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Details for Benchmark: SY3637

N 47° 35.294 W 122° 08.785 (NAD 83)

Altitude: 424.7

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

Location:
In KING county, WA View Original Datasheet
Designation:
PHANTOM
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Out on a walk at lunch and found some benchmarks. As described in the datasheet.

[Photos:]
photo

Found it.

Coordinates were spot on and the station easily located. The witness post is in place, if a little worse for wear. Disk is in good shape. It is no longer underground; the concrete holding the station projects 3-4 inches above the ground surface.

[Photos:]
photoSY3637, Bellevue WA

Documented History (by the NGS)

01/01/1937 by WAGS (MONUMENTED)
DESCRIBED BY WASHINGTON GEODETIC SURVEY 1937 STATION IS LOCATED ABOUT 1 MILE SW OF PHANTOM LAKE ON THE PROPERTY OF JOHN DUNN, WHICH STRADDLES THE RIDGE RUNNING N AND S JUST OFF THE ROAD. STATION IS 87.7 FEET S FROM THE SW CORNER OF THE CHICKEN HOUSE, AND 182.48 FEET S OF DUNNS HOUSE. STATION LIES APPROXIMATELY 400 FEET W OF HIGHWAY, 81 FEET E OF A MAPLE TREE, AND 268.2 FEET SE OF ANOTHER MAPLE. STATION MARK IS A STANDARD STATE SURVEY DISK OF BRONZE SET IN A BOULDER AND STAMPED KING COUNTY AERIAL SURVEY. REFERENCE MARK IS SIMILAR AND PLACED S 17 DEG W (MAGNETIC) 47.58 FEET FROM THE STATION. TO REACH THE STATION FROM RENTON RUN N ALONG LAKE WASHINGTON BOULEVARD TO A POINT WHERE THE ROAD CURVES TO LEFT ACROSS MEADOW ON TRESTLE TOWARDS MERCER ISLAND FERRY. IN THE MIDDLE OF THE CURVE TURN RIGHT, RUN E 0.3 MILE PASSING UNDER RAILROAD. GO STRAIGHT AHEAD AT CROSS ROAD AND CONTINUE 0.5 MILE. TURN LEFT, RUN 0.4 MILE TO SIDE ROAD ON RIGHT, CONTINUE STRAIGHT AHEAD 0.5 MILE FARTHER. TAKE RIGHT FORK AND RUN 1 MILE ON WINDING ROAD TO CROSS ROAD. TURN RIGHT (S), RUN 0.4 MILE. SEE ROAD TO PHANTOM LAKE ON LEFT. DO NOT TAKE IT. RUN STRAIGHT AHEAD (S), 0.2 MILE TO FIRST HOUSE ON RIGHT (DUNNS). STATION IS S OF THIS HOUSE. NORTHEAST CORNER OF SEC. 10, T.24, R.5, LIES 950 FEET E OF THE STATION ON THE RIDGE ACROSS THE HIGHWAY. HEIGHT OF LIGHT ABOVE STATION MARK 1.5 METERS.
01/01/1943 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1943 (FHH) STATION RECOVERED AS DESCRIBED. IT IS 1 MILE SW OF PHANTOM LAKE, IN NW1/4 NE 1/4 NE 1/4 SEC. 10, T. 24 N., R. 5 E. STATION IS A BRONZE DISK, STAMPED PHANTOM 1936 - KING CO. AER. SUR., SET IN A BOULDER. REFERENCE MARK IS S. 19 DEG W. (TRUE) FROM STATION, DISTANT 14.456 METERS. MAPLE TREES MENTIONED IN ORIGINAL DESCRIPTION ARE GONE. STATION IS NOW EASILY REACHED FROM NEW 4-LANE HIGHWAY (U.S. HIGHWAY 10) AS FOLLOWS--AFTER CROSSING