Question
Asked Oct 29, 2019
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Figures 1 and 2 below show the existing cross sections at station 0+00 and 1+00. Figure 3 shows the cross section of the proposed roadway for the same two stations. These cross sections are essentially the “before and after” shots of the road. Please answer all of the following questions.
 
a. Draw an overlay of the before and after section (use a full size sheet of engineering paper) for both Stations 0+00 and 1+00.
 
b. Calculate the necessary cut and fill end areas at both stations. (Units of Sq Ft)
 
c. Calculate the volume of the cut and fill for the roadway section between these two stations. (Units of BCY)
 
d. Is there enough material to construct the road? Why or why not?
 
e. What would happen if there is any excess material?
 
f. What would happen if there is not have enough material?
Existing Ground Cross Section at 0+00
Elevation (ft.)
Fig. 1
967
963
965
961
959
10 ft
10 ft
10 ft
10 ft
Existing Ground Cross Section at 1+00
Elevation (ft.)
Fig. 2
970
967
962
959
957
10 ft
10 ft
10 ft
10 ft
Planned Road Cross Section
Fig. 3
Elevation (ft.)
965
964
964
961
961
10 ft.
10 ft
10 ft
10 ft.
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Existing Ground Cross Section at 0+00 Elevation (ft.) Fig. 1 967 963 965 961 959 10 ft 10 ft 10 ft 10 ft Existing Ground Cross Section at 1+00 Elevation (ft.) Fig. 2 970 967 962 959 957 10 ft 10 ft 10 ft 10 ft Planned Road Cross Section Fig. 3 Elevation (ft.) 965 964 964 961 961 10 ft. 10 ft 10 ft 10 ft.

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Expert Answer

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Hey, Thank you for the question. According to our policy we can only answer up to 3 subparts per session. If you need further help, post the question again and mention the number that you want us to solve.

Step 2

The diagrammatic representation for both Stations 0+00 and 1+00 can be illustrated as follows.

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Cut area E 966 G 964 964 Fill area A 962 H 961 961 10

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Step 3

The total cut area can be ca...

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AABC(10)(968-964) 20 Trapezoid BCED=(10)(966-965)+(968-964) =5x(4+1) =25 1(10 (966-965) 23 AEDF =1.67 Total cut area 20+25+1.67 - 46.67

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