National Geodetic Survey, Retrieval Date = JANUARY 4, 2005 EW7594 *********************************************************************** EW7594 DESIGNATION - WHITAKER RESET EW7594 PID - EW7594 EW7594 STATE/COUNTY- CA/LOS ANGELES EW7594 USGS QUAD - WHITAKER PEAK (1988) EW7594 EW7594 *CURRENT SURVEY CONTROL EW7594 ___________________________________________________________________ EW7594* NAD 83(1992)- 34 34 03.14932(N) 118 44 34.19350(W) ADJUSTED EW7594* NAVD 88 - 1256.1 (meters) 4121. (feet) VERTCON EW7594 ___________________________________________________________________ EW7594 EPOCH DATE - 1991.35 EW7594 LAPLACE CORR- 1.51 (seconds) DEFLEC99 EW7594 GEOID HEIGHT- -33.05 (meters) GEOID03 EW7594 EW7594 HORZ ORDER - FIRST EW7594 EW7594.The horizontal coordinates were established by classical geodetic methods EW7594.and adjusted by the National Geodetic Survey in June 1996. EW7594.The horizontal coordinates are valid at the epoch date displayed above. EW7594.The epoch date for horizontal control is a decimal equivalence EW7594.of Year/Month/Day. EW7594 EW7594.The NAVD 88 height was computed by applying the VERTCON shift value to EW7594.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) EW7594 EW7594.The Laplace correction was computed from DEFLEC99 derived deflections. EW7594 EW7594.The geoid height was determined by GEOID03. EW7594 EW7594; North East Units Scale Factor Converg. EW7594;SPC CA 5 - 618,668.452 1,931,839.015 MT 0.99992723 -0 25 24.3 EW7594;SPC CA 5 - 2,029,748.08 6,338,041.84 sFT 0.99992723 -0 25 24.3 EW7594;UTM 11 - 3,826,466.646 340,122.702 MT 0.99991506 -0 59 20.6 EW7594 EW7594! - Elev Factor x Scale Factor = Combined Factor EW7594!SPC CA 5 - 0.99980804 x 0.99992723 = 0.99973529 EW7594!UTM 11 - 0.99980804 x 0.99991506 = 0.99972312 EW7594 EW7594: Primary Azimuth Mark Grid Az EW7594:SPC CA 5 - WHITAKER AZ MK 2 033 28 55.4 EW7594:UTM 11 - WHITAKER AZ MK 2 034 02 51.7 EW7594 EW7594|---------------------------------------------------------------------| EW7594| PID Reference Object Distance Geod. Az | EW7594| dddmmss.s | EW7594| CC2100 WHITAKER AZ MK 0254732.9 | EW7594| CC2101 WHITAKER AZ MK 2 0330331.1 | EW7594| EW7597 WHITAKER AUX 2 11.445 METERS 07815 | EW7594| CC2102 WHITAKER RM 1 4.203 METERS 08111 | EW7594| CC2103 WHITAKER RM 2 5.670 METERS 13256 | EW7594| EW7595 WHITAKER A 7 A 13.652 METERS 15338 | EW7594| EW7593 WHITAKER ECC 3.411 METERS 21213 | EW7594|---------------------------------------------------------------------| EW7594 EW7594 SUPERSEDED SURVEY CONTROL EW7594 EW7594 NAD 83(1986)- 34 34 03.14939(N) 118 44 34.18901(W) AD(1984.00) 1 EW7594 NAD 27 - 34 34 03.18630(N) 118 44 30.86180(W) AD( ) 1 EW7594 NGVD 29 (07/19/86) 1255.3 (m) 4118. (f) VERT ANG EW7594 EW7594.Superseded values are not recommended for survey control. EW7594.