The trigonometric levelling from the surveyor's notes is shown below. The ground elevation of T (ft) is most nearly:
Solution: The elevation of point P can be found from:
ElevP = elevT + HI - (Horizontal Distance) tan α + Rod Reading
ElevT = elevP - HI + HD tan α + RR
= 1703.99-ft - 5.02-ft + (220.85) tan 7°10'10" + 4.22-ft
= 1730.97-ft (answer)