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Details for Benchmark: SC2198

N 46° 11.034 W 123° 58.236 (NAD 83)

Altitude: 94

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

Location:
In CLATSOP county, OR View Original Datasheet
Designation:
MIT
Marker Type:
NOS hydrographic survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Located somewhere in Ft Stevens St Park, The coordinates are more accurate then my GPSr and will put you with in feet. To find the exact location just draw an "X" across the four footings left from the old signal. Benchmark is getting beat up but you can barely make out the markings. No witness posts were found any place, not even where you leave the trail. I found the side trail after I bushwhacked up to the mark fron the asphalt bike trail.

[Photos:]
photoBenchmark "MIT"
photoBenchmark Location
photoOne of four Footings
photoView from Benchmark Location

Documented History (by the NGS)

01/01/1958 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (VRS) LOCATED 1.5 MILES SOUTHWEST OF HAMMOND IN FORT STEVENS STATE PARK, 0.7 MILES WEST OF RIDGE ROAD, 0.25 MILE NORTH OF PETER IREDALE ROAD AND APPROXIMATELY 200 FEET WEST OF A GRAVEL ROAD, UNDER THE CENTER OF A U. S. ENGINEER HYDROGRAPHIC SIGNAL WHICH IS ON A HIGH BRUSHY DUNE. THE HYDROGRAPHIC SIGNAL IS U. S. E. STATION BEACH ROAD. STATION MARK IS A STANDARD HYDROGRAPHIC DISK SET IN AN 8-INCH SQUARE CONCRETE MONUMENT PROJECTING 4 INCHES ABOVE THE GROUND. STAMPED MIT 1935. TO REACH FROM THE POST OFFICE AT HAMMOND, PROCEED WEST 0.25 MILE TO RIDGE ROAD. TURN SOUTH AND PROCEED 1.1 MILES TO SIGN FORT STEVENS STATE PARK AND PAVED ROAD WEST (PETER IREDALE ROAD). TURN RIGHT (WEST) AND PROCEED 0.65 MILE ALONG MAIN ROAD THROUGH PARK TO GRAVEL ROAD NORTH. TURN RIGHT AND PROCEED 0.3 MILE NORTH TO TRAIL ON LEFT. WALK ABOUT 200 FEET WEST ALONG TRAIL TO HYDROGRAPHIC SIGNAL AND STATION ON RIGHT.
12/04/1997 by WADECO (GOOD)
RECOVERY NOTE BY WASHINGTON DEPARTMENT OF ECOLOGY 1997 (RCD) DESCRIBED BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (RCD) . TO REACH FROM THE INTERSECTION OF PACIFIC AVENUE AND LAKE DRIVE IN HAMMOND GO SOUTH ON LAKE DRIVE 0.37 MILES (0.60 KM) TO Y INTERSECTION WITH RIDGE ROAD. PROCEED SOUTH ON RIDGE ROAD FOR 0.25 MILES (0.40 KM) TO ENTRANCE TO FORT STEVENS STATE PARK. PROCEED WEST THEN NORTHWEST ON PETER IREDALE ROAD THROUGH FLASHING STOP LIGHT AND CAMPGROUND FOR ABOUT 0.7 MILES (1.1 KM) TO A 4 BY 4 FT (1.2 M) SIGN WITH ARROWS TO BATTERY RUSSELL, THE PETER IREDALE, HAMMOND, AND