Control Network Surveys in San Diego County

[torgsurv]

I'm working on compiling a list of the recorded control network surveys within the county of San Diego. If you know of any that I can add, please post the ROS number here or email me. When I've made some more progress, I'll make an excel file available to those who are interested.

ROS # SHEETS POINTS H DATUM V DATUM CITY
13928 11 124 NAD83 NGVD29 SAN MARCOS
14023 8 81 NAD83 NGVD29 VISTA
14236 17 305 NAD83 (1992) NGVD29 ESCONDIDO
14310 3 34 NAD83 (1991.35) COUNTY
14492 48 1638 NAD83 (1991.35) NAVD88 & NGVD29 SAN DIEGO
16607 1 13 NAD83 (1991.35) ENCINITAS (I-5)
16709 5 96 NAD83 NGVD29 OCEANSIDE, VISTA, SAN MARCOS, ESCONDIDO (SPRINTER)
16810 5 45 NAD83 (1999.92) COUNTY
17271 12 157 NAD83 (1999.92 & 1991.35) NAVD88 & NGVD29 CARLSBAD
18416 6 48 NAD83 (2004.0 & 1991.35) NAVD88 & NGVD29 ENCINITAS
18971 2 12 NAD83 (2004.0 & 1991.35) NAVD88 & NGVD29 SOLANA BEACH
19379 1 1 NAD83 (2004.0 & 1991.35) NAVD88 & NGVD29 ENCINITAS
20188 1 1 NAD83 (2007.0 & 1991.35) NAVD88 & NGVD29 ENCINITAS

[Steve Martin]

Hi Blake,

Dan Harrison used to keep a running list of first order Record of Surveys. You might check over at the County to see if anyone is keeping it up.

Here are some that I was involved with:

ROS 14310 HPGN
ROS 16364 La Posta Truck Trail
ROS 16442 Fallbrook to Escondido
ROS 16475 Alpine
ROS 16501 Ramona
ROS 16534 Black Canyon Road
ROS 16539 Cameron Corners
ROS 16578 Alpine Heights
ROS 16580 Casa de Oro
ROS 16552 Santee/ El Cajon
ROS 16685 Rainbow
ROS 16686 Valley Center/ Pauma
ROS 16718 Pala Mesa
ROS 16810 County wide densification
ROS 16959 El Cajon
ROS 16960 Hidden Glen
ROS 17203 Ramona
ROS 17204 Casa de Oro
ROS 17217 Lakeside
ROS 17364 Hidden Meadows
ROS 17454 Townships 15S R1E and 15S R2E
ROS 17472 Spring Valley
ROS 17601 El Cajon
ROS 17601 Jamul
ROS 17683 Fallbrook
ROS 17739 Dehesa
ROS 17756 Buckman Springs
ROS 17996 Palomar Airport
ROS 17798 Lakeside
ROS 17850 Pala
ROS 17911 Barrett Junction
ROS 17945 El Cajon
ROS 17957 Flinn Springs
ROS 17997 Pauma
ROS 18058 Wildcat Canyon Road
ROS 18107 Valley Center
ROS 18114 Dehesa
ROS 18138 Boulevard
ROS 18146 Valley Center
ROS 18251 Fallbrook
ROS 18368 Ramona Airport (some control + boundary)
ROS 18545 Valley Center
ROS 18684 Valley Center
ROS 18718 Ramona Airport
ROS 19715 Valley Center Road

ROS 16943 East 1/2 of the County (Caltrans map -I just helped on the field work)

[mpallamary]

Excellent!

Thanks!

[Paul Goebel]

On a similar subject, It would be nice to have the point coordinates of some of these surveys in ASCII format. I can imagine using these for search coordinates, making Point of Interest files for a Garmin (or similar) navigation GPS, or other uses.

[Steve Martin]

Paul,

I don't have the electronic files available any longer since I've taken the job at East Bay MUD. Check over at the County, maybe they can write something out of SANGIS.

On some of the later ROS's we started scanning the field "to reach" sketches and including them on the map. On some of the earlier ones, these sketches are filed as Private Surveys. They are not really private, it was just a convenient place to file them where surveyors could research them.

[torgsurv]

I have created a kml file for google earth that has the points from the Encinitas and Carlsbad city control network surveys, but obviously there's a lot more out there.

You can download a shape file of control points from SanGIS. I have always assumed it was only the points established on the county-wide control network surveys, so I haven't bothered with it, but I looked at the data today, and was blown away. The attached image shows how many monuments they have in my neck of the woods. The only thing I can't figure out is how to make the connections from the point in the GIS software to the map that established it....

[torgsurv]

Apparently there are 22,285 points in the main file. You can also download a file containing only first order control, 1,795 points (a subset of the main file).

[torgsurv]

I figured out that the file with the first order control actually has all the stuff I was looking for: station, monument type and size, record of survey number, epoch, datum, etc. Very handy.

[Steve Martin]

That GFISLOAD indicates that it was loaded from the County Horizontal Control database, so most likely it was not shown on a Record of Survey, but in County field notes. MAN PM 006 was a premark probably for a mapping project along Manchester Ave. It looks like it is a 3rd order traverse point established in 1981. It would have been adjusted on NAD27 then run thru an old NGS program LEFTI to convert to NAD83, so really the accuracy is probably less than 3rd order.

I would try to sort out that old stuff and not use it anymore. Limit your search to 1st order or better. Most of the 1st order points have the ROS number as part of the station name.

PS. I walked away from my desk for a while and did not see your other posts Blake. It looks like you got what you needed.

[land butcher]

Do you still have to pay a blueprinter a few hundred bucks to get a copy of the r/s even though you only need 2 or 3 points. I got hit with that in one of the SD county cities.

[Steve Martin]

Land Butcher,

The County has an on-line map portal where you can get a scanned copy of Record of Survey and other maps. It will cost you a few dollars, but not a few hundred. I had not heard of places charging hundreds of dollars before.
Did you tell them you were from out of town before you ordered the map?

[land butcher]

Didnt order it, used cors stas instead

I haven't been to SD Co for awhile. Their portal used to be govt agency only.

[pls7809]

Land,

Check the County Surveyors Online Research thread for the San Diego link.

Their site is very similar to the Orange County site - I believe the same person or company set it up. The RS sheets are more expensive than OC though. I think $4 or $5 per sheet to download, vs. $2.35 on the OC site.

[Steve Martin]

I found this old drawing from 1995 that you may find interesting. I do not have all of the old fonts that I used, so it does not look as good as it once did, but it was my attempt to show the status of updated control work in the County back then.

[Steve Martin]

Another oldie...

[Steve Martin]

Blake,

Here is an early version (10 year old) of the database that Dan Harrison kept on 1st order Record of Surveys. I hope this helps,

Steve