N 235

NGS PID:
LY1226
Coordinates:
N 41.3728° W 75.128016°
Location:
Elevation:
1394.28 ft.
Type:
Survey Mark
Setting:
Bridge Wingwall
Year Established:
1959
Established By:
PA Dept. of Highways
Status:
Recovered
Condition:
Good as of April 17, 2004

Our final find for today was a challenge to photograph. I'd avoided it on previous excursions due to its proximity to rushing traffic and the fact that there's very little room to stand next to the bridge, atop the steep bank down to Blooming Grove Creek (not Egypt Creek). Today, Rich and I were ready. We parked at the Good Shepherd Church, walked to the bridge and hopped over the guard rail. Recovering the mark was easier than I'd expected, but I did need to hang onto a sign post while stretching my other arm in front of me to take a photo of the mark. This Pennsylvania Department of Highways vertical control station was found in good condition as described, with the exception of the discrepancy over the name of the creek.

A report on the condition of this survey mark has been submitted to NGS, along with the following recovery note:

Mark recovered in good condition. The bridge crosses Blooming Grove Creek, not Egypt Creek as is mentioned in the 1959 description.

PA Dept. of Highways Survey Mark N 235
PA Dept. of Highways Survey Mark N 235
Eye-level view of the mark on the wingwall.
Eye-level view of the mark on the wingwall.
Looking N along Route 402.
Looking N along Route 402.

Recovered in good condition.

This second order vertical control station is set in the top of the east wingwall for the south abutment of a concrete bridge on Rt. 402 crossing Blooming Grove Creek. The 1959 historical description leads reliably to the station. At the station a Garmin GPSmap76 receiver with remote active antenna was used to record WAAS-corrected coordinates which were 12.2 feet from the scaled coordinates listed in the NGS datasheet. The mark is well exposed, in good condition, and the stamped designation is legible.

~Rich in NEPA~

PDH Bench Mark Disk N 235
PDH Bench Mark Disk N 235
GPSr and the station mark.
GPSr and the station mark.
Eyelevel view of station mark and setting.
Eyelevel view of station mark and setting.
Orientation view, facing northwest along Rt. 402.
Orientation view, facing northwest along Rt. 402.