STATE OF TEXAS 1 CONTENTS BASE LINE DESIGNATION STATE COUNTY QUAD AMARILLO CBL (1990 REMEASURED) TEXAS POTTER N351013 FT. WORTH (1990 REMEASURED) TEXAS TARRANT N320971 HOUSTON (1990 REMEASURED) TEXAS FORT BEND N290954 LAMPASAS CBL (1990 REMEASURED) TEXAS LAMPASAS N310982 MIDLAND CBL (1990 REMEASURED) TEXAS MIDLAND N311014 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N351013 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: AMARILLO CBL TEXAS ROCKVILLE MD 20852 - JANUARY 7, 1994 PROJECT ACCESSION NUMBER: 15730 POTTER COUNTY NEAREST TOWN: AMARILLO LIST OF ADJUSTED DISTANCES (MARCH 30, 1990) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 30.480 151 30.531 150.3412 150.3412 0.3 0 30.480 430 30.383 430.2963 430.2963 0.4 0 30.480 1400 29.369 1400.3928 1400.3933 0.6 151 30.531 430 30.383 279.9551 279.9552 0.3 151 30.531 1400 29.369 1250.0517 1250.0522 0.4 430 30.383 1400 29.369 970.0966 970.0971 0.3 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE. THE REDUCED MARK TO MARK DISTANCE IS 100.OO FT. DESCRIPTION OF AMARILLO BASE LINE YEAR MEASURED: 1988 YEAR REMEASURED: 1990 CHIEF OF PARTY: LPB THIS BASE LINE IS LOCATED 15.1 KM (9.4 MI) EAST OF INTERSTATE 27, 16.0 KM (10.0 MI) EAST OF AMARILLO, 1.9 KM (1.2 MI) NORTH OF INTERSTATE 40, AT THE SOUTHEAST CORNER OF THE AMARILLO INTERNATIONAL AIRPORT AND SOUTH OF THE TEXAS STATE TECHNICAL INSTITUTE. TO REACH THE BASE LINE FROM THE JUNCTION OF INTERSTATE 40 AND INTERSTATE 27, GO EAST ON INTERSTATE 40 FOR 15.1 KM (9.4 MI) TO EXIT 80 TEXAS STATE TECHNICAL INSTITUTE, TAKE EXIT 80 TO STATE LOOP 288 JUNCTION AND TURN LEFT AND GO NORTH ON STATE LOOP 288 (B AVE) UNDER INTERSTATE 40 FOR 1.9 KM (1.2 MI) TO CAUTION LIGHT AND AN INTERSECTION, WEST NE 8TH STREET. TURN LEFT AND GO WEST ON WEST NE 8TH FOR 0.08 KM (0.05 MI) TO A METAL GATE ON THE LEFT AND THE ENTRANCE TO THE BASE LINE. TURN LEFT AND GO SOUTH THROUGH THE GATE FOR 28 METERS (92 FT) TO THE 0 METER POINT. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT AT THE NORTH END. THIS BASE LINE IS A FOUR POINT BASE CONSISTING OF THE 0, 151, 430, AND THE 1400 METER POINTS. ALL POINTS ARE SET ON A LINE WHICH RUNS PARALLEL TO STATE LOOP 288. THERE IS ALSO A 100 FOOT TAPING STATION LOCATED AT A RIGHT ANGLE AND WEST OF THE 0 METER POINT AND BASE LINE. THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "0 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 28.0 METERS (91.9 FT) SOUTH OF A METAL GATE, 36.7 METERS (120.4 FT) WEST OF A WIRE FENCE, AND 52.4 METERS (171.9 FT) WEST OF THE CENTERLINE OF STATE LOOP 288. THE 151 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "151 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 37.7 METERS (123.7 FT) WEST OF A WIRE FENCE, AND 53.6 METERS (175.9 FT) WEST OF THE CENTERLINE OF STATE LOOP 288. THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "430 1988", 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 39.7 METERS (130.2 FT) WEST OF A WIRE FENCE, AND 55.7 METERS (182.7 FT) WEST OF THE CENTERLINE OF STATE LOOP 288. THE 1400 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "1400 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 21.9 METERS (71.8 FT) WEST OF A THE 100-FOOT TAPE CALIBRATION STATION WAS REMEASURED BY EDM METHOD AND FOUND TO BE 100.00 FEET AT THIS TIME. USER NOTES: A KEY IS NEEDED TO UNLOCK THE ENTRANCE GATE, WHICH MAY BE OBTAINED FROM THE CITY ENGINEER'S OFFICE. CARE SHOULD BE TAKEN TO PLUMB OVER POINTS. ALL POINT ELEVATIONS ARE FOR BASE LINE USE ONLY. 1THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SURVEYORS ASSOCIATION, PANHANDLE CHAPTER NO. 16, AND THE CITY OF AMARILLO. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY ENGINEER, CITY OF AMARILLO, 509 EAST 7TH AVENUE, AMARILLO, TEXAS, 79186, TELEPHONE (806) 378-4227. REV. 1/7/94 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N320971 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: FORT WORTH TEXAS ROCKVILLE MD 20852 - NOVEMBER 24, 1987 PROJECT ACCESSION NUMBER: G15730 TARRANT COUNTY NEAREST TOWN FT. WORTH LIST OF ADJUSTED DISTANCES (FEBRUARY 10, 1987) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 165.020 150 162.347 149.9624 149.9862 0.0 0 165.020 800 161.235 799.9614 799.9703 0.2 0 165.020 1429 162.304 1429.0975 1429.1001 0.3 150 162.347 800 161.235 649.9989 649.9998 0.2 150 162.347 1429 162.304 1279.1349 1279.1349 0.3 800 161.235 1429 162.304 629.1359 629.1368 0.2 A TAPE CALIBRATION MONUMENT WAS SET AT 100 FOOT POINT OF THE BASE LINE. REDUCED DISTANCE IS 99.949 FT. CORRECTED 11/24/87. DESCRIPTION OF FT. WORTH BASE LINE YEAR MEASURED: 1986 CHIEF OF PARTY: MTL THIS BASE LINE IS LOCATED IN THE NORTHWEST SECTION OF FT. WORTH, ALONG THE WEST FORK OF THE TRINITY RIVER, ON THE NORTH SIDE OF THE RIVER LEVEE, BETWEEN THE RIVER AND LEVEE, ON PROPERTY OWNED BY THE CITY WATER DEPARTMENT. TO REACH THIS BASE LINE FROM THE JUNCTION OF INTERSTATES 20 AND 35W, GO WEST ON INTERSTATE 20 FOR 4.32 KM (2.7 MI) TO UNIVERSITY DRIVE. TURN RIGHT AND GO NORTH ON UNIVERSITY DRIVE FOR 3.2 KM (2.0 MI) TO A LEVEE AND A STREET ON THE RIGHT JUST BEFORE CROSSING A BRIDGE OVER THE WEST FORK OF THE TRINITY RIVER. TURN RIGHT ON ROCKWOOD PARK DRIVE AND GO NORTHERLY FOR 0.08 KM (0.05 MI) TO THE 0 METER POINT ON THE RIGHT (ROCKWOOD PARK DRIVE VEERS OFF OF UNIVERSITY DRIVE AND CIRCLES UNDER UNIVERSITY DRIVE AND GOES WEST.). THIS BASE LINE IS A WEST-EAST LINE WITH THE 0 METER POINT ON THE WEST END. IT CONSISTS OF MARKS AT THE 0, 150, 800 AND 1429 METER POINTS, PLUS A MONUMENT AT THE 100 FOOT POINT FOR TAPE CALIBRATION. ALL DISKS ARE STANDARD NGS TRIANGULATION STATION DISKS SET INTO THE TOP OF ROUND CONCRETE MONUMENTS MEASURING 30.0 CM (12.0 IN) IN DIAMETER. THE 0 METER POINT IS STAMPED "CALIBRATION BASE 0 1976" AND IS LOCATED 9.7 M (32.0 FT) EAST OF THE CENTERLINE OF ROCKWOOD PARK DRIVE, 5.5 M (18.0 FT) WEST OF THE WEST EDGE OF A CONCRETE SIDEWALK AND 0.64 M (2.1 FT) NORTH OF A METAL WITNESS POST. THE 150 METER POINT IS STAMPED "CALIBRATION BASE 150 1976" AND IS LOCATED 150.0 M (492.0 FT) EAST OF THE 0 METER POINT AND 7.8 M (26.1 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK. THE 800 METER POINT IS STAMPED "CALIBRATION BASE 800 1976" AND IS LOCATED 8.6 M (28.0 FT) NORTH OF THE CENTERLINE OF A GRAVEL ROAD, 5.3 M (17.4 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST. THE 1429 METER POINT IS STAMPED "CALIBRATION BASE 1429 1976" AND IS LOCATED 27.1 M (89.0 FT) SOUTHEAST OF A 1 METER BY 2 METER CONCRETE ACCESS PAD, 15.9 (52.0 FT) WEST OF THE CENTER OF A RAILROAD OVERPASS, 2.65 M (8.7 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST. FOR FURTHER INFORMATION CONCERNING THIS BASE LINE CONTACT MR. JOHN NALL, BOUNDRY MARK INC., 1140 WEST MAIN, ARLINGTON, TEXAS 76013, TELEPHONE NUMBER (817) 860-0165. YEAR RECOVERED: 1990 THIS BASE LINE IS LOCATED IN THE NORTHWEST SECTION OF FT. WORTH, ALONG THE WEST FORK OF THE TRINITY RIVER, ON THE NORTH SIDE OF THE RIVER LEVEE, BETWEEN THE RIVER AND LEVEE, ON PROPERTY OWNED BY THE CITY WATER DEPARTMENT. TO REACH THIS BASE LINE FROM THE JUNCTION OF INTERSTATES 30 AND 35W, GO WEST ON INTERSTATE 30 FOR 4.32 KM (2.7 MI) TO UNIVERSITY DRIVE. TURN RIGHT AND GO NORTH ON UNIVERSITY DRIVE FOR 3.2 KM (2.0 MI) TO A LEVEE AND A STREET ON THE RIGHT JUST BEFORE CROSSING A BRIDGE OVER THE WEST FORK OF THE TRINITY RIVER. TURN RIGHT ON ROCKWOOD PARK DRIVE AND GO NORTHERLY FOR 0.08 KM (0.05 MI) TO THE 0 METER POINT ON THE RIGHT (ROCKWOOD PARK DRIVE VEERS OFF OF UNIVERSITY DRIVE AND CIRCLES UNDER UNIVERSITY DRIVE AND GOES WEST.). 1THIS BASE LINE IS A WEST-EAST LINE WITH THE 0 METER POINT ON THE WEST END. IT CONSISTS OF MARKS AT THE 0, 150, 800 AND 1429 METER POINTS, PLUS A MONUMENT AT THE 100 FOOT POINT FOR TAPE CALIBRATION. ALL DISKS ARE STANDARD NGS TRIANGULATION STATION DISKS SET INTO THE TOP OF ROUND CONCRETE MONUMENTS MEASURING 30.0 CM (12.0 IN) IN DIAMETER. THE 0 METER POINT IS STAMPED "CALIBRATION BASE 0 1976" AND IS LOCATED 9.7 M (32.0 FT) EAST OF THE CENTERLINE OF ROCKWOOD PARK DRIVE, 5.5 M (18.0 FT) WEST OF THE WEST EDGE OF A CONCRETE SIDEWALK AND 0.64 M (2.1 FT) NORTH OF A METAL WITNESS POST. THE 150 METER POINT IS STAMPED "CALIBRATION BASE 150 1976" AND IS LOCATED 150.0 M (492.0 FT) EAST OF THE 0 METER POINT AND 7.8 M (26.1 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK. THE 800 METER POINT IS STAMPED "CALIBRATION BASE 800 1976" AND IS LOCATED 8.6 M (28.0 FT) NORTH OF THE CENTERLINE OF A GRAVEL ROAD, 5.3 M (17.4 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST. THE 1429 METER POINT IS STAMPED "CALIBRATION BASE 1400 1976" AND IS LOCATED 27.1 M (89.0 FT) SOUTHEAST OF A 1 METER BY 2 METER CONCRETE ACCESS PAD, 15.9 (52.0 FT) WEST OF THE CENTER OF A RAILROAD OVERPASS, 2.65 M (8.7 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST. FOR FURTHER INFORMATION CONCERNING THIS BASE LINE CONTACT MR. JOHN NALL, BOUNDRY MARK INC., 107 DIVISION CT, ARLINGTON, TEXAS 76012, TELEPHONE NUMBER (817) 860-0165. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N290954 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: HOUSTON TEXAS ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: 15730 FORT BEND COUNTY NEAREST TOWN: STAFFORD LIST OF ADJUSTED DISTANCES (MARCH 7, 1990) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 25.300 150 25.043 150.0150 150.0153 0.1 0 25.300 430 25.070 429.9860 429.9860 0.3 0 25.300 1350 26.339 1349.9974 1349.9978 0.5 150 25.043 430 25.070 279.9709 279.9709 0.3 150 25.043 1350 26.339 1199.9823 1199.9830 0.4 430 25.070 1350 26.339 920.0113 920.0122 0.3 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE. THE REDUCED MARK TO MARK DISTANCE IS 100.00 FT. THIS CALIBRATION BASE LINE WAS READJUSTED ON MARCH 7, 1990. THE ORIGINAL ADJUSTMENT (DATED JANUARY 6, 1989) WAS MADE USING INCORRECTLY CALIBRATED INVAR TAPES. DESCRIPTION OF HOUSTON BASE LINE YEAR MEASURED: 1988 CHIEF OF PARTY: MTL THE BASE LINE IS LOCATED ABOUT 16.0 KM (10.0 MI) SOUTHWEST OF HOUSTON, ABOUT 4.8 KM (3.0 MI) WEST OF SUGARLAND, ABOUT 1.3 KM (0.8 MI) WEST OF THE INTERSECTION OF US HIGHWAY 90 ALTERNATE AND STATE HIGHWAY 6, AT THE HOUSTON HULL AIRPORT. TO REACH THE BASE LINE FROM THE INTERSECTION OF US HIGHWAY 59 AND STATE HIGHWAY 6, SOUTHWEST OF HOUSTON, GO NORTHWEST ON HIGHWAY 6 FOR 3.1 KM (1.9 MI) TO THE INTERSECTION OF US HIGHWAY 90 ALTERNATE. TURN LEFT AND GO WEST ON US HIGHWAY 90 ALT FOR 1.2 KM (0.75 MI) TO A ROAD RIGHT. TURN RIGHT AND GO NORTH FOR 0.1 KM (0.05 MI) ACROSS THE RAILROAD TRACKS, AND THROUGH A PRISON GATE, TO A DIRT ROAD RIGHT. TURN RIGHT AND GO EAST FOR 0.6 KM (0.35 MI) TO A DIRT TRACK ROAD LEFT, JUST PAST THE END OF THE TAXIWAY. TURN LEFT AND GO NORTH FOR 0.1 KM (0.05 MI) TO THE 0 METER POINT ON THE LEFT. NOTE: TO REACH THE 150 AND 430 METER POINTS CONTINUE NORTH ON THE DIRT TRACK ROAD, BUT TO REACH THE 1350 POINT YOU MUST GO BACK OUT TO THE INTERSECTION OF US HIGHWAY 90 ALT AND STATE HIGHWAY 6. THEN, GO NORTH ON STATE HIGHWAY 6 FOR 1.7 KM (1.05 MI) TO THE AIRPORT ENTRANCE ON THE LEFT. TURN LEFT AND GO WEST ON ENTRANCE ROAD FOR 0.3 KM (0.2 MI) TO THE GUARD SHACK AND A NARROW PAVED ROAD LEFT. TURN LEFT AND GO SOUTH ON THE PAVED ROAD FOR 0.1 KM (0.05 MI) TO A CURVE RIGHT. FOLLOW THE CURVE TO THE RIGHT AND GO WEST FOR 0.2 KM (0.1 MI) TO A CURVE LEFT. FOLLOW THE CURVE TO THE LEFT AND GO SOUTHWEST ON THE PAVED ROAD FOR 0.4 KM (0.26 MI) TO THE 1350 METER POINT ON THE LEFT. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END. IT CONSISTS OF THE 0, 150, 430, AND 1350 METER POINTS. THERE IS ALSO A DISK SET AT 100 FEET NORTH OF THE 0 METER POINT TO BE USED FOR TAPE CALIBRATION. IT IS SET ALONG THE EAST SIDE OF THE MAIN NORTH-SOUTH TAXIWAY. ALL MARKS ARE WITNESSED BY 3 SHORT FIBERGLASS POSTS. THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 34.7 M (113.8 FT) NORTH OF THE SOUTH END OF THE TAXIWAY, 5.0 M (16.4 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD, 4.5 M (14.8 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 1.4 M (4.6 FT) EAST OF A BLUE, TAXIWAY LIGHT. THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 6.1 M (20.