Elementary Surveying: An Introduction To Geomatics (15th Edition)
15th Edition
ISBN: 9780134604657
Author: Charles D. Ghilani
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 25.3P
What factors must be taken into account when designing a grade line on any highway or railroad?
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Read the question carefully and give me right solution according to the question.
A −1.10% grade meets a +0.60% grade at station 36 + 00 and elevation 800.00 ft. The +0.60% grade then joins a +2.40% grade at station 39 + 00. What is the station of the midpoint?
Please answer the questions in the picture please, Show all of your work. Thank you.
Copy the questions and answer. Provide necessary drawings / illustrations base on the
problems.
Problem 1:
A -3% grade meets a +5% grade near an underpass. In order to maintain the
minimum clearance allowed under the bridge and at the same time introduce a vertical
transition curve in the grade line, it is necessary to use a curve that lies 200m on one
side of the vertex of the straight grade and 100m on the other. The station of the
beginning of the curve (200m side) is 10+ 000 and its elevation is 228m.
a.) Determine the elevation at station 10 +
040.
b.) If the uphill edge of the underside of the
bridge is at station 10+ 220 and at
elevation 229.60m, what is the vertical
clearance under the bridge at this point?
c.) Determine the stationing of the lowest
point of the curve.
P..C.
10+000
Fl. 228 m
40
-200
81=-38
10+040
H
-100
20+5%
8=(500+£0 3001 -
Chapter 25 Solutions
Elementary Surveying: An Introduction To Geomatics (15th Edition)
Ch. 25 - Prob. 25.1PCh. 25 - Prob. 25.2PCh. 25 - What factors must be taken into account when...Ch. 25 - Prob. 25.4PCh. 25 - Prob. 25.5PCh. 25 - Prob. 25.6PCh. 25 - Prob. 25.7PCh. 25 - Prob. 25.8PCh. 25 - Prob. 25.9PCh. 25 - Prob. 25.10P
Ch. 25 - Prob. 25.11PCh. 25 - Prob. 25.12PCh. 25 - Prob. 25.13PCh. 25 - Prob. 25.14PCh. 25 - Prob. 25.15PCh. 25 - Prob. 25.16PCh. 25 - Prob. 25.17PCh. 25 - Prob. 25.18PCh. 25 - Prob. 25.19PCh. 25 - Prob. 25.20PCh. 25 - Prob. 25.21PCh. 25 - Prob. 25.22PCh. 25 - Prob. 25.23PCh. 25 - Prob. 25.24PCh. 25 - Prob. 25.25PCh. 25 - Prob. 25.26PCh. 25 - Prob. 25.27PCh. 25 - Prob. 25.28PCh. 25 - Prob. 25.29PCh. 25 - Prob. 25.30PCh. 25 - Prob. 25.31PCh. 25 - Prob. 25.32PCh. 25 - Prob. 25.33P
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- A surveyor must stake a symmetrical vertical curve where an entering grade of+0.80% meets an exiting grade of -0.40% at station 90+00.00, which has an elevation of 100.00 ft. The maximum allowable change in grade per 100.00 ft station is -0.2%. What is the length, in station, of the vertical curve a) described? What is the elevation of 92+00.00 on the vertical b) curve? с) What is the highest point on the curve previously described? Surveying Solved Problems for the FS and PS Exams 4th Edition by Jan Van Sickle.arrow_forwardQuestion 7, The elevation at Station 4+13.88 is 351.07 feet. The grade at station 6+27.08 is 355.89 ft. What is the grade in percent? Answer 7:arrow_forwardDifferentiate between backwater curve and drawdown curve.arrow_forward
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