2014-11-29

November 29, 2014 - Benchmarking in Caruthers, Ca

It's not often that I am able to dedicate some time solely to Benchmark Hunting.  Often, my hunts and finds are opportunistic endeavors, or they're planned around other daily events.  Today was different.  I found myself with an empty Saturday, with nothing scheduled on the calendar.  It's literally been months since I've had an open Saturday.  I still had my Honey-Do list, yard-work, etc., but there was nothing scheduled where I had to be somewhere for something, or someone.

I had some free time.

Caruthers. Ca. is a community not far from where I live.  It's a small town about 15 miles south of Fresno, has a population around 2,500 people, and it's known for its annual Caruthers District Fair, the largest free admission fair in the State of California.  I'd been wanting to search for the marks there for nearly a decade, and had never taken the time to do it.  That happened today.

The USC&GS set multiple marks around the area in the late '50s and early '60s.  As in most cases in the small Valley towns, many of the marks are still to be found in good condition.  The marks in Caruthers were found likewise.  Some were not found, some obviously destroyed due to development and urban growth, but many were found, right where the original survey crews set them.  Pictures and reports are below.

It was a good day for benchmark hunting.


GU1161 - H 363

This mark, and GU1162 along with it, are gone as far as I can tell.  The described airport is gone and there is nothing that even indicates there was an airport here.  A look at an aerial photo of the area shows where one may have been, but the surface feature that looks as it may have been a runway is now a ponding basin.

Published details for Benchmark: GU1161
N 36° 42.750
W 120° 01.983 (NAD 83)
Altitude: 223.3
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: H 363
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)

1/1/1953 by CGS (MONUMENTED)

1/1/1959 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 2.1 MI SE FROM KERMAN. 1.0 MILE EAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT KERMAN, THENCE 0.55 MILE SOUTH ALONG GOLDEN ROD AVENUE, THENCE 0.55 MILE EAST ALONG CHURCH AVENUE, AT BLAND AIRPORT, 31 1/2 FEET SOUTH OF THE CENTER LINE OF THE AVENUE, 2.0 FEET NORTH OF THE NORTHEAST CORNER OF THE WEST ONE OF TWO SMALL HANGARS, ABOUT 1/2 FOOT HIGHER THAN THE AVENUE, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND.

Published details for Benchmark: GU1161
GU1161 was briefly searched for 12:10, 29 November 2014.

The mark was not located. The described airport no longer exists, nor do the hangers that are described. A building used for farm purposes, on the south side of Church Avenue may have been one of the hangers, however, the mark was not located near the northeast corner of that building.

No new coordinates were taken.

GU1162 - G363

Published details for Benchmark: GU1162
N 36° 42.750
W 120° 02.033 (NAD 83)
Altitude: 222.5
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: G 363
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)

1/1/1953 by CGS (MONUMENTED)


1/1/1959 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 2 MI SE FROM KERMAN. 1.0 MILE EAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT KERMAN, THENCE 0.55 MILE SOUTH ALONG GOLDEN ROD AVENUE, THENCE 0.5 MILE EAST ALONG CHURCH AVENUE, AT BLAND AIRPORT, 28 1/2 FEET SOUTH OF THE CENTER LINE OF THE AVENUE, 248.6 FEET WEST OF THE NORTHWEST CORNER OF THE WEST ONE OF TWO SMALL HANGARS, IN LINE WITH THE SOUTHWEST EDGE OF THE NORTHWEST-SOUTHEAST DIRT RUNWAY, 124.8 FEET NORTHEAST OF THE NORTHEAST CORNER OF A SMALL WHITE HOUSE, 75 1/2 FEET SOUTHEAST AND ACROSS THE AVENUE FROM A POWER POLE, 1.8 FEET SOUTH OF A WITNESS POST, ABOUT 1/2 FOOT HIGHER THAN THE AVENUE, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND.

Found details for Benchmark: GU1162
GU1162 was searched for at 12:00, 29 November 2014.

The mark was not located. The described airport, house, and hangers no longer exist, although one of the farm buildings south of the road may have been one of the hangers.

No new coordinates were taken.

