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Details for Benchmark: AX0410

N 29° 25.317 W 096° 04.500 (NAD 83)

Altitude: 110

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

Location:
In WHARTON county, TX View Original Datasheet
Designation:
M 813
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Bench mark is in good condition.
My Handheld GPS showed N29 25.352 W96 04.534

[Photos:]
photoAX0410 M 813 Close view
photoAX0410 M 813 View to North
photoAX0410 M 813 View to South
photoBM & GPS

Located on a whirlwind caching day.

[Photos:]
photodisk
photoscene

Found in good condition.

[Photos:]
photoDisk Closeup
photoDisk Area

Documented History (by the NGS)

1/1/1943 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1943 7.95 MI S FROM EAST BERNARD. TO REACH FROM THE CROSSING OF U.S. HIGHWAY NO.90-A AND STATE HIGHWAY NO.60 AT EAST BERNARD, PROCEED 7.95 MILES SOUTHERLY ALONG STATE HIGHWAY NO.60 TO THE INTERSECTION OF A SHELL ROAD LEADING EAST AND SITE OF BENCH MARK. BENCH MARK IS SET HORIZONTALLY IN THE TOP OF THE EAST END OF THE SOUTH HEADWALL OF A 2X2 FOOT CONCRETE BOX CULVERT UNDER A SHELL ROAD. IT IS 31.8 FEET EAST OF AND ABOUT THE SAME ELEVATION AS THE CENTERLINE OF THE HIGHWAY, 12.4 FEET SOUTH OF THE CENTERLINE OF A SHELL ROAD LEADING EAST. NOTE-- THIS BENCH MARK IS 1.35 MILE NORTH OF THE SCHOOL BUILDING AT HUNGERFORD.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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