2019-02-16

EW0940 - "T24 CADT"

Found EW0940 on 16 February 2019 at 16:51 as described and in good condition with the described witness post intact. The mark lies on the top edge of the embankment on the west side of the frontage road. This mark was set by the California Division of Highways, the predecessor to the current Caltrans.

Adjacent marks EW0941 (F1147) and EW0942 (G1147) were also located and found in good condition.  Described mark E1147 was not searched for.
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Found Details for Benchmark: EW0940
N 34° 52.835, W 117° 17.843 (NAD 83)
Altitude: 2326
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Published Details for Benchmark: EW0940
N 34° 52.817, W 118° 10.033 (NAD 83)
Altitude: 2434.6

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

Location: In KERN County, CA
Designation: T24 CADT
Marker Type: survey 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 Jan 58 by CADH (MONUMENTED)

01 Jan 73 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 1.3 MI N FROM ROSAMOND. 1.1 MILE NORTH ALONG THE SIERRA HIGHWAY FROM THE INTERSECTION OF ROSAMOND BOULEVARD AT ROSAMOND, THENCE 0.2 MILE WEST ACROSS COUNTRY, ABOUT 0.1 MILE SOUTHWEST AND ACROSS STATE HIGHWAY 14 FROM BENCH MARK E 1147, ON THE EAST SIDE OF A KNOLL, 42 FEET EAST OF THE CENTER LINE OF A DIRT ROAD, 27.0 FEET WEST OF THE CENTER LINE OF A FRONTAGE ROAD, 146.3 FEET EAST OF BENCH MARK F 1147, ABOUT 18 FEET HIGHER THAN STATE HIGHWAY 14, ABOUT 7 FEET HIGHER THAN THE FRONTAGE ROAD, 1.9 FEET WEST-SOUTHWEST OF A WITNESS POST, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND. SEC 8, T9N, R12W.

01 Jan 77 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION.

EW0940 "T-24 CADT 1958" - Benchmark detail.
EW0940 "T-24 CADT 1958" - Witness post detail.
EW0940 "T-24 CADT 1958" - Witness post and benchmark setting. View southwesterly towards EW0941.
EW0940 "T-24 CADT 1958" - Witness post and benchmark setting. View northwesterly towards EW0942.
EW0940 "T-24 CADT 1958" - Benchmark setting. View southerly along the frontage road and State Route 14 toward the town of Rosamond.
EW0940 "T-24 CADT 1958" - Benchmark setting. View easterly across the frontage road and State Route 14.
EW0940 "T-24 CADT 1958" - Benchmark setting. View northerly along the frontage road and State Route 14.

EW0942 - "G1147"

Found EW0942 on 16 February 2019 at 16:47 as described and in good condition. The described 2'x2.5' outcrop is a stand-alone boulder without distinguishing markings. There is no witness post, but fallen survey lath was found nearby.

Adjacent marks EW0940 (T 24 CADT) and EW0941 (F1147) were also located and found in good condition.
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Found Details for Benchmark: EW0942
N 34° 52.832, W 118° 10.042 (NAD 83)
Altitude: 2323
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Published Details for Benchmark: EW0942
N 34° 52.817, W 118° 10.033 (NAD 83)
Altitude: 2444.73

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

Location: In KERN County, CA
Designation: T24 CADT
Marker Type: bench mark disk
Setting: in rock outcrop
Stability: Most reliable and expected to hold position/elevation well.