BRIDGE FROM MERCER ISLAND TO E SHORE OF LAKE WASHINGTON, GO E ON 4-LANE HIGHWAY 2.8 MILES TO INTERSECTION OF ONE HUNDRED AND THIRTY-SECOND AVENUE SE, TURN LEFT (N) AND PROCEED 0.8 MILE UPHILL ALONG WINDING ROAD TO DRIVEWAY LEADING TO STATION. MOST NE OF GROUP OF FIR TREES IS 15.85 METERS N. 65 DEG E. SHED IS 15.30 METERS N. 21 DEG E. 4-INCH FIR TREE WITH SMALL CEDAR TREE BESIDE IT IS 35.4 METERS S. 88 DEG W.
01/01/1963 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (MEW) THE STATION MARK WAS RECOVERED, BUT THE PREVIOUS DESCRIPTIONS ON PAGES 24 AND 46 OF BOOK NO. 541 ARE BADLY OUT OF DATE. THE REFERENCE MARK WAS NOT SEARCHED FOR. THE STATION IS ON THE PROPERTY OF MRS. DIEDRICH OF 14435 SE 24TH STREET, BELLEVIEW, ABOUT 1 MILE SOUTHWEST OF PHANTOM LAKE. THE STATION MARK, STAMPED PHANTOM KING CO AERIL 1936, IS A STANDARD COAST AND GEODETIC SURVEY DISK SET FLUSH WITH THE GROUND. IT IS 164 FEET SOUTH OF THE SOUTHWEST CORNER OF THE HOUSE AT 14435 SE 24 ST. AND ABOUT 20 FEET EAST OF THE PROLONGATION OF THE WEST SIDE OF THE HOUSE, 14.7 FEET SOUTH OF THE SOUTHWEST CORNER OF A 2-FOOT SQUARE CONCRETE BLOCK WHICH PROJECTS 6 INCHES, (THIS WAS AN ANTENNA FOUNDATION), 14-1/2 FEET WEST OF A SMALL TRIANGLE BLAZE ON THE WEST SIDE OF A 2-FOOT FIR TREE, 5 FEET NORTHEAST OF A SMALL DOGWOOD TREE, THE BASE OF WHICH IS SURROUNDED WITH SMALL ROCKS, 2 FEET NORTH OF A METAL WITNESS POST, AND IN A SMALL CLEARING WHERE THE GROUND HAS BEEN DUG UP. REACHED FROM THE INTERSECTION OF NE 8TH STREET AND 140TH AVE. NE, ABOUT 2 MILES EAST OF BELLEVIEW, BY GOING SOUTH ON 140 AVE. FOR 1.5 MILES (140TH AVE. CHANGES TO 145 PLACE SE WHEN THE DIRECTION CHANGES FROM SOUTH TO SOUTHEASTERLY) TO JUNCTION OF 145 PLACE SE AND SE 16TH STREET, CONTINUE SOUTHERLY 0.4 MILE TO SE 22ND STREET, CONTINUE SOUTHERLY ON 145 PLACE SE FOR 0.15 MILE TO A GRAVEL DRIVEWAY RIGHT, TURN RIGHT AND GO ABOUT 50 YARDS TO A Y, KEEP LEFT AND GO ABOUT 50 YARDS TO MRS. DIEDRICHS HOUSE AND THE STATION.
01/01/1971 by USGS (MONUMENTED)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1971 PHANTON GOOD. TREES HAVE GROWN AROUND THIS POINT IMPOSSIBLE TO SEE IN OR OUT WITHOUT A TOWER.
01/01/1972 by LOCENG (MONUMENTED)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1972 (KRG) PHANTOM EXCELLENT. DESCRIPTION REVISION. NO HOUSE EXISTS NEAR STATION. THIS AREA WAS BOUGHT BY BELLEVUE COMMUNITY COLLEGE AND MOST OF THE IMMEDIATE AREA IS NOW ASPHALT PARKING LOT. STATION 3 SOUTH OF SOUTH EDGE OF NEW PARKING LOT. TREE TO EAST WITH TRIANGLE BLAZE STILL EXISTS.