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD, 5.7 M (18.7 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 2.7 M (8.9 FT) EAST OF A BLUE, TAXIWAY LIGHT. THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM (12 IN) DIAMETER FLUSH WITH THE GROUND, 8.7 M (28.5 FT) SOUTHEAST OF A BLUE, TAXIWAY LIGHT, 8.0 M (26.2 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 5.8 M (19.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD. 1THE 1350 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1350 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM (12 IN) IN DIAMETER RECESSED 0.1 M (0.3 FT) BELOW THE GROUND, 15.2 M (49.9 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, 12.2 M (40.0 FT) EAST OF A BLUE, TAXIWAY LIGHT, 12.0 M (39.4 FT) SOUTH OF THE APPROXIMATE CENTER OF A DRAINAGE DITCH, AND 4.3 M (14.1 FT) EAST OF THE CENTERLINE OF AN ASPHALT ROAD. THE 100-FOOT POINT IS A STANDARD NGS CALIBRATION BASE LINE TAPING DISK STAMPED "100 FT 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 30.5 M (100 FT) NORTH OF THE 0 METER POINT, 6.0 M (19.7 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD, 4.7 M (15.4 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 4.6 M (15.1 FT) SOUTHEAST OF A BLUE, TAXIWAY LIGHT. USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. FOR PERMISSION TO ENTER THE AIRPORT GROUNDS PLEASE CONTACT DON HULL, OWNER, OR JOHN HULL, MGR, AT HOUSTON HULL AIRPORT, 12888 HWY.6, SOUTH SUGAR LAND, TEXAS, 77478. TELEPHONE (713) 491-2101. ALSO, THE PRISON FARM SOUTHWEST OF THE AIRPORT SHOULD BE INFORMED OF YOUR ACTIVITIES. CONTACT THE JESTER CENTRAL UNIT, RADIO PICKET, AT (713) 491-2146. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SOCIETY OF PROFESSIONAL SURVEYORS. FOR MORE INFORMATION PLEASE CONTACT MR. PAUL KWAN AT LANDTECH CONSULTANTS, 2627 NORTH LOOP WEST, SUITE 224, HOUSTON, TEXAS, 77008. TELEPHONE (713) 861-7068. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N310982 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: LAMPASAS CBL TEXAS ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: 15730 LAMPASAS COUNTY NEAREST TOWN: LAMPASAS LIST OF ADJUSTED DISTANCES (APRIL 4, 1990) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 352.045 150 351.924 149.9964 149.9965 0.1 0 352.045 430 353.030 429.9975 429.9987 0.5 0 352.045 1320 371.117 1319.9912 1320.1289 0.7 150 351.924 430 353.030 280.0011 280.0033 0.5 150 351.924 1320 371.117 1169.9945 1170.1519 0.7 430 353.030 1320 371.117 889.9931 890.1769 0.5 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE. THE REDUCED MARK TO MARK DISTANCE IS 99.98 FT. DESCRIPTION OF LAMPASAS BASE LINE YEAR MEASURED: 1982 YEAR REMEASURED: 1990 CHIEF OF PARTY: LPB THE BASE LINE IS LOCATED ABOUT 4.0 KM (2.5 MI) NORTH OF LAMPASAS, ALONG THE WESTERN EDGE OF THE LAMPASAS MUNICIPAL AIRPORT. