Sacramento County Benchmarks

[LS_8750]

I found the NAVD 88 benchmark list on SACMAPS but cannot find the map referenced in the document.
Local insight would be much appreciated.

Regards,

[Jim Frame]

The page grid identifiers refer to the Thomas Guide for Sacramento County. I don't know which edition was used to compile the grid references, but the 1992 edition has always corresponded to the BMs I've needed.

If you have a particular area of concern, let me know and I'll post a scan of the pages.

[LS_8750]

I'm working on Roosevelt Avenue, between Stockton Blvd and 44th Street.
Can you forward the Thomas Guide pages?

[Jim Frame]

I've attached a file that might be of help. The county BMs don't look promising -- there were none nearby listed in the current county document. There were a couple in the vicinity on an older (2005) list, but a look at Google StreetView indicates that they got eaten by the HCR monster. However, there are quite a few City of Sacramento marks in the area, and I've included those in the document. Based on StreetView, I color-coded most of them according to likelihood of success: red indicates that it's probably there and accessible, blue indicates maybe, and black indicates problematic access. Note that the city marks are NGVD29.

Good luck!