The back sight reading on a BM of RL 500 m is 2.685 m and force sight reading on a point is 1.345 m, the RL of the point is:

Construction management involves planning, budgeting, coordinating, and supervising construction projects from start to finish.
 

The 6 main stages of a typical construction project are: pre-construction, sitework, rough framing, exterior construction, MEP (mechanical, electrical, and plumbing), and finishing.