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

Explain in brief about the term - anchorage, Explain brief about the term -...

Explain brief about the term - Anchorage A device used to anchor tendons at the end of a concrete member is called as an anchorage in the case of post-tensioned concrete. In th

Trigo, a pilot entering a bay on course

a pilot entering a bay on course

Define the abrasion - underwater inspection of bridge, Define the Abrasion ...

Define the Abrasion - underwater inspection of bridge? Abrasion damage is caused by continuous action of external forces on the surface of the concrete element. Erosive action

Sea breeze and land breeze, Explain the following: (a) Sea breeze and L...

Explain the following: (a) Sea breeze and Land breeze (b) What is Thermal comfort (c) What is Global wind pattern and Coriolis effect (d) How wind affects the tempe

Sketch typical complete grain-size distribution curves, Sketch typical comp...

Sketch typical complete grain-size distribution curves for (i) well graded soil and (ii) uniform silty sand. Form the curves, evaluate the uniformity coefficient and effective size

True or false, an increase in consumer income will affect the supply of any...

an increase in consumer income will affect the supply of any given product

Loss of prestress due to creep of concrete, Loss of prestress due to creep ...

Loss of prestress due to creep of concrete Creep of concrete means time dependent deformation of concrete. Its effect depends upon the interval of  time for which the member is

Need Answer, EXPLAIN THE STRUCTURE OF EXOGENEOUS TREE WITH DIAGRAM ?

EXPLAIN THE STRUCTURE OF EXOGENEOUS TREE WITH DIAGRAM ?

Calculate the uniform pressure on the soil, The plan of a proposed spoil he...

The plan of a proposed spoil heap is shown in Fig. The heap will stand on a thick deposit of soft clay with E-value 15 MN/m 2 . The uniform pressure on the soil may be suppose as 1

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