oba510
Bobchip, the "notes" like this one here are just informal error reports. When you mark it as resolved it doesn't actually change any of the map data, it just makes the note disappear after a couple of days. In order to correct the map someone (anyone, including you) has to actually edit the map.

Bobchip's original message was correct. A new bridge was built and the intersection/road substantially rebuilt, and the map is now out of date. (See http://www.co.contra-costa.ca.us/6594/Alhambra-Valley-Road-Washout )