bench mark disk
Setting: light structures
Stability: Mark of questionable or unknown stability.

FOUND DATA
Lat: 36° 15.305
Long: 119° 49.604
Alt: NA

Found it at 20:35, 18 October 2002. A night-time find. Found it as described and in good condition.

WGS84 coordinates found by 4 minute occupation with 7 strong satellites and 2 WAAS satellites.

The benchmark and the GPSr.


The benchmark setting.

GT0979 - G 808

County: KINGS
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 15.333
Long: 119° 51.583
Alt: 210.8
Designation: G 808
Marker Type: bench mark disk
Setting: massive structures
Stability: Probably hold position/elevation well.

FOUND DATA
Lat: 36° 15.340
Long: 119° 51.584
Alt: NA

Found it at 20:15, 18 October 2002. A night-time find. Found it as described and in good condition.

Original coordinates (NAD83) off by about 40 feet when in WGS84 mode. WGS84 coordinates found by 4 minute occupation with 6 strong satellites and 2 WAAS satellites.


The benchmark and the GPSr.


The benchmark setting beneath the guardrail.

GT0982 - J 157 RESET

County: KINGS
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 15.317
Long: 119° 50.733
Alt: 205.9
Designation: J 157 RESET
Marker Type: bench mark disk
Setting: light structures
Stability: Mark of questionable or unknown stability.

FOUND DATA
Lat: 36° 15.321
Long: 119° 50.768
Alt: NA

Found it at 19:45, 18 October 2002. A night-time find. Found it as described and in good condition.

Original coordinates (NAD83) off by about 175 feet when in WGS84 mode. WGS84 coordinates found by 4 minute occupation with 7 strong satellites and 1 WAAS satellite.

The benchmark and GPSr.


The benchmark setting.

2002-10-11

GT1641 - J 26 A

County: FRESNO
State: CALIFORNIA

PUBLISHED DATA
Lat: 36° 48.883
Long: 119° 53.183
Alt: 305.7
Designation: J 26 A
Marker Type: survey disk
Setting: massive structures
Stability: Probably hold position/elevation well.

FOUND DATA
Lat: 36° 48.908
Long: 119° 53.209
Alt: NA

Found it at 18:00, 11 October 2002. Found it as described and in fair to poor condition. Center of cap has been vandalized, but the circumference and setting are intact.

Original coordinates (NAD83) were reasonably close when in WGS84 mode. WGS84 coordinates found by 2.5 minute occupation with 6 strong satellites and 1 WAAS satellite. Occupation would have been longer however an oncoming train prompted a hasty retreat.

Benchmark detail.


Benchmark detail.


The benchmark and the GPSr.


View easterly at the bridge. The benchmark designation 'J26A' can be seen painted on the bridge abutment. The GPSr is on top of the abutment, near the cap.


View northerly at the bridge. The benchmark designation 'J26A' can be seen painted on the bridge abutment. The GPSr is on top of the abutment, near the cap.


The on-coming train - Union Pacific Railroad #2541