Documented History (by the NGS)
01 Jan 61 by CGS (MONUMENTED)

01 Jan 73 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 1.3 MI N FROM ROSAMOND. 1.1 MILES NORTH ALONG SIERRA HIGHWAY FROM THE INTERSECTION OF ROSAMOND BOULEVARD AT ROSAMOND, THENCE 0.2 MILE WEST ACROSS COUNTRY, IN THE TOP OF A 2- BY 2 1/2-FOOT OUTCROP WHICH PROJECTS ABOUT 2 FEET ABOVE THE GROUND, 81.4 FEET NORTHEAST OF BENCH MARK F 1147, 120.0 FEET WEST OF THE CENTER LINE OF A FRONTAGE ROAD, 56.8 FEET NORTHEAST OF THE NORTHEAST FACE OF A LARGE OUTCROP WHICH PROJECTS ABOUT 15 FEET ABOVE THE GROUND, 51.7 FEET WEST OF THE CENTER LINE OF A DIRT ROAD, ABOUT 14 FEET HIGHER THAN THE FRONTAGE ROAD AND ABOUT 7 FEET HIGHER THAN THE DIRT ROAD. SEC 8, T9N, R12W.

01 Jan 77 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION.

EW0942 "G1147 1961" - Benchmark detail.
EW0942 "G1147 1961" - Benchmark setting in a 2'x2.5' outcrop, about 12" to 15" above the adjacent grade.
EW0942 "G1147 1961" - Benchmark setting. View northerly along the frontage road and State Route 14.
EW0942 "G1147 1961" - Benchmark setting. View southeasterly toward EW0940, the frontage road and State Route 14.
EW0942 "G1147 1961" - Benchmark setting. View southwesterly toward EW0941.


EW0941 - "F1147"

Found EW0941 on 16 February 2019 at 16:40 as described and in good condition with the described witness post intact. Recent surveying activities, including many pieces of flagged lath and paint on the rocks made the mark easy to find. For the record, I am NOT a fan of surveyor graffiti. Surveyors should leave little to no trace, especially in rural areas such as this.

Adjacent marks EW0940 (T 24 CADT) and EW0942 (G1147) were also located and found in good condition.
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Found Details for Benchmark: EW0941
N 34° 52.828, W 118° 10.032 (NAD 83)
Altitude: 2408
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Published Details for Benchmark: EW0941
N 34° 52.817, W 118° 10.033 (NAD 83)
Altitude: 2450.21

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

Location: In KERN County, CA
Designation: T24 CADT
Marker Type: bench mark disk
Setting: in rock outcrop
Stability: Most reliable and expected to hold position/elevation well.

Documented History (by the NGS)
01 Jan 61 by CGS (MONUMENTED)

01 Jan 73 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 1.3 MI N FROM ROSAMOND. 1.1 MILES NORTH ALONG SIERRA HIGHWAY FROM THE INTERSECTION OF ROSAMOND BOULEVARD AT ROSAMOND, THENCE 0.2 MILE WEST ACROSS COUNTRY, IN THE TOP OF A LEDGE ALONG THE SOUTH SIDE OF A LARGE OUTCROP WHICH PROJECTS ABOUT 15 FEET ABOVE THE GROUND, 168 FEET WEST OF THE CENTER LINE OF A FRONTAGE ROAD, 101.0 FEET WEST OF THE CENTER LINE OF A DIRT ROAD, 146.3 FEET WEST OF BENCH MARK T-24 (CHD), 14.4 FEET WEST OF A WITNESS POST, AND ABOUT 22 FEET HIGHER THAN THE FRONTAGE ROAD. SEC 8, T12W, R9N.

01 Jan 77 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 RECOVERED IN GOOD CONDITION.

EW0941 "F1147 1961" - Benchmark detail.
EW0941 "F1147 1961" - Benchmark setting in a large rock outcrop. Recent surveying activities made locating the mark relatively easy. I am NOT a fan of survey graffiti like this.
EW0941 "F1147 1961" - Witness post set approximately 15 feet southerly from the mark.
EW0941 "F1147 1961" - Benchmark setting. View northerly. Mark EW0942 lies northeasterly from the mark.
EW0941 "F1147 1961" - Benchmark setting.  View easterly toward EW0940, the frontage road and State Route 14.
EW0941 "F1147 1961" - Benchmark setting.  View southeasterly toward the frontage road and State Route 14.
EW0941 "F1147 1961" - Benchmark setting.  View southwesterly.