2012-03-31

GT1541 - V677 1943

Published Details for Benchmark: GT1541
N 36° 44.767
W 119° 53.900 (NAD 83)
Altitude: 259

Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: V 677
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.

Documented History (by the NGS)
01/01/1943 by CGS (MONUMENTED)

01/01/1959 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 6.2 MI W FROM FRESNO. 6.2 MILES WEST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT FRESNO, 0.18 MILE EAST OF MILEPOLE 202, AT THE CROSSING OF HAYES AVENUE, AT THE T JUNCTION OF MC KENZIE AVENUE EAST, 89 FEET WEST OF THE CENTER LINE OF HAYES AVENUE, 34.0 FEET NORTH OF THE NORTH RAIL, 16.5 FEET SOUTH OF A FENCE, 3 1/2 FEET SOUTH-SOUTHWEST OF A TELEPHONE POLE, 1.7 FEET EAST OF A WITNESS POST, ABOUT 2 FEET LOWER THAN THE TRACK, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.3 FOOT ABOVE THE GROUND.

01/01/1969 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION.

Found Details for Benchmark: GT1541
N 36° 44.776
W 119° 53.917 (WGS 84)
Altitude: 252

Found USC&GS mark stamped 'V677 1943' at 13:05, 31 March 2012 as described and in good condition. Go to description is adequate. The mark was found painted white with a blue cloth aerial target fastened to the ground around the mark. Also, the wood witness post had survey flagging tied to it and there was other survey evidence nearby. Decomposition of the flagging, paint, & target would probably put the use of this mark by the survey crew around October-December of 2011.

Published NAD83 coordinates are located about 100 feet southeasterly from the found WGS84 coordinates. WGS84 coordinates for the mark found by 4 minute occupation with 7 strong satellites and 2 WAAS satellites.

GT1541 "V677 1943" - Benchmark detail.
GT1541 "V677 1943" - Benchmark, GPSr, and 3'x3' flight panel.
GT1541 "V677 1943" - Benchmark, GPSr, and 3'x3' flight panel.
GT1541 "V677 1943" - Benchmark, GPSr, wood witness post, and 3'x3' flight panel.

GT2111 - PRATTON AZ MK

Published Details for Benchmark: GT2111
N 36° 45.007
W 119° 52.809 (NAD 83)
Altitude: 269

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED.

Location: In FRESNO county, CA View Original Datasheet
Designation: PRATTON AZ MK
Marker Type: azimuth mark disk
Setting: set into the top of a round concrete monument
Stability:

Documented History (by the NGS)
01/01/1972 by CADH (MONUMENTED)
DESCRIBED BY CA DIV OF HIGHWAYS 1972 (HF) TO REACH FROM FRESNO, FROM INTERSECTION STATE HIGHWAY 99 AND BELMONT AVE. GO WEST ON BELMONT 3.0 MILES TO CORNELIA AVE., TURN LEFT, SOUTH, ON CORNELIA AND GO 0.3 MILE TO STATION PRATTON ON RIGHT. TO REACH AZIMUTH MARK FROM STATION, GO NORTH 0.3 TO BELMONT AVE. AND AZIMUTH MARK IN NE CORNER INTERSECTION CORNELIA AVE. AND BELMONT AVE. STAMPED PRATTON 1972 AZIMUTH MARK. A CALIFORNIA DIVISION OF HIGHWAYS BRASS TABLET SET ON A 12 IN DIAMETER CONCRETE POST PROJECTING 3 IN. 28.5 FT NORTH OF CENTER OF BELMONT AVE. 21.5 FT EAST OF CENTER OF CORNELIA AVE. 7.0 FT WNW OF CONCRETE GAS LINE MARKER 2.5 FT EAST OF A POWER POLE

Found Details for Benchmark: GT2111

Searched for California Division of Highways (CDOH) Triangulation Station stamped "PRATTON AZ MK" at 13:00, 31 March 2012. The benchmark was not located and believed to be destroyed. The northeast corner of the intersection has been widened and the approximate location for the mark is now covered in asphalt. The mark is described as being 7 feet west-northwest of a gas line marker. A small gas utility manhole is present in the pavement. The approximate location for the mark, measured from the centerlines of the roads, is about 7 feet west-northwest, from the small manhole. No new coordinates were taken.

There is a Department of the Interior Geological Survey mark set in a canal headwall structure near the location. It is NOT the azimuth mark.

GT2111 "PRATTON Azimuth mark" - The location for this mark now lies in the street, adjacent to the gas line manhole. The mark is most likely destroyed.
GT2111 "PRATTON Azimuth mark" - The location for this mark now lies in the street, adjacent to the gas line manhole. (Identified by the GPSr.) The mark is most likely destroyed.

