Determine the grade rod reading at station, Civil Engineering

Assignment Help:

A section view of a proposed roadway is shown in Figure 1 with an existing grade point elevation of 100-ft. The proposed roadbed finish grade elevation at station 50+00 is 95.00-ft and slopes at 2% grade. The grade rod reading at station 55+00 is most nearly:

Solution:

The Height of Instrument elevation can be calculated:

HI = 100.00-ft + 8.5-ft = 108.5-ft

The grade rod reading at station 50+00 is calculated by:

HI - station 50+00 elevation = 108.50-ft - 95.00-ft = 13.50-ft

The distance between station 50+00 and 55+00 is 500-ft

The slope is set at 2%, therefore; 2% x 500-ft = 10-ft elevation difference between stations.

Add the results of the proposed roadbed slope which is 10-ft to the grade rod reading at station 50+00 to obtain the grade rod reading at station 55+00 which is 23.50-ft.


Related Discussions:- Determine the grade rod reading at station

Soil Mechanics, What relationship between Atterberg limits and cohesion

What relationship between Atterberg limits and cohesion

Supply each tremie pipe with a single concrete truck, Question Througho...

Question Throughout concreting of diaphragm walls , three tremie pipes are used in single time. But, only one concrete truck is obtainable. How have to concreting works been a

Reinforcement, Where we can provided overlap in columns

Where we can provided overlap in columns

Levellng, introduction of levelling

introduction of levelling

Calculate concrete yield in cubic feet per sack of cement, Calculate the Co...

Calculate the Concrete Yield in Cubic Feet per Sack of Cement A concrete mix design is 1: 1.9: 2.8 by weight.  The water cement ratio is 7 gallons of water per sack.  The aggre

Surveying, length of the line measured with 20m chain found to be 250m.calc...

length of the line measured with 20m chain found to be 250m.calculate true length if the chain was 10cm long

Varignon''s Theorem, What is the easiest way to give proof the varignon''s ...

What is the easiest way to give proof the varignon''s theorem? Help please guys

Survey, who to we calculate the RL at first point.

who to we calculate the RL at first point.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd