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

State the term axial prestressingin - Concrete, State the term Axial Prestr...

State the term Axial Prestressingin Concrete If the centroid of cross-sectional areas of tendons is at the location of the centroid of the cross-section of the concrete member,

Calculate the concrete tensile strength, Calculate the concrete tensile str...

Calculate the concrete tensile strength A 6 in. by 12 in. concrete cylinder resisted a transverse force of 55,000-lbf, at 28 days, in a split tensile cylinder test. Calculate t

What is rapid sand filter, Q. What is Rapid Sand Filter? A Rapid Sand F...

Q. What is Rapid Sand Filter? A Rapid Sand Filter is a water treatment plant that includes provision for pre treating the water by coagulation and sedimentation for settlement

Show the limitations of grillage analysis, Q. Show the Limitations of grill...

Q. Show the Limitations of grillage analysis? In designing the number of cells for concrete box girder bridges, in case depth of a box girder bridge exceeds 1/6 or 1/5 of bridg

Cost-volume-profit and break even analysis, Cost-Volume-Profit and Break Ev...

Cost-Volume-Profit and Break Even Analysis: Cost-volume-profit analysis helps us to learn the behaviour of cost and profit in response to varying level of business activity. I

How quality control is maintained in a rolled fill dam, Sketch a curve show...

Sketch a curve showing the relation among dry density and moisture content for Standard Proctor test and indicate the salient features of the curve. Describe why soils are compacte

Shear force and bending moment, relation between shear force and bending mo...

relation between shear force and bending moment and examples based on those relationship

Write short notes on aqua privy latrine, Q. Write short notes on Aqua Privy...

Q. Write short notes on Aqua Privy Latrine? There are a sort of latrines also called septic tank latrines. These are constructed over septic tanks & flushing is also provided.

Determine minimum radius that can used on horizontal curve, What is the min...

What is the minimum radius, R min , that can be used on a horizontal curve with a 70 mph design speed, a maximum superelevation, e max = 8%, and a side friction factor, f = 0.10?

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