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

Strength - aggregate impact test, Strength: The strength of aggregate...

Strength: The strength of aggregates is determined from one of the three tests : Aggregate Impact Test In which the aggregates in a mould are subjected to impact caus

Is cbr test is an arbitrary test, CBR Test is an arbitