National Geodetic Survey, Retrieval Date = AUGUST 2, 2022 EW7483 *********************************************************************** EW7483 DESIGNATION - RUSSELL VALLEY G 11A EW7483 PID - EW7483 EW7483 STATE/COUNTY- CA/LOS ANGELES EW7483 COUNTRY - US EW7483 USGS QUAD - POINT DUME (2018) EW7483 EW7483 *CURRENT SURVEY CONTROL EW7483 ______________________________________________________________________ EW7483* NAD 83(1992) POSITION- 34 06 29.05574(N) 118 50 40.37718(W) ADJUSTED EW7483* NAD 83(1992) EPOCH - 1991.35 EW7483* ORTHO HEIGHT - 747.1 (meters) 2451. (feet) VERTCON EW7483 ______________________________________________________________________ EW7483 GEOID HEIGHT - -35.155 (meters) GEOID18 EW7483 LAPLACE CORR - 3.02 (seconds) DEFLEC18 EW7483 HORZ ORDER - SECOND EW7483 EW7483.The horizontal coordinates were established by classical geodetic methods EW7483.and adjusted by the National Geodetic Survey in June 1996. EW7483. EW7483.The NAVD 88 height was computed by applying the VERTCON shift value to EW7483.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) EW7483 EW7483.Significant digits in the geoid height do not necessarily reflect accuracy. EW7483 EW7483.Photos may exist for this station. EW7483 EW7483.The Laplace correction was computed from DEFLEC18 derived deflections. EW7483 EW7483. The following values were computed from the NAD 83(1992) position. EW7483 EW7483; North East Units Scale Factor Converg. EW7483;SPC CA 5 - 567,778.096 1,922,077.562 MT 0.99998464 -0 28 53.1 EW7483;SPC CA 5 - 1,862,785.30 6,306,016.13 sFT 0.99998464 -0 28 53.1 EW7483;UTM 11 - 3,775,674.799 329,864.902 MT 0.99995683 -1 02 04.5 EW7483 EW7483! - Elev Factor x Scale Factor = Combined Factor EW7483!SPC CA 5 - 0.99988825 x 0.99998464 = 0.99987289 EW7483!UTM 11 - 0.99988825 x 0.99995683 = 0.99984508 EW7483 EW7483_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SLT2986475674(NAD 83) EW7483 EW7483|---------------------------------------------------------------------| EW7483| PID Reference Object Distance Geod. Az | EW7483| dddmmss.s | EW7483| CC2576 RUSSELL VALLEY G 11A RM 1 1.946 METERS 08644 | EW7483| EW7484 RUSSELL VALLEY G 11 379.581 METERS 31109 | EW7483| CC2577 RUSSELL VALLEY G 11A RM 3 1.139 METERS 35641 | EW7483|---------------------------------------------------------------------| EW7483 EW7483 SUPERSEDED SURVEY CONTROL EW7483 EW7483 NAD 83(1986)- 34 06 29.05768(N) 118 50 40.37077(W) AD(1984.00) 2 EW7483 NAD 27 - 34 06 29.03460(N) 118 50 37.03430(W) AD( ) 2 EW7483 NGVD 29 (07/19/86) 746.3 (m) 2448. (f) VERT ANG EW7483 EW7483.Superseded values are not recommended for survey control. EW7483 EW7483.