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0-METER POINT ON THE SOUTH END. IT CONSISTS OF THE 0, 150, 430, AND 1320 METER POINTS WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED TO THE WEST OF THE 0-METER POINT. THE BASE LINE RUNS PARALLEL WITH THE WESTERN EDGE OF THE AIRPORT'S RUNWAY. TO REACH THE 0-METER POINT FROM THE JUNCTION OF UNITED STATES HIGHWAYS 183, 190, AND 281 ON THE NORTH SIDE OF LAMPASAS, GO NORTH ON HIGHWAY 281 FOR 2.0 KM (1.2 MI) TO THE LAMPASAS MUNICIPAL AIRPORT ENTRANCE ON THE LEFT. TURN LEFT AND GO WEST THROUGH THE ENTRANCE GATE. CONTINUE WESTERLY ON A TRACK ROAD ALONG THE FENCE LINE FOR 0.16 KM (0.1 MI) TO THE 0-METER POINT ON THE RIGHT. THE 0-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0" SET IN THE TOP OF A CONCRETE POST RECESSED 13 CM (5 IN) BELOW THE SURFACE OF THE GROUND. IT IS 77.0 M (252.6 FT) SOUTHWEST OF THE SOUTHWESTERN CORNER OF THE RUNWAY, 14.5 M (47.6 FT) WEST OF THE EXTENSION OF THE WESTERN EDGE OF THE RUNWAY, AND 1.0 M (3.3 FT) NORTHWEST OF A WITNESS POST. THE 150-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150" SET IN THE TOP OF A CONCRETE POST RECESSED 15 CM (6 IN) BELOW THE SURFACE OF THE GROUND. IT IS 14.4 M (47.2 FT) WEST OF THE WESTERN EDGE OF THE RUNWAY AND 1.0 M (3.3 FT) WEST OF A WITNESS POST. THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430" SET IN THE TOP OF A CONCRETE POST RECESSED 18 CM (7 IN) BELOW THE SURFACE OF THE GROUND. IT IS 14.8 M (48.6 FT) WEST OF THE WESTERN EDGE OF THE RUNWAY AND 1.0 M (3.3 FT) EAST OF A WITNESS POST. THE 1320-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1320" SET IN THE TOP OF A CONCRETE POST RECESSED 18 CM (7 IN) BELOW THE SURFACE OF THE GROUND. IT IS 84.5 M (277.2 FT) NORTHWEST OF THE NORTHWESTERN CORNER OF THE RUNWAY AND 1.0 M (3.3 FT) EAST OF A WITNESS POST. THE 100-FOOT TAPE CALIBRATION STATION IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "100 FT" SET IN THE TOP OF A CONCRETE POST RECESSED 15 CM (6 IN) BELOW THE SURFACE OF THE GROUND. IT IS 30.47 M (99.98 FT) WEST OF THE 0-METER POINT AND 1.2 M (3.9 FT) NORTHEAST OF A WITNESS POST. THE REDUCED MARK-TO-MARK DISTANCE IS 99.98 FT. USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. PROPER SAFETY PRECAUTIONS SHOULD BE OBSERVED WHILE WITHIN THE AIRPORT PROPERTY, AND THE AIRPORT MANAGER SHOULD BE NOTIFIED OF ALL ACTIVITIES. 1THIS CALIBRATION BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE LAMPASAS COUNTY SURVEYOR. FOR MORE INFORMATION CONTACT MR. JERRY M. GOODSON, LAMPASAS COUNTY SURVEYOR, P.O. BOX 349, LAMPASAS, TX 76550. TELEPHONE (512) 556-6885. OR CONTACT MR. ROBERT BRAME, LAMPASAS MUNICIPAL AIRPORT MANAGER, HC 03, P.O. BOX 22C, LAMPASAS, TX 76550. TELEPHONE (512) 556-6640. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N311014 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: MIDLAND CBL TEXAS ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: 15730 MIDLAND COUNTY NEAREST TOWN: MIDLAND LIST OF ADJUSTED DISTANCES (APRIL 4, 1990) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 839.871 150 839.048 150.0694 150.0717 0.1 0 839.871 430 838.262 430.1309 430.1339 0.3 0 839.871 1420 834.969 1419.9919 1420.0004 0.5 150 839.048 430 838.262 280.0615 280.0626 