1 National Geodetic Survey, Retrieval Date = DECEMBER 2, 2002 AE7870 *********************************************************************** AE7870 DESIGNATION - C 262 AE7870 PID - AE7870 AE7870 STATE/COUNTY- CA/SOLANO AE7870 USGS QUAD - BENICIA (1980) AE7870 AE7870 *CURRENT SURVEY CONTROL AE7870 ___________________________________________________________________ AE7870* NAD 83(1998)- 38 00 55.92819(N) 122 11 25.62004(W) ADJUSTED AE7870* NAVD 88 - 176.69 (meters) 579.7 (feet) GPS OBS AE7870 ___________________________________________________________________ AE7870 EPOCH DATE - 2000.86 AE7870 X - -2,680,447.414 (meters) COMP AE7870 Y - -4,258,052.060 (meters) COMP AE7870 Z - 3,906,891.763 (meters) COMP AE7870 LAPLACE CORR- 1.58 (seconds) DEFLEC99 AE7870 ELLIP HEIGHT- 144.66 (meters) GPS OBS AE7870 GEOID HEIGHT- -32.01 (meters) GEOID99 AE7870 AE7870 HORZ ORDER - B AE7870 ELLP ORDER - FOURTH CLASS I AE7870 AE7870.The horizontal coordinates were established by GPS observations AE7870.and adjusted by the National Geodetic Survey in November 2002. AE7870.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AE7870.DATUM ITEM on the data sheet items page. AE7870.The horizontal coordinates are valid at the epoch date displayed above. AE7870.The epoch date for horizontal control is a decimal equivalence AE7870.of Year/Month/Day. AE7870 AE7870.The orthometric height was determined by GPS observations and a AE7870.high-resolution geoid model using precise GPS observation and AE7870.processing techniques. AE7870 AE7870.The X, Y, and Z were computed from the position and the ellipsoidal ht. AE7870 AE7870.The Laplace correction was computed from DEFLEC99 derived deflections. AE7870 AE7870.The ellipsoidal height was determined by GPS observations AE7870.and is referenced to NAD 83. AE7870 AE7870.The geoid height was determined by GEOID99. AE7870 AE7870; North East Units Scale Converg. AE7870;SPC CA 2 - 538,745.487 1,983,274.390 MT 1.00008720 -0 07 12.3 AE7870;SPC CA 2 - 1,767,534.15 6,506,792.73 sFT 1.00008720 -0 07 12.3 AE7870;UTM 10 - 4,207,847.928 571,061.906 MT 0.99966219 +0 29 55.0 AE7870 AE7870 SUPERSEDED SURVEY CONTROL AE7870 AE7870 NAD 83(1992)- 38 00 55.92627(N) 122 11 25.61871(W) AD(1997.30) 1 AE7870 ELLIP HT - 144.60 (m) GP(1997.30) 4 1 AE7870 NAD 83(1992)- 38 00 55.92589(N) 122 11 25.61872(W) AD(1997.30) 1 AE7870 ELLIP HT - 144.70 (m) GP(1997.30) 3 2 AE7870 AE7870.Superseded values are not recommended for survey control. AE7870.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AE7870.See file dsdata.txt to determine how the superseded data were derived. AE7870 AE7870_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH7106207848(NAD 83) AE7870_MARKER: DD = SURVEY DISK AE7870_SETTING: 38 = BRIDGE DECK OVER ABUTMENT AE7870_STAMPING: C 262 AE7870_MARK LOGO: CADH AE7870_MAGNETIC: N = NO MAGNETIC MATERIAL AE7870_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL AE7870_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AE7870+SATELLITE: SATELLITE OBSERVATIONS - January 16, 2001 AE7870 AE7870 HISTORY - Date Condition Report By AE7870 HISTORY - 1997 MONUMENTED CADH AE7870 HISTORY - 20010116 GOOD FRAME AE7870 AE7870 STATION DESCRIPTION AE7870 AE7870'DESCRIBED BY CA DIV OF HIGHWAYS 1997 (KA) AE7870'THE STATION IS ABOUT 4 MI (6.4 KM) WEST OF MARTINEZ AND ABOUT 4 MI AE7870'(6.4 KM) EAST OF HERCULES AT THE CUMMINGS SKYWAY OVERPASS OVER STATE AE7870'HIGHWAY 4. NOTE, TEH EXIT SIGNS EITHER EASTBOUND OR WESTBOUND DO NOT AE7870'REFER TO CUMMINGS SKYWAY. TO REACH THE STATION FROM THE INTERSECTION AE7870'OF STATE HIGHWAY 4 AND ALHAMBRA AVENUE IN MARTINEZ, GO WEST ON HIGHWAY AE7870'4 FOR 2.9 MI (4.7 KM) TO THE CROCKETT/VALLEJO EXIT, CUMMINGS SKYWAY. AE7870'GO WEST ON THE EXIT ROAD FOR 0.25 MI (0.40 KM) TO THE INTERSECTION OF AE7870'CUMMINGS SKYWAY. TURN LEFT AND SOUTH FOR 0.05 MI (0.08 KM) TO THE AE7870'STATION ON THE RIGHT ABOUT MIDWAY ON THE OVERCROSS BRIDGE. THE AE7870'STATION IS A 2 1/2 IN CALIFORNIA DEPARTMENT OF HIGHWAYS DISK. IT IS AE7870'ABOUT 165 FT (50.3 M) NORTH OF THE SOUTHWEST END OF THE OVERPASS, 112 AE7870'FT (34.1 M) SOUTH OF THE NORTHWEST END OF THE OVERPASS, 22 FT (6.7 M) AE7870'WEST OF THE CENTERLINE OF CUMMINGS SKYWAY, AND 2.4 FT (0.7 M) WEST OF AE7870'THE FACE OF THE CURB OF THE SKYWAY. AE7870 AE7870 STATION RECOVERY (2001) AE7870 AE7870'RECOVERY NOTE BY FRAME SURVEYING AND MAPPING 2001 (JHF) AE7870'THE STATION WAS RECOVERED. THE ORIGINAL DESCRIPTION LISTS THE STATION AE7870'IN SOLANO COUNTY. IT IS IN CONTRA COSTA COUNTY. THE ORIGINAL AE7870'DESCRIPTION ALSO STATES THAT THE FROM THE ALHAMBRA INTERCHANGE IS 2.9 AE7870'MI. (4.7 KM) THE ACTUAL DISTANCE IS 3.9 MI.