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Details for Benchmark: TT0828

N 61° 15.867 W 149° 50.533 (NAD 83)

Altitude: 0

Coordinates may not be exact. Altitude is UNKNOWN and location is SCALED. (more info)

Location:
In county, AK View Original Datasheet
Designation:
J 20 USE
Marker Type:
survey disk
Setting:
set into the top of a metal pipe driven into the ground
Stability:
Mark of questionable or unknown stability.

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Well after loading the GPS last night I seen where this one was recently found and post some new WGS84 coordinates. They worked and would have never thought this BM would have been where I found it. I used to work at the nearby building across the road and never seen this BM. Was glad to locate it today though. It is still in very good condition

Found on Peninsula of land east of the main road and west of the north drive leading from a parking lot. Station is marked by wooden posts and an orange carsonite witness post but is easily obscured during summer. Coordinates were N 61°15.954, W 149° 50.531 with 10 Ft of variation.

[Photos:]
photoTT0828 Disk
Close up of J 20 USE, Anchorage AK
photoTT0828 Station
View of monument shrouden in snow.
photoTT0828 Area
View of wooden and orange carsonite post. Main road is visible in the background looking north.

Documented History (by the NGS)

01/01/1951 by DOD (MONUMENTED)
01/01/1961 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1961 4.3 MI NE FROM ANCHORAGE. THE MARK IS 4.3 MILES, AIR LINE, NORTHEAST OF ANCHORAGE AND ON ELMENDORF AIR FORCE BASE. IT IS 50 FEET EAST OF THE CENTERLINE OF A PAVED ROAD AND ABOUT 4 FEET HIGHER THAN THE ROAD. IT IS WELDED TO THE TOP OF A 4-INCH STEEL PIPE WHICH IS FLUSH WITH THE GROUND AND ENCLOSED BY A 6-FOOT WOODEN FENCE WHICH IS 2 FEET HIGH. NOTE-- REACHED FROM THE INTERSECTION OF FOURTH AVE. AND C ST. IN ANCHORAGE, BY GOING NORTH ON C ST. FOR 0.5 MILE TO OCEAN DOCK RD. TURN LEFT ON OCEAN DOCK RD. AND GO 0.3 MILE TO LOOP RD. TURN RIGHT AND FOLLOW LOOP RD. NORTHEAST UP HILL FOR 0.8 MILE TO GUARD GATE AT ENTRANCE TO ELMENDORF AIR FORCE BASE. (LOOP RD. NOW BECOMES JUNIPER DR.) GO EAST ON JUNIPER DR. FOR 0.4 MILE TO ELDER ST. ON LEFT. TURN LEFT AND GO NORTH FOR 25 YARDS TO LYDEN AVE. ON RIGHT. TURN RIGHT AND GO NORTHEAST ON LYDEN AVE. FOR 0.3 MILE TO OAK ST. TURN RIGHT AND GO EAST ON OAK ST. FOR 0.3 MILE TO PLUM AVE. TURN LEFT AND GO NORTH, NORTHWEST AND EAST FOR 1.85 MILES TO A FORK. TAKE THE LEFT FORK, UP HILL, AND GO NORTH FOR 1.2 MILES TO THE MARK ON THE RIGHT.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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