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EW7483 EW7483_MARKER: DD = SURVEY DISK EW7483_SETTING: 80 = SET IN A BOULDER EW7483 EW7483 HISTORY - Date Condition Report By EW7483 HISTORY - UNK MONUMENTED CA-037 EW7483 HISTORY - 1976 GOOD CADH EW7483 EW7483 STATION DESCRIPTION EW7483 EW7483'DESCRIBED BY CA DIV OF HIGHWAYS 1976 (ARA) EW7483'THE STATION MARK AND REFERENCE MARK NO. 1 (6.38 E.) AND REFERENCE EW7483'MARK NO. 3 (3.73 N.) WERE FOUND AS DESCRIBED BY L.A. CO. ENGINEER EW7483'IN 1966. REFERENCE NO.2 (5.39 N.) HAS BEEN DESTROYED BY EW7483'VANDALISM. A NEW AND COMPLETE DESCRIPTION FOLLOWS. EW7483' EW7483'THE STATION IS LOCATED ON THE TOP OF A PROMINENT ROCK OUTCROPPING EW7483'WHICH IS 0.6 MILE EAST OF WESTLAKE BOULEVARD (STATE ROUTE 23) AND EW7483'0.3 MILE NORTH OF MULHOLLAND HIGHWAY. THE STATION MARK, REFERENCE EW7483'MARK NO. 1 AND REFERENCE MARK NO.3 ARE ALL SET IN THE SAME EW7483'CONTERMINOUS BOULDER WHICH FORMS THE TOP OF THE ROCK FORMATION. EW7483' EW7483'TO REACH THE STATION FROM THE INTERSECTION OF WESTLAKE BOULEVARD EW7483'AND THE VENTURA FREEWAY (U.S. ROUTE 101) IN THE VICINITY OF EW7483'THOUSAND OAKS, GO SOUTHWEST ON WESTLAKE BOULEVARD FOR 1.8 MILES EW7483'TO POTRERO ROAD. CONTINUE STRAIGHT, SOUTHWEST, AND GO 1.2 MILES EW7483'ALONG WESTLAKE BOULEVARD TO A FORK WITH CARLISLE ROAD. BEAR LEFT, EW7483'SOUTH, AND GO 2.1 MILES ALONG WESTLAKE BOULEVARD TO MULHOLLAND EW7483'HIGHWAY. TURN LEFT, EAST, ONTO MULHOLLAND HIGHWAY AND GO 1.5 MILES EW7483'TO A DIRT ROAD ON THE LEFT AND A MAIL BOX MARKED---BODLE 32241---. EW7483'TURN HARD LEFT, NORTHWEST, AND GO 0.45 MILE TO A DIRT ROAD EW7483'INTERSECTION. TURN LEFT, SOUTHWEST, AND GO 0.1 MILE TO A FORK. EW7483'BEAR RIGHT, NORTHWEST, AND GO 0.1 MILE TO A DIM FORK. BEAR LEFT, EW7483'NORTHWEST, AND GO 0.55 MILE TO THE END OF THE ROAD ON THE TOP OF A EW7483'RIDGE LINE AND END OF TRUCK TRAVEL. HIKE EASTERLY FOR ABOUT EW7483'150 FEET TO A LARGE ROCK WITH THE STATION ON THE TOP. EW7483' EW7483'THE STATION MARK IS A STANDARD (LAC) DISK STAMPED---RUSSELL VALLEY EW7483'G 11A 1966---SET IN A DRILL HOLE IN THE TOP OF A LARGE BOULDER AND EW7483'IS FLUSH WITH THE ROCK SURFACE. IT IS 12 FEET EAST OF THE WEST FACE EW7483'OF THE ROCK, 4 FEET SOUTH OF THE NORTH FACE AND 2 FEET LOWER THAN EW7483'THE HIGHEST POINT. EW7483' EW7483'REFERENCE MARK NO. 1 IS A BRASS TAG STAMPED---LA CO ENGR---SET IN A EW7483'LEAD PLUG FLUSH WITH THE ROCK SURFACE. IT IS 2 FEET WEST OF THE EW7483'EAST FACE OF THE ROCK, 1 FOOT SOUTH OF THE NORTH FACE AND 1 FOOT EW7483'LOWER THAN THE STATION. EW7483' EW7483'REFERENCE MARK NO. 3 IS A BRASS TAG STAMPED---LA CO ENGR---SET IN EW7483'A LEAD PLUG FLUSH WITH THE ROCK SURFACE. IT IS 6 INCHES SOUTH OF EW7483'THE NORTH FACE OF THE ROCK, 10 FEET EAST OF THE WEST FACE AND EW7483'1 FOOT LOWER THAN THE STATION.