01/01/1973 by NGS (MONUMENTED)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (CLN) THE STATION MARK WAS RECOVERED, AND REINFORCED WITH CONCRETE. THE REFERENCE MARK WAS NOT FOUND. THREE NEW REFERENCE MARKS WERE ESTABLISHED. THE STATION IS ABOUT 2-1/2 MILES SOUTHEAST OF BELLEVUE, 100 YARDS SOUTHWEST OF THE INTERSECTION OF 145TH PLACE SE AND SE 24TH STREET, ON THE SOUTH SIDE OF THE BELLEVUE COMMUNITY COLLEGE PARKING LOT, 40 FEET WEST-SOUTHWEST OF A GARDEN AREA ON THE SUMMIT OF THE RIDGE, (THIS GARDEN CONTAINS 6 LARGE FIR TREES), AND 65 FEET SOUTHEAST OF A SMALLER GARDEN WHICH CONTAINS ONE 18-INCH FIR TREE, AND IN SECTION 10, T 24 N, R 5 E. THE STATION MARK, STAMPED PHANTON 1936 KING CO AERIL, IS A STANDARD DISK SET IN A BOULDER SURROUNDED WITH CONCRETE AND 4 INCHES BELOW THE SURFACE OF THE GROUND. IT IS 25 FEET WEST OF THE EAST END OF THE CURB AT THE SUMMIT OF THE HILL, 14 FEET WEST OF A BLAZE ON A 2-FOOT PINE TREE, 5.5 FEET SOUTH OF THE CURB ALONG THE SOUTH EDGE OF THE PARKING LOT AND 1.7 FEET NORTH OF A METAL WITNESS POST. REFERENCE MARK NO. 2, STAMPED PHANTOM K.C.A.S. 1936 NO 2 1973, IS A STANDARD DISK SET IN A ROUND CONCRETE POST FLUSH WITH THE GROUND, 60.5 FEET WEST OF THE EAST END OF THE CURB, 44.5 FEET EAST OF THE WEST END OF THE CURB, 10.5 FEET EAST-NORTHEAST OF AN 8-FOOT HIGH OUTDOOR LIGHT AND 6 INCHES SOUTH OF THE CURB. REFERENCE MARK NO. 3, STAMPED PHANTOM K.C.A.S. 1936 NO 3 1973, IS A STANDARD DISK SET IN THE CONCRETE CURB ALONG THE SOUTH SIDE OF THE PARKING LOT, 15.0 FEET WEST OF THE EAST END OF THE CURB. REFERENCE MARK NO. 4, STAMPED PHANTON K.C.A.S. 1936 NO 4 1973, IS A STANDARD DISK SET IN A ROUND CONCRETE POST FLUSH WITH THE GROUND, 2 INCHES LOWER THAN THE ROAD, 29 FEET WEST-NORTHWEST OF THE SOUTH END OF A TRAFFIC ISLAND, 36.8 FEET WEST-SOUTHWEST OF A LIGHT STANDARD IN THE CENTER OF THE LONG, NARROW TRAFFIC ISLAND, 15 FEET EAST OF A 20-FOOT DECLINE EAST OF THE ATHLETIC FIELD AND 6 INCHES WEST OF THE WEST EDGE OF THE BLACKTOP ROAD ALONG THE WEST SIDE OF THE PARKING AREA. TO REACH REFERENCE MARK NO. 4 FROM THE STATION, DRIVE WEST 0.1 MILE TO THE TRAFFIC ISLAND AND THE MARK AS DESCRIBED. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 2-1/2 MILES SOUTHEAST OF BELLEVUE.
01/01/1983 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1983 (GCS) KING CO. AERIL 1936 PHANTOM RECOVERED GOOD. RECOVERED AS DESCRIBED. WITNESS POST RM 2, RM 3, AND RM 4 ARE IN GOOD CONDITION. THIS IS AT BELLEVUE COMM COLL. PARKING LOT NO. 9 OVERLOOKING THE PLAYING FIELD.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (EEM) RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 1991.
  • 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 Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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