GT1330 - K 1039

GT1330 was found in bad shape.  It would be classified as damaged.  The mark and its setting look to be intact, but the setting is leaning, somewhere in the neighborhood of 30° out of plumb.  The setting is immediately against a relatively new power pole.  The setting was most likely upset when the pole was replaced.  The mark is no longer suitable for survey use.
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Published details for Benchmark: GT1330
N 36° 33.483
W 119° 50.983 (NAD 83)
Altitude: 244
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: K 1039
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)
01/01/1959 by CGS (MONUMENTED)

DESCRIBED BY COAST AND GEODETIC SURVEY 1959 1.6 MI N FROM CARUTHERS. 0.1 MILE NORTHEAST ALONG TAHOE STREET FROM THE POST OFFICE AT CARUTHERS, THENCE 1.45 MILES NORTHWEST ALONG HENDERSON AVENUE, 0.35 MILE SOUTHEAST OF THE INTERSECTION OF NEBRASKA AVENUE, AT THE CROSSING OF A POWER LINE, 21 1/2 FEET NORTHEAST OF THE CENTER LINE OF THE AVENUE, 20 FEET NORTHWEST OF THE CENTER LINE OF A DRIVEWAY LEADING NORTHEAST TO A SMALL HOUSE, 1 FOOT SOUTHWEST OF A POWER POLE WITH A GUY WIRE, 1.7 FEET NORTHEAST OF A WITNESS POST, ABOUT LEVEL WITH THE AVENUE, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.3 FOOT ABOVE THE GROUND.


Published details for Benchmark: GT1330

N 36° 33.480 W 119° 51.017
GT1330 was found at 11:10, 29 November 2014.

The mark was found generally as described, but in poor condition. The mark setting is immediately adjacent to a power pole with wires going east, west, and southeast with one guy wire. The mark setting has been uprooted and is leaning. Elevation cannot be relied upon.

WGS84 coordinates found by 2 minute occupation with 8 strong satellites and 2 WAAS satellites.
GT1330 "K1039 1959" - Benchmark detail.
GT1330 "K1039 1959" - Benchmark and the GPSr.
GT1330 "K1039 1959" - Benchmark setting.  View northwesterly along Henderson Road.

GT1329 - G 1039

GT1329 was found in good condition and very stable.  About as good as it gets for being adjacent to farmland.  The nearby power pole and witness post help to protect this one.  Interestingly, another benchmark hunter found this mark in February 2010, but his pictures don't show the witness post. (View that image HERE.)
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Published details for Benchmark: GT1329
N 36° 32.800
W 119° 50.250 (NAD 83)
Altitude: 243
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: G 1039
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)
01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 0.6 MI N FROM CARUTHERS. 0.1 MILE NORTHEAST ALONG TAHOE STREET FROM THE POST OFFICE AT CARUTHERS, THENCE 0.45 MILE NORTHWEST ALONG HENDERSON AVENUE, 104 FEET NORTHWEST OF THE CENTER OF THE INTERSECTION OF MOUNTAIN VIEW AVENUE, 23 FEET SOUTHWEST OF THE CENTER LINE OF HENDERSON AVENUE, 84 FEET NORTH OF THE CENTER LINE OF MOUNTAIN VIEW AVENUE, 4.2 FEET SOUTH OF A 4-BY 4-INCH WOODEN POST SUPPORTING A MILEAGE SIGN, 1 FOOT NORTHWEST OF A TELEPHONE POLE, 1.7 FEET SOUTHWEST OF A WITNESS POST, ABOUT LEVEL WITH THE AVENUE, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.3 FOOT ABOVE THE GROUND.


Found details for Benchmark: GT1329
N 36° 32.843 W 119° 50.281
GT1329 was found at 10:50, 29 November 2014.

The mark was found generally as described and in good condition. The described call distances to the center lines of the roads are adequate, although the ties in the immediate vicinity of the mark have changed.

The mark is now 4 feet northwest of a new telephone pole, 1 foot northwest of an old metal witness post, and the 4x4 post holding a mileage sign has been moved about 150 feet north west of the mark.

WGS84 coordinates found by 3 minute occupation with 7 strong satellites and 2 WAAS satellites.

GT1329 "G1039 1959" - Benchmark detail.
GT1329 "G1039 1959" - Benchmark witness post.
GT1329 "G1039 1959" - Benchmark, witness post, and GPSr.

GT1321 - S 1036

Found GT1321 in great condition.  At least, it seemed to be in great condition.  It was stable, and in the correct general location, however, the witness post was loose; the result of farming activities, or an automobile accident.  That's not much of an issue for the mark, however.  It looked as of the adjacent power pole had possibly been relocated, though, as it was relatively new.  That was of interest to me.  The described pole was 2 feet southeast of the mark; the new one 1.5 feet east.  These measurements were from the mark to the center line of the pole.  The side of the pole was only inches from the side of the concrete monument setting.  The augers used to set power poles in the ground could easily dislodge a benchmark setting.  While GT1321 looked to be in great condition, its vertical position may have been compromised.  It would take some high precision survey equipment - higher precision than the hand held GPSr I had with me - to correctly determine if the mark was, in fact, stable.

