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Details for Benchmark: RD0446

N 45° 30.950 W 122° 40.617 (NAD 83)

Altitude: 58.77

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

Location:
In MULTNOMAH county, OR View Original Datasheet
Designation:
00
Marker Type:
survey disk
Setting:
pavements (street, sidewalk, curb, apron, etc.)
Stability:
Mark of questionable or unknown stability.

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Exploring Portland

[Photos:]
photoBenchmark disc
photoStatue at Benchmark

Out in Portland today!

[Photos:]
photo

Found a while ago while doing some research for a puzzle.

Out with Papa-Penguin hunting benchmarks. All photos are in his logs.

Out skateboarding around town with Penguin Tracker finding benchmarks. We found more than can be logged on geocaching.com.

[Photos:]
photoRD0446

Found this on a walk through downtown Portland this afternoon. When facing the front of the soldier the benchmark is on the platform to the right.

[Photos:]
photoRD0446 00 Benchmark
Downtown Portland park between the city police and federal building. Benchmark is on the platform to the right of the statue.
photoRD0446 00 Benchmark Site
Benchmark is on the top platform to the right of the statue.

Downtown for dinner. Stopped to get a photo. Benchmark is as described and in good condition.

[Photos:]
photoRD0446 - 00 - Location
photoRD0446 - 00 - Benchmark
photoRD0446 - 00 - Detail

Stopped by here to find this benchmark after doing some cache maintenance

Found with glorime this date, after a trip to the Multnomah County courthouse.

[Photos:]
photoRD0446_00CityofPDX

Finally came by this one today with Sally Tomato since we had to pick up some paperwork at the Court House. Yahoo!

[Photos:]
photoVeterans Memorial statue [Civil War]
photoRD0446: 00 near Portland Court House

Out with Sally Tomato today at lunch to hunt down some benchmarks. She had found a bunch on portlandmaps.com - not sure about which ones would be in geocaching.com. I did some reading up today about how benchmarks were put into the site and how they can get added (a difficult process). We found the sister marks to "00": 3485 (at Oak & Naito) and 3482 (at Pine and Naito). So we will have to come back for "00" since my sister's nickname from my grandpa was always "double zero". And - well - I love benchmark hunting.

So my long way of saying, posting this note to document the sister ones - and be able to put photos in my benchmark history here on the site. We saw a lot of things that we would have not noticed before because we were looking for benchmarks. Kind of fun.

Here is what the site has to say about marks that are not in the database [and since I do not have access to any of those databases, well..........]:

"To answer this question, you need to understand a bit about what "the database" is. The database used by Geocaching.com is a copy (from around 2000) of the database that NGS maintains. Although the NGS database has lots of marks in it, it does not have them all. In order for a mark to get into NGS's database, it has to go through a process known as "bluebooking" which ensures the disk meets the minimum requirements to be of geodetic quality (aka the highest quality possible). The NGS is not the only organization that creates and uses benchmarks and other types of control markers. In order for any mark to get "in the database" they must be "bluebooked", which can take a lot of time and effort and is often not done to save money. Remember, even though some marks might not be in the database, they are still highly important, both to businesses and to individual citizens such as your neighbors, so please treat them with respect, while enjoying the thrill of the hunt. We'll try to find other databases and add them to the site as well. If you have access to one of these databases and would like to submit it to Groundspeak, contact us."

[Photos:]
photoSister to RD0446: No 3485 [SW Oak & Naito]
photoSister to RD0446: No 3482 [SW Pine & Naito]
photoNo 3482 is REALLY in line with center of road
See how the reference markings are so much aligned with the road across the way? Amazing!

Found it on a nice Spring day.

Benchmark hunting downtown

[Photos:]
photoimage_5

Running around downtown grabbing a few benchmarks.

Downtown with Sgt Fleming.

Found this with Trailtrekn while caching downtown.

N 45° 30.966 W 122° 40.639

Find the statue and you will find the benchmark.

Found with FredFredsen during our vacation-visit-geocaching-tour in Washington State and Oregon.

found with Rotfi on our vacationtour with many other benchmarkes in Portland

Greetings from Germany

:0) TFTC :0)


"Auch Du kannst ein Fred sein!"
(Fred ist in vorliegendem Fall als generes Maskulinum anzunehmen!)


"Prolet ist ja ein guter Begriff, bezeichnet das arbeitende Volk.
Heute ist das ein Schimpfwort für jemanden, der zehn Bier ext und ´ner
Oma hinten in den Kragen kotzt." (Helge Schneider)


"Sag mir eins, Dude. Musst du eigentlich immer so viel fluchen?
Was’n das für ’ne bekackte Frage?" (The Big Lebowski )

Found while wandering around Portland finding caches in the area.

Out hunting Benchmarks in downtown Portland. This one like the statue it's mounted on is in excellent condition.

[Photos:]
photoBenchmark 00 and location
photoCity of Portland Benchmark 00

Recovered in good condition per the 1934 description. All items in the description are still correct.
It is amazing that a benchmark this old does not have any dings in it.

(Our handheld GPS could not obtain accurate coordinates because of the surrounding buildings.)

This statue is in the center of Lownsdale Square in the “Plaza Blocks”. The statue is “Soldiers’ Monument” dedicated to Oregonians killed in the Spanish-American war. The statue was dedicated in 1906. (The other square in the Plaza Blocks is Chapman square. Originally Chapman Square was designed for the exclusive use of women & children and Lownsdale Square was for gentlemen.)

[Photos:]
photoRD0446 - Disk - Portland OR
photoRD0446 - Looking approximately north.
For the photo, we placed an orange marker on top of the disk.
photoRD0446 - Looking approx. north – full height.
For the photo, we placed an orange marker on top of the disk.

This was my first benchmark. I found a couple more while visiting Portland - one that I was looking for and one that I just came across. I took some pictures and hope to add them once I am home.

Downtown today checking out marks.

[Photos:]
photoBenchmark in Portland, OR

Found while traveling on business from Pittsburgh, PA.

[Photos:]
photo00 Disc, Portland, OR
photo00 Statue, Portland, OR

The benchmark is clearly visible in the base of the Soldiers Monument.

[Photos:]
photoBenchmark Designation "00"
photoSoldiers Monument

Found in good condition as described. A generic City of Portland benchmark with a "00" designation and no date stamp.

[Photos:]
photoCloseup of benchmark.
photoSouth side of statue.
photoInscription on west side of column.

Found this one on a morning benchmark search walk. Still in good shape. Nice park, too!

[Photos:]
photord0446a.JPG
photord0446b.JPG

good shape

[Photos:]
photord0446 Portland OR
photord0446 Portland OR , Statue
photord0446, Portland OR statue

Documented History (by the NGS)

Unknown by CGS (MONUMENTED)
01/01/1934 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1934 IN PORTLAND. SET HORIZONTALLY IN THE SOLDIERS MONUMENT IN THE PLAZA BLOCK EAST OF COUNTY COURT HOUSE, IN THIRD STEP OF BASE OF MONUMENT, 16 INCHES SOUTH OF SOUTH SIDE OF COLUMN BASE.
01/01/1987 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987 RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (KRN) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (KRN) RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (KRN) RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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