GT2099 - PRATTON

Published Details for Benchmark: GT2099
N 36° 44.769
W 119° 52.827 (NAD 83)
Altitude: 267.5

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED.
Location: In FRESNO county, CA View Original Datasheet
Designation: PRATTON
Marker Type: survey disk
Setting: set into the top of a round concrete monument
Stability:
Reference Points: GT2111

Documented History (by the NGS)
01/01/1972 by CADH (MONUMENTED)
DESCRIBED BY CA DIV OF HIGHWAYS 1972 (HF) PRATTON (CDH) IS LOCATED IN THE VICINITY OF BELMONT AVE. AND CORNELIA AVE. 5 MILES WEST OF DOWNTOWN FRESNO. TO REACH FROM FRESNO, FROM INTERSECTION STATE HIGHWAY 99 AND BELMONT AVE. GO WEST ON BELMONT 3.0 MILES TO CORNELIA AVE., TURN LEFT, SOUTH, ON CORNELIA AND GO 0.3 MILE TO STATION ON RIGHT. TO REACH AZIMUTH MARK FROM STATION, GO NORTH 0.3 TO BELMONT AVE. AND AZIMUTH MARK IN NE CORNER INTERSECTION CORNELIA AVE. AND BELMONT AVE. STATION-- STAMPED PRATTON 1972. A CALIFORNIA DIVISION OF HIGHWAYS BRASS TABLET SET IN A 14 IN DIAMETER CONCRETE POST PROJECTING 3 IN. SUB-SURFACE MARK IS A TABLET STAMPED AS ABOVE AND IS SET IN CONCRETE DOWN 4.0 FEET. 23.5 FEET WEST OF CENTER OF CORNELIA AVE. 32.0 FEET SOUTH OF CENTER OF A RAILROAD 7.5 FEET SW OF A TELEPHONE POLE 4.5 FEET EAST OF A STEEL WITNESS POST AZIMUTH-- STAMPED PRATTON 1972 AZIMUTH MARK. A CALIFORNIA DIVISION OF HIGHWAYS BRASS TABLET SET ON A 12 IN DIAMETER CONCRETE POST PROJECTING 3 IN. 28.5 FT NORTH OF CENTER OF BELMONT AVE. 21.5 FT EAST OF CENTER OF CORNELIA AVE. 7.0 FT WNW OF CONCRETE GAS LINE MARKER 2.5 FT EAST OF A POWER POLE R.M. 1-- STAMPED PRATTON NO. 1 1972. A CALIFORNIA DIVISION OF HIGHWAYS BRASS TABLET SET IN A 12 IN DIAMETER CONCRETE POST PROJECTING 4 IN. 19.5 FEET WEST OF CENTER OF CORNELIA AVE. 14.0 FEET NORTH OF CENTER OF A RAILROAD 3.5 FEET WSW OF A RAILROAD CROSS BUCK 43.0 FEET ESE OF A TELEGRAPH POLE R.M. 2-- STAMPED PRATTON NO. 2 1972. A CALIFORNIA DIVISION OF HIGHWAYS BRASS TABLET SET IN A CONCRETE POST 12 IN IN DIAMETER PROJECTING 3 IN. 18.5 FEET EAST OF CENTER OF CORNELIA AVE. 19.0 FEET SOUTH OF CENTER OF A RAILROAD 4.0 FEET SSE OF A RAILROAD CROSS BUCK 31.0 FEET NORTH OF A POWER POLE.

Found Details for Benchmark: GT2099
N 36° 44.769
W 119° 52.826 (WGS 84)
Altitude: 257

Found California Division of Highways (CDOH) Triangulation Station stamped 'PRATTON - 1972' at 12:40, 31 March 2012 as described and in fair condition. Go to description is adequate. The station setting seems stable, but it is set at the edge of an Almond orchard, between the the rows of trees. Its location subjects it to abuse by farm equipment. The station is readable, but the described 14 inch concrete post, now about 1 inch below grade, is chipped and scarred. The described steel witness post is missing.

Reference Monument No. 1 was found in good condition, about 42.5 feet North of, and across the railroad tracks from the Station, immediately southwest of the base of the railroad crossing signal (buck).

Reference Monument No. 2 was found in good condition, about 39.7 feet Northeast of, and across the road from the Station, immediately south of the base of the railroad crossing signal (buck). Recent utility company markings identify an 8 inch gas line adjacent to, or possibly under the Reference Monument.

The Azimuth Mark, GT2111, "PRATTON AZ MK" was searched for, but not located. It is believed to have been destroyed due to road widening. There is a Department of the Interior Geological Survey mark set in a canal headwall structure near the location for the azimuth mark. It is NOT the azimuth mark.

Published NAD83 coordinates are located about 5 feet west of the found WGS84 coordinates. WGS84 coordinates for the mark found by 4 minute occupation with 7 strong satellites and 2 WAAS satellites.

GT2099 "PRATTON 1972" - Triangulation Station detail.
GT2099 "PRATTON 1972" - Triangulation Station and GPSr. The concrete post setting is damaged, but the mark is still readable.
GT2099 "PRATTON 1972" - Triangulation Station setting. View north along Cornelia Avenue, toward Reference Monument No. 1.

FCBCM KI45


Published details for Fresno County Benchmark KI45
Township: 14
Range: 18
Section: 12
Street Location: Southeast corner of Rolinda Avenue and Whitesbridge Avenue, (State Route 180)

Alphabetical Designation: KI
Numeric Designation: 45
Designation Suffix:

Elevation: 248.443
Date: August, 1978

Monument Desc.: FCBCM  NOT STAMPED
Bench Desc.:
Data 1: 1.2 NE OF NE COR HEADWALL,  34.1 E OF C/L ROLINDA
Data 2: 35.0 S OF C/L WHITESBRIDGE,  49.3 SE OF SC
Data 3: 13.8 SE/ PP

Found details for Fresno County Benchmark KI45
Lat.: 36° 44.098'
Long.: 119° 57.646'
Elev.: 241

Notes: Found as described and in good condition.

FCBCM "KI45" - Benchmark detail.
FCBCM "KI45" - Benchmark and GPSr.
FCBCM "KI45" - Benchmark setting.