As a benchmark hunter, I'm calling it a find.  As a surveyor, I'd be cautious.
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Published details for Benchmark: GT1321
N 36° 31.900
W 119° 50.700 (NAD 83)
Altitude: 240.1
Coordinates may not be exact. Altitude is VERTCON and location is SCALED. (more info)

Location: In FRESNO county, CA View Original Datasheet
Designation: S 1036
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)
01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 1 MI SW FROM CARUTHERS. 0.55 MILE SOUTHWEST ALONG TAHOE STREET FROM THE POST OFFICE AT CARUTHERS, THENCE 0.25 MILE WEST ALONG CLEMENCEAU AVENUE, THENCE 0.25 MILE SOUTH ALONG MARKS AVENUE, 38 FEET SOUTHWEST OF THE CENTER OF THE INTERSECTION OF KAMM AVENUE, 27 FEET WEST OF THE CENTER LINE OF MARKS AVENUE, 26 FEET SOUTH OF THE CENTER LINE OF KAMM AVENUE, 2 FEET NORTHWEST OF POWER POLE 4126, 1.1 FEET SOUTHEAST OF A POST SUPPORTING A STOP SIGN, 2.3 FEET SOUTHWEST OF A WITNESS POST, ABOUT LEVEL WITH THE AVENUES, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND.

Found details for Benchmark: GT1321
N 36° 31.955 W 119° 50.725
GT1321 was found at 10:15, 29 November 2014.

The mark was found generally as described and in good condition. Distances to the center lines of the roads are adequate, however the power pole described has been replaced, and the stop sign and witness post have been moved.

The mark was found to be 1 foot southeast of a of a wooden witness post painted white labeled "CO BM"; 9 feet southeast of a street sign with a stop sign; and 1.5 feet westerly of a relatively new power pole with overhead lines going in four cardinal directions.

WGS84 coordinates found by 4 minute occupation with 8 strong satellites and 2 WAAS satellites.
GT1321 "S1036 1959" - Benchmark detail.
GT1321 "S1036 1959" - Benchmark and GPSr.
GT1321 "S1036 1959" - Benchmark, witness post, and GPSr.

GT1320 - R669

The described location for GT1320 is very close to GT1321.  They would probably be within 15-20 feet of each other if GT1320 was still there.  It's not.  The roads are wider than they used to be and the location described from the centerlines places GT1320 under the pavement, if it remains at all.  I doubt it.
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Published details for Benchmark: GT1320
N 36° 31.900
W 119° 50.700 (NAD 83)
Altitude: 240.9
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: R 669
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)
Unknown by CGS (MONUMENTED)

01/01/1959 by NGS (MARK NOT FOUND)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 1 MI SW FROM CARUTHERS. ALONG MARKS AVENUE, 20 FEET WEST OF THE CENTER LINE OF THE ROAD, IN THE SOUTHWEST CORNER OF THE INTERSECTION OF MARKS AND KAMM AVENUES AND 2 FEET SOUTH OF STATE HIGHWAY SIGN POST. SET IN THE TOP OF A CONCRETE POST. NOTE-- THE ROAD HAS BEEN WIDENED AT THE DESCRIBED LOCATION.

Found details for Benchmark: GT1320
The location for GT1320 was visited on 29 November 2014.

This mark is described as being in the same general location as benchmark PID GT1321. It was described as being destroyed in 1959 by the NGS.

This mark is believed to be destroyed. No new coordinates were taken.

GT1323 - R 1036

This one is gone.  The school has been substantially remodeled at this location.  The described swimming pool and dressing rooms are gone and the area is now primarily used for the high school stadium.
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Published details for Benchmark: GT1323
N 36° 32.283
W 119° 50.267 (NAD 83)
Altitude: 244.3
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: R 1036
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)
01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 AT CARUTHERS. AT CARUTHERS, 0.35 MILE SOUTHWEST ALONG TAHOE STREET FROM THE POST OFFICE, AT THE CARUTHERS UNION HIGH SCHOOL SWIMMING POOL, SET VERTICALLY IN THE SOUTHEAST WALL OF A CONCRETE FOUNDATION AROUND THE POOL AND DRESSING ROOM BUILDING, 34 FEET NORTHWEST OF THE CENTER LINE OF THE STREET, 0.5 FOOT SOUTHWEST OF THE EAST CORNER OF THE FOUNDATION, AND ABOUT 1 1/2 FEET HIGHER THAN THE GROUND.

Found details for Benchmark: GT1323
GT1323 was searched for at 10:02, 29 November 2014.

This mark is believed to be destroyed. The described high school swimming pool, the wall surrounding the pool, and the changing room building have all been removed. The road has been substantially widened and no buildings are within 100 feet of the road. The location is still part of the Caruthers High School but is now occupied by the Caruthers High School Stadium.

No new coordinates were taken.