0.3 150 839.048 1420 834.969 1269.9225 1269.9290 0.5 430 838.262 1420 834.969 989.8610 989.8665 0.3 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE. THE REDUCED MARK TO MARK DISTANCE IS 100.00 FT. DESCRIPTION OF MIDLAND BASE LINE YEAR MEASURED: 1986 YEAR REMEASURED: 1990 CHIEF OF PARTY: LPB THE BASE LINE IS LOCATED ABOUT 54.7 KM (34.0 MI) WEST OF BIG SPRING, ABOUT 20.9 (13 MI) WEST OF STANTON, AND ABOUT 11.3 (7.0 MI) EAST OF MIDLAND. IT LIES BETWEEN A FRONTAGE ROAD AND A RAILROAD TRACK WHICH PARALLEL INTERSTATE HIGHWAY 20. THE BASE LINE IS AN EAST-WEST LINE WITH THE 0-METER POINT ON THE WEST END. IT CONSISTS OF THE 0, 150, 430, AND 1420-METER POINTS WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED ON LINE WITH AND EAST OF THE 0-METER POINT. TO REACH THE 0-METER POINT FROM THE INTERSECTION OF INTERSTATE HIGHWAY 20 AND TEXAS STATE HIGHWAY 349 ON THE SOUTH SIDE OF MIDLAND, GO EAST ON HIGHWAY 20 FOR ABOUT 10.0 KM (6.4 MI) TO THE FRONTAGE ROAD EXIT NO.143. TAKE THE EXIT AND CONTINUE STRAIGHT AHEAD ON THE FRONTAGE ROAD FOR 1.8 KM (1.1 MI) TO A STOP SIGN AT THE INTERSECTION OF TWO FRONTAGE ROADS. TURN RIGHT AND GO EAST ON THE FRONTAGE ROAD FOR 2.4 KM (1.5 MI)TO THE 0-METER POINT ON THE LEFT, ABOUT 70 METERS PAST THE INTERSECTION OF COUNTY ROAD 111 ON THE RIGHT. THE 0-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 13.1 M (43.0 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 0.8 M (2.6 FT) SOUTH OF A WITNESS POST. THE 150-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150" SET IN THE TOP OF A 56 CM (22 IN) SQUARE CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 10.2 M (33.5 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 1.2 M (3.9 FT) SOUTH OF A WITNESS POST. THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 16.7 M (54.8 FT) SOUTH OF THE SOUTH RAIL, 10.1 M (33.1 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 1.0 M (3.3 FT) SOUTH OF A WITNESS POST. THE 1420-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1420" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 17.1 M (56.1 FT) SOUTH OF THE SOUTH RAIL, 9.6 M (31.5 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 1.0 M (3.3 FT) SOUTH OF A WITNESS POST. THE 100-FOOT TAPE CALIBRATION STATION IS A STANDARD NGS CALIBRATION BASE LINE DISK (WITH +) STAMPED WITH A DIMPLE, SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 30.48 M (100.00 FT) EAST OF THE 0- METER POINT, 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 11.8 M (38.7 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 0.7 M (2.3 FT) SOUTH OF A WITNESS POST. 1USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. THIS CBL WAS ESTABLISHED IN CONJUNCTION WITH THE PERMIAN BASIN CHAPTER 10 OF THE TEXAS SURVEYORS ASSOCIATION, MIDLAND, TEXAS. FOR MORE INFORMATION CONTACT MR. STAN PIPER, P.O. BOX 60432, MIDLAND, TEXAS 79711, TELEPHONE (915) 561-9025, OR MR. HARVEY A. HANSEN, P.E., DIRECTOR OF ENGINEERING AND TRANSPORTATION, P.O. BOX 1152, MIDLAND, TEXAS 79702-1152, TELEPHONE (915) 685-7288.