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EW7594.See file dsdata.txt to determine how the superseded data were derived. EW7594 EW7594_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SLU4012326467(NAD 83) EW7594_MARKER: Z = SEE DESCRIPTION EW7594_SETTING: 0 = UNSPECIFIED SETTING EW7594 EW7594 HISTORY - Date Condition Report By EW7594 HISTORY - 1971 MONUMENTED NGS EW7594 HISTORY - 1973 SEE DESCRIPTION NGS EW7594 EW7594 STATION DESCRIPTION EW7594 EW7594'DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 (WLB) EW7594'WHITAKER, REFERENCE MARK 2 AND THE AZIMUTH MARK HAVE BEEN EW7594'DESTROYED. THE DRILL HOLE WHERE THE STATION MARK WAS SET EW7594'WAS STILL VISIBLE AND A NEW STATION MARK WAS RESET AT THIS TIME. EW7594'A NEW AZIMUTH MARK WAS SET BY THIS PARTY. REFERENCE MARK 1 EW7594'WAS RECOVERED IN GOOD CONDITION. THE WHITAKER PEAK LOOKOUT EW7594'TOWER MENTIONED IN THE 1941 DESCRIPTION HAS BEEN TORN DOWN EW7594'AND THE CONCRETE FOOTING FOR THE LOOKOUT TOWER STILL REMAINS. EW7594'NO NEW REFERENCE MARK WAS SET. TWO LOS ANGELES COUNTY SURVEY EW7594'MARK WAS USED AS REFERENCE MARKS AT THIS DATE. FOLLOWING IS EW7594'A COMPLETE AND NEW DESCRIPTION. EW7594' EW7594'THE STATION IS LOCATED IN THE ANGELES NATIONAL FOREST, AT EW7594'THE ABANDONED SITE OF THE WHITAKER PEAK LOOKOUT TOWER, ABOUT EW7594'16-1/2 MILES SOUTH-SOUTHEAST OF GORMAN, 9 MILES NORTHWEST OF EW7594'CASTAIC, 3 MILES WEST OF INTERSTATE HIGHWAY 5 AND 1-1/2 MILES EAST EW7594'OF THE VENTURA-LOS ANGELES COUNTY LINE. EW7594' EW7594'TO REACH THE STATION FROM THE JUNCTION OF INTERSTATE HIGHWAY 5 EW7594'AND PARKER ROAD IN CASTAIC, GO NORTH ON INTERSTATE HIGHWAY EW7594'5 FOR 7.2 MILES TO THE TEMPLIN HIGHWAY EXIT ON THE RIGHT. BEAR EW7594'RIGHT ON THE EXIT RAMP FOR 0.1 MILE, THEN TURN LEFT, CROSSUNDER EW7594'FREEWAY ON A PAVED ROAD FOR 0.2 MILE TO A T-ROAD. TURN RIGHT EW7594'AND GO NORTHWEST ON OLD INTERSTATE HIGHWAY 5 FOR 2.0 MILES TO A EW7594'SIDE ROAD LEFT AND SIGN WHITAKER PEAK ROAD. TURN SHARP LEFT, EW7594'GO SOUTH AND NORTHWEST ON A NARROW PAVED ROAD FOR 2.1 MILES TO EW7594'A FORK. (TO REACH THE AZIMUTH MARK FROM THIS POINT, BEAR EW7594'RIGHT AND GO IN A NORTHWESTERLY DIRECTION ON A BLADED ROAD EW7594'FOR 0.5 MILE TO A LARGE ROCK FORMATION ON THE RIGHT. FROM EW7594'THIS POINT, PACK NORTH ON A FOOT TRAIL FOR ABOUT 100 FEET TO EW7594'THE MARK ON THE RIGHT.) BEAR LEFT AND CONTINUE IN A EW7594'SOUTHWESTERLY DIRECTION ON THE PAVED ROAD FOR 0.55 MILE EW7594'TO THE END OF THE PAVED ROAD. CONTINUE IN A SOUTHWESTERLY EW7594'DIRECTION ON A BLADED ROAD FOR 1.9 MILES TO A FORK AND A EW7594'MICROWAVE TOWER ON THE LEFT. BEAR RIGHT AND CONTINUE SOUTHWEST