GT1322 - Q 669

I had no luck finding this one.  This is the main road through town and it looks as if it's been widened.  The mark is described as being 25 feet off the centerline of the road.  That would put it in the south-bound travel lane.
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Published details for Benchmark: GT1322
N 36° 32.267
W 119° 50.300 (NAD 83)
Altitude: 244.6
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: Q 669
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)
Unknown by CGS (MONUMENTED)

01/01/1959 by NGS (MARK NOT FOUND)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 AT CARUTHERS. ALONG ROAD TO RIVERDALE, 25 FEET NORTH OF THE CENTER LINE OF THE ROAD, 170 FEET NORTHWEST OF THE CARUTHERS GRADE SCHOOL, 150 FEET SOUTHWEST OF CARUTHERS HIGH SCHOOL AND 1 FOOT SOUTH THE HIGH SCHOOL GROUNDS FENCE. SET IN THE TOP OF A CONCRETE POST.

Found details for Benchmark: GT1322
GT1322 was searched for at 09:50, 29 November 2014.

This mark is believed to be destroyed. The road has been widened substantially and the described grade school and high school have both been removed. Both properties are still school grounds, however the location for the grade school is now used for baseball fields, and the location for the high school is now the Caruthers High School Stadium.

No new coordinates were taken.

GT1325 - P 669 RESET

GT1325 is the type of mark that is difficult to miss due to its setting.  Prominently set, knee-high in the middle of a building wall, it stands out to a surveyor.  It's doubtful that the general public, and possibly even the building owners, pay it much attention though.  The building has been painted, and the mark with it, but someone has scraped a bit of paint of the mark in an effort to correctly identify it.
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Published details for Benchmark: GT1325
N 36° 32.483
W 119° 50.017 (NAD 83)
Altitude: 247
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: P 669 RESET
Marker Type: bench mark disk
Setting: massive structures
Stability: Probably hold position/elevation well.

Documented History (by the NGS)
01/01/1962 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1962 AT CARUTHERS. AT CARUTHERS, ACROSS TAHOE STREET FROM THE POST OFFICE, AT THE INTERSECTION OF TAHOE AND OAK STREETS, SET VERTICALLY IN THE NORTHEAST BRICK WALL OF THE FIRST NATIONAL BANK BUILDING, 30.8 FEET SOUTHEAST OF THE NORTH CORNER OF THE BUILDING, 43 FEET SOUTHWEST OF THE CENTERLINE OF OAK STREET, AND 2.2 FEET ABOVE THE CONCRETE SIDEWALK.

Found details for Benchmark: GT1325
GT1325 was found at 09:40, 29 November 2014.

The mark was found as described and in good condition. The building is no longer a bank, but is now the Adventist Health Community Care Center. The mark had been painted over when the building was painted, but a portion of the paint had previously been scraped off of the mark so the stamped designation can be read.

WGS84 coordinates found by 2 minute occupation with 6 strong satellites and 1 WAAS satellite.

GT1325 "P669 RESET" - Benchmark detail.
GT1325 "P669 RESET" - Benchmark and GPSr.
GT1325 "P669 RESET" - Benchmark set in the building wall.

GT1327 - H1039

I wasn't particularly expecting to find GT1327 as it has a previous "no find" on it nearly 12 years earlier, but it was at a logical place in town to start my searching for the day.  I looked diligently, but could tell that the road had been widened substantially since the 1959 benchmark description.  It could still be there, under the pavement, but I seriously doubt it.
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Published details for Benchmark: GT1327
N 36° 32.550
W 119° 49.933 (NAD 83)
Altitude: 246.2
Coordinates may not be exact. Altitude is VERTCON and location is SCALED.

Location: In FRESNO county, CA View Original Datasheet
Designation: H 1039
Marker Type: rivet
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)

Unknown by CA-019 (MONUMENTED)


01/01/1959 by NGS (GOOD)

DESCRIBED BY NATIONAL GEODETIC SURVEY 1959 AT CARUTHERS. AT CARUTHERS, 0.1 MILE NORTHEAST ALONG TAHOE STREET FROM THE POST OFFICE, AT THE INTERSECTION OF HENDERSON AVENUE, 29 FEET SOUTHEAST OF THE CENTER LINE OF TAHOE STREET, 29 FEET NORTHEAST OF THE CENTER LINE OF HENDERSON AVENUE, 3 FEET NORTHEAST OF POWER POLE 6 SUPPORTING A STREET LIGHT, ABOUT LEVEL WITH THE AVENUE, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND.

Found details for Benchmark: GT1327
GT1327 was searched for at 09:25, 29 November 2014.
The mark is believed to be destroyed. The intersection and both streets have been widened, and the described position for the mark is now under pavement. A bank building now resides on the corner.

No new coordinates were taken.

GT1327 "P669 RESET" - Benchmark location.  View easterly across the Tahoe Street & Henderson Road intersection.  The intersection has been widened substantially since the 1959 benchmark description.
GT1327 "P669 RESET" - Benchmark location.  View northwest up Henderson Road, across Tahoe Street.
GT1327 "P669 RESET" - Benchmark location.  View southwesterly along Tahoe Street, across Henderson Road.