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Details for Benchmark: HS3098

N 37° 20.200 W 121° 52.083 (NAD 83)

Altitude: 103.3

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

Location:
In SANTA CLARA county, CA View Original Datasheet
Designation:
V 323
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

Must Read!

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Beautiful benchmark bridge! This one's pretty scuffed up, but still legible.

[Photos:]
photoV 323
photoSetting for all four on the bridge

Nice to have a "4-fer."

[Photos:]
photoHS3098

Found this while admiring the bridge.

Third of 6 we were looking for today.

This was #1 of 6 benchmarks for the day. This bridge was like finding a gold mine.
Merry Christmas!

[Photos:]
photoV 323
photoNearby Tilework

After finding the new nearby geocache, I then found the 4 benchmarks too! Very fun 5-4-1! 50sumtin

Just a few feet further down the bridge. I wonder why so many?

[Photos:]
photoMy visit
photoNearby tilework

Out for a walk with my husband. Wow, this is amazing, four benchmarks on the same bridge.

[Photos:]
photoHS3098
photovicinity of HS3098

Another letter in the alphabet here...

[Photos:]
photoHS3098

As I stated in the log for HS3095: Wooo hooo! Four benchmarks on a single bridge! Found them all.

[Photos:]
photoHS3098.JPG
photoHS3098 Location.JPG

HS3095, HS3096, HS3097, and HS3098 are four benchmarks all on the same side of the bridge on William Street near 18th Street. This cement guardrail and the disks are over 71 years old and are in excellent condition. This one is on the south end of the bridge.

[Photos:]
photoV323 vicinity
Four benchmarks are in the top of the guardrail on the right (east) side of this bridge.
photoV323 disk - San Jose, California

Got the BM, not the cache.

Found looking for bill's dental

Found this one as its close to Bills Dental Cache.

Found it while looking for Bill's Dental Work cache nearby.
Very easy find.

One of the four,all on same side of the bridge.Right next to Bill's Dental Work cache.

Found it, now it's logged.

Found w/CaliFamily

Found it

Last of 5 found with CacheCreatures on a warm Sunday. Very interesting to learn about these benchmarks history.

[Photos:]
photoV323

Found with the other 3. Nice grab and go!

[Photos:]
photoHS3098

I didn't get two of the four Benchmarks the first time here. My main concern was finding Bill's Dental Work Cache. These are only a couple of miles from the house so it wasn't any problem coming back for the rest.

[Photos:]
photoV323

How nice to have four benchmarks right here for us to find (not to mention the cache).

All in a row!

Another one

Four out of four. How unusual to find so many so close. We didn't mind it took the woes off not finding the nearby cache.

Found the benchmark fine, couldn't find Bill's Dental.

[Photos:]
photoV323

Found while looking for Bill's Dental Work.

N 37° 20.210 W 121° 52.102

Fourth of four very unusual benchmarks, all placed close together on the same side of the bridge.

Found while (unsuccessfully) looking for Bill's Dental Work cache...obviously I was really close...

jta

Found this while searching for Bill's Dental Work Cache!

Found it while looking for Bill's dental work cache

found it.

Documented History (by the NGS)

1/1/1934 by CGS (MONUMENTED)
1/1/1954 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1954 AT SAN JOSE. AT SAN JOSE, ON EAST WILLIAM STREET, BETWEEN 16TH AND 18TH STREETS, AT A CONCRETE BRIDGE OVER COYOTE CREEK, IN THE TOP OF THE EAST CONCRETE GUARD RAIL, DIRECTLY OVER THE SOUTH ABUTMENT, 17.5 FEET EAST OF THE CENTER LINE OF THE STREET, 1.4 FEET SOUTH OF THE SOUTH EDGE OF A LAMP POST, AND ABOUT 4 FEET HIGHER THAN THE STREET.
1/1/1967 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 RECOVERED IN GOOD CONDITION.

Control Text

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

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