EW7594'ON THE BLADED ROAD FOR 0.1 MILE TO THE TOP OF THE HILL EW7594'AND THE STATION. EW7594' EW7594'THE STATION MARK, A STANDARD DISK STAMPED WHITAKER 1941 1971, IS EW7594'CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK WHICH PROJECTS EW7594'3 INCHES ABOVE THE GROUND SURFACE. IT IS 38 FEET EAST OF EW7594'THE CENTER OF THE BLADED ROAD, 18.5 FEET NORTHWEST OF THE EW7594'SOUTHWEST CONCRETE FOOTING FOR A LOOKOUT TOWER AND 13.5 FEET EW7594'WEST OF THE NORTHWEST CONCRETE FOOTING FOR THE LOOKOUT TOWER. EW7594'(NOTE 2) EW7594' EW7594'REFERENCE MARK 1, A STANDARD DISK STAMPED WHITAKER NO 1 1941, EW7594'IS CEMENTED IN A DRILL HOLE IN THE NORTHWEST CONCRETE FOOTING FOR EW7594'THE LOOKOUT TOWER. (NOTE--DESCRIBED) EW7594' EW7594'WHITAKER ECC, A CALIFORNIA DIVISION OF HIGHWAYS DISK STAMPED EW7594'WHITAKER ECC, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING EW7594'BEDROCK WHICH PROJECTS 3 INCHES ABOVE THE GROUND SURFACE. EW7594'IT IS 47.5 FEET EAST OF THE CENTER OF THE BLADED ROAD, 23 FEET EW7594'WEST-SOUTHWEST OF THE NORTHWEST CONCRETE FOOTING AND 20.5 EW7594'FEET WEST OF THE SOUTHWEST CONCRETE FOOTING. EW7594' EW7594'WHITAKER AUX 2, IS A LOS ANGELES COUNTY ENGINEERS MARK, A EW7594'LEAD PLUG WITH CENTER PUNCH HOLE, SET IN THE CENTER OF A 2-INCH EW7594'IRON PIPE FILLED WITH CONCRETE AND SURROUNDED BY A 12-INCH SQUARE EW7594'CONCRETE MONUMENT. IT HAS THE STAMPING AROUND THE OUTER EDGE EW7594'MARK L.A. CO ENGR. AUX 2. IT IS 38.5 FEET WEST-NORTHWEST EW7594'OF THE SOUTHWEST CORNER OF A CONCRETE FOUNDATION AND 10 FEET EW7594'EAST-NORTHEAST OF THE NORTHEAST CONCRETE FOOTING. EW7594' EW7594'WHITAKER A 7 A, A LOS ANGELES COUNTY SURVEY CONTROL SYSTEM EW7594'DISK STAMPED WHITAKER A-7A 1964 LA. CO. ENGR. RE 5869, SET IN EW7594'THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT WHICH PROJECTS EW7594'3 INCHES ABOVE THE GROUND SURFACE. IT IS 7 FEET SOUTH OF THE EW7594'CENTER OF THE BLADED ROAD AND 3 FEET SOUTHEAST OF A 2-INCH EW7594'IRON PIPE WHICH PROJECTS 3 FEET ABOVE THE GROUND SURFACE. EW7594' EW7594'THE AZIMUTH MARK, A STANDARD DISK STAMPED WHITAKER 1941 AZ EW7594'MK 2 1971, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK EW7594'WHICH PROJECTS 1 INCH ABOVE THE GROUND SURFACE. IT IS 28 FEET EW7594'EAST OF THE EAST FACE OF A LARGE BOULDER. (NOTE 17A) EW7594' EW7594'HEIGHT OF LIGHT ABOVE STATION MARK 5.2 FEET. EW7594 EW7594 STATION RECOVERY (1973) EW7594 EW7594'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (ARA) EW7594'THE STATION WAS SEARCHED FOR BUT NOT RECOVERED. IT WAS EW7594'APPARENTLY DESTROYED DURING THE GRADING OF THE ROAD TO A EW7594'MICRO-WAVE STATION. EW7594' EW7594'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--9 MILES EW7594'NORTHWEST OF CASTAIC