The accompanying tabulation gives elevations of points over the area of a 50 m by 60 m tract of land. The elevations were obtained by the grid method using 10 - m squares. Point A – 1 is located at the northwest corner of the lot and point G– 6 at the southeast corner. All elevations are in meters. Construct a contour map using any horizontal scale with a contour interval of 20 meters. The proportional spacing of contour lines must only be determined analytically. POINT 1 3 4 6 A 1522.82 1559.25 1485.10 1413.45 1362.12 1290.56 B 1440.00 1441.32 1462.38 1451.65 1391.05 1340.00 1395.45 1425.68 1506.44 1480.37 1400.72 1371.58 D 1409.56 1453.68 1545.15 1460.00 1410.28 1393.19 E 1436.73 1479.15 1495.65 1415.30 1434.05 1430.00 F 1470.35 1520.44 1490.68 1465.40 1452.98 1458.16 G 1545.25 1565.00 1519.50 1490.23 1475.10 1470.75

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Analytical Method of Plotting Contours | SURVEYING LEC

The accompanying tabulation gives elevations of points over the area of a 50 m by 60 m
tract of land. The elevations were obtained by the grid method using 10 - m squares. Point A – 1
is located at the northwest corner of the lot and point G– 6 at the southeast corner. All elevations
are in meters. Construct a contour map using any horizontal scale with a contour interval of 20
meters. The proportional spacing of contour lines must only be determined analytically.
POINT
1
2
3
4
5
6
A
1522.82
1559.25
1485.10
1413.45
1362.12
1290.56
В
1440.00
1441.32
1462.38
1451.65
1391.05
1340.00
1395.45
1425.68
1506.44
1480.37
1400.72
1371.58
D
1409.56
1453.68
1545.15
1460.00
1410.28
1393.19
E
1436.73
1479.15
1495.65
1415.30
1434.05
1430.00
F
1470.35
1520.44
1490.68
1465.40
1452.98
1458.16
G
1545.25
1565.00
1519.50
1490.23
1475.10
1470.75
Transcribed Image Text:The accompanying tabulation gives elevations of points over the area of a 50 m by 60 m tract of land. The elevations were obtained by the grid method using 10 - m squares. Point A – 1 is located at the northwest corner of the lot and point G– 6 at the southeast corner. All elevations are in meters. Construct a contour map using any horizontal scale with a contour interval of 20 meters. The proportional spacing of contour lines must only be determined analytically. POINT 1 2 3 4 5 6 A 1522.82 1559.25 1485.10 1413.45 1362.12 1290.56 В 1440.00 1441.32 1462.38 1451.65 1391.05 1340.00 1395.45 1425.68 1506.44 1480.37 1400.72 1371.58 D 1409.56 1453.68 1545.15 1460.00 1410.28 1393.19 E 1436.73 1479.15 1495.65 1415.30 1434.05 1430.00 F 1470.35 1520.44 1490.68 1465.40 1452.98 1458.16 G 1545.25 1565.00 1519.50 1490.23 1475.10 1470.75
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