WARRENTON AND A INTERSECTING ROAD ON LEFT (WHICH LEADS TO THE PARKING AREA FOR THE PETER IREDALE SHIP WRECK) . FROM THIS INTERSECTION GO SOUTHEAST (RETRACE PATH) FOR 0.1 MILE (0.2 KM) TO SMALL BRIDGE WHICH PASSES VEHICLES OVER A PAVED BIKE PATH. PARK VEHICLE AND PROCEED ON FOOT NORTHEAST AND UPHILL ON THE BIKE TRAIL FOR ABOUT 200 FT (61.0 M) TO A FORK IN THE TRAIL. TAKE THE LEFT (NORTH) FORK AND PROCEED ABOUT 250 FT (76.2 M) IN A NORTHWESTERLY DIRECTION UNTILL A SANDY TRAIL IS SEEN ON THE LEFT (NORTHWEST) SIDE OF THE BIKE TRAIL. FOLLOW THIS HIKING PATH UPHILL AND NORTH ALONG A OLD VEGETATED DUNE LINE ABOUT 425 FT (129.5 M) TILL A POWER LINE RIGHT-OF-WAY IS REACHED (POWER POLE NO. 87743 IS JUST TO LEFT OF TRAIL) . CONTINUE NORTH VIA TRAIL FOR ABOUT 1320 FT (402.3 M) OVER HILLY TERRAIN. IN THE LAST 100 FT (30.5 M) PROCEED NORTHEAST UP THE STEEP TRAIL THAT CLIMES A HIGH BRUSHY DUNE TO REACH THE STATION. THE STATION IS ON TOP OF THE HIGH BRUSH DUNE. TO REACH CONTINUE NORTH VIA TRAIL TO A FLAT WOODED AREA AND INTERSECTION WITH A SMALL WINDY TRAIL TO THE WEST. FOLLOW THIS TRAIL ABOUT 50 FT (15.2 M) TO THE WEST EDGE OF DUNE AND STATION. THE STATION IS CENTERED BETWEEN THE 1 X 1 FT (0.3 M) CEMENT FOOTINGS FOR THE OLD U.S.E. HYDROGRAPHIC SIGNAL. THE SIGNAL HAS FALLEN TO THE GROUND AND THE JUMBLE OF 4 X 4 WHITE POSTS WILL SERVE AS WITNESS POSTS (THE SOUTHWEST MOST FOOTING STILL HAS A 6 FT (1.8 M) TALL SECTION OF 4 X 4 STANDING VERTICALLY) . ENCUMBERED HIKING TIME IS 15 MINUTES. THE STATION IS STAMPED MIT 1935 AND IS 2 INCHES BELOW GRADE. NOTE THAT THE STATION IS ABOUT 60 M (196.8 FT) EAST OF PETER IREDALE ROAD AND ON THE SECOND NORTH-SOUTH TRENDING DUNE LINE (ON THE LARGEST DUNE) AND ABOUT 450 M (1476.4 FT) NNW OF THE INTERSECTION OF PETER IREDALE ROAD AND THE ROAD TO THE PETER IREDALE PARKING AREA (DESCRIBED ABOVE) . IF UNENCUMBERED AND THE WEATHER HAS BEEN DRY THIS ROUTE MAY BE PREFERABLE.
09/29/1998 by WADOE (GOOD)
RECOVERY NOTE BY WA STATE DEPT ECOLOGY 1998 (RCD) DESCRIBED BY THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (RCD) . TO REACH FROM THE INTERSECTION OF PACIFIC AVENUE AND LAKE DRIVE IN HAMMOND GO SOUTH ON LAKE DRIVE 0.37 MILES (0.60 KM) TO Y INTERSECTION WITH RIDGE ROAD. PROCEED SOUTH ON RIDGE ROAD FOR 0.25 MILES (0.40 KM) TO ENTRANCE TO FORT STEVENS STATE PARK (CAMPING ENTRANCE) . PROCEED WEST THEN NORTHWEST ON PETER IREDALE ROAD THROUGH FLASHING STOP LIGHT AND CAMPGROUND FOR ABOUT 0.7 MILES (1.1 KM) TO A 4 BY 4 FT (1.2 M) SIGN WITH ARROWS TO BATTERY RUSSELL, THE PETER