rzeczoznawca budowlany in English:

survey -> surveyor

But if I'm not mistaken and my history could be wrong, but when they were putting in the railway they couldn't get through the Rockies until they finally... I think Rogers was the guy, the lead surveyor or whatever he was, who found the pass to get the

The surveyor could also advise the promoters which route could be most easily—and therefore most cheaply—constructed.