1. Complete the set of differential leveling notes below, including backsight and foresight

sums and other math checks. The elevation for BM Q38 is 175.67 feet above MSL. The

survey distance for the total loop is 7500 feet Second Order.

a. What is the closure error and correction for this survey?

b. Identify the quality of this survey (Order and Class) (Use Table 2-2 from book if

don't want to convert).

c. Compute the adjusted elevation at TBM 1.

STA

BM Q38

TP 1

TBM 1

TP 2

TP 3

BM Q38

BS

4.52

3.72

8.35

4.92

6.27

HI

FS

4.71

6.27

5.87

5.53

5.43

(E) ELEV