IREDALE, HAMMOND, AND WARRENTON AND A INTERSECTING ROAD ON LEFT (WHICH LEADS TO THE PARKING AREA FOR THE PETER IREDALE SHIP WRECK) . FROM THIS INTERSECTION GO SOUTHEAST (RETRACE PATH) FOR 0.1 MILE (0.2 KM) TO SMALL BRIDGE WHICH PASSES VEHICLES OVER A PAVED BIKE PATH. PARK VEHICLE AND PROCEED ON FOOT NORTHEAST AND UPHILL ON THE BIKE TRAIL FOR ABOUT 200 FT (61.0 M) TO A FORK IN THE TRAIL. TAKE THE LEFT (NORTHWEST) FORK AND PROCEED ABOUT 250 FT (76.2 M) IN A NORTHWESTERLY DIRECTION UNTILL A SANDY TRAIL IS SEEN ON THE LEFT (NORTHWEST) SIDE OF THE BIKE TRAIL. FOLLOW THIS HIKING PATH UPHILL AND NORTH ALONG A OLD VEGETATED DUNE LINE ABOUT 425 FT (129.5 M) TILL A POWER LINE RIGHT-OF-WAY IS REACHED (POWER POLE NO. 87743 IS JUST TO LEFT OF TRAIL) . CONTINUE NORTH VIA TRAIL FOR ABOUT 1320 FT (402.3 M) OVER HILLY TERRAIN. IN THE LAST 100 FT (30.5 M) PROCEED NORTHEAST UP THE STEEP TRAIL THAT CLIMES A HIGH BRUSHY DUNE TO REACH THE STATION. THE STATION IS ON TOP OF THE HIGH BRUSH DUNE. TO REACH CONTINUE NORTH VIA TRAIL TO A FLAT WOODED AREA AND PLATIC ORANGE WITNESS POST. FOLLOW THE SMALL WINDY TRAIL JUST NORTH OF POST WEST ABOUT 50 FT (15.2 M) TO THE WEST EDGE OF DUNE AND STATION ON RIGHT. THE STATION IS CENTERED BETWEEN THE 1 X 1 FT (0.3 M) CEMENT FOOTINGS FOR THE OLD U.S.E. HYDROGRAPHIC SIGNAL. THE SIGNAL HAS FALLEN TO THE GROUND AND THE JUMBLE OF 4 X 4 WHITE POSTS WILL SERVE AS WITNESS POSTS (THE SOUTHWEST MOST FOOTING STILL HAS A 6 FT (1.8 M) TALL SECTION OF 4 X 4 STANDING VERTICALLY) . A ORANGE WITNESS POST IS SET 1.5 FT (0.5 M) NORTH OF THE STATION. ENCUMBERED HIKING TIME IS 25 MINUTES. THE STATION IS STAMPED MIT 1935 AND IS 2 INCHES BELOW GRADE. NOTE THAT THE STATION IS ABOUT 60 M (196.8 FT) EAST OF PETER IREDALE ROAD AND ON THE SECOND NORTH-SOUTH TRENDING DUNE LINE (ON THE LARGEST DUNE) AND ABOUT 450 M (1476.4 FT) NNW OF THE INTERSECTION OF PETER IREDALE ROAD AND THE ROAD TO THE PETER IREDALE PARKING AREA (DESCRIBED ABOVE) . IF UNENCUMBERED AND THE WEATHER HAS BEEN DRY THIS ROUTE MAY BE PREFERABLE.
04/19/1999 by WADECO (GOOD)
RECOVERY NOTE BY WASHINGTON DEPARTMENT OF ECOLOGY 1999 (RCD) RECOVERED AS DESCRIBED. ORANGE WITNESS POST SET 0.25 M (0.82 FT) NORTH OF THE STATION. ADDITIONAL WITNESS POST SET ABOUT 20 M (65.6 FT) SE OF STATION TO MARK THE TURN-OFF FROM THE MAIN TRAIL -FOLLOW NW TRENDING SMALL TAIL TO STATION.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in January 1999.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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