I mean an internal backup, like a button cell or whatever.

Love starting a large construction project and seeing it through to as-builts. Enjoy the interfacing with the trades and helping them with the layout ...

I liked Topcon for years due to local dealer support, switched to Trimble when he did. Spent 5 years in hard rock tunnels, drill & blast, TBMs etc...

Thanks everyone.

See if your local dealer can hook you up with a used robot. I'll bet it can be done for 5-6k. Take a small loan or lease, skip the endless walking bac...

My first job was as a rear chainman with a medium size land surveyor in 1971. My chief did all his calcs in the car by hand with a Illinois Tool trig ...

Thought it looked familiar, was out there in May visiting with some Dragados buddies.

Bought a Trimble R8 GPS used from Canada a few years back, no problems.

Where is the elevated railway?

Not attached. Use that photo in the certificate.

In New York, the MTA requires the use of 0.5" instruments for tunneling projects.

Looks like Switzerland.

GPS aside, I'm in love with your island. Been there on vacation many times over the last 30 years. Have seen many changes in Cruz Bay, and more recent...

FIRM maps are in NAVD88 in this county. I may be making too big of a deal out of it, being in a VE zone. It will be hit with waves, not gradual floodi...

The published benchmarks are county. I reversed it, I'm low the plan is high. The building would be 0.50' low.

Panel marks are long gone. We did check the published benchmarks, one 30 years old the other 60, and agree that we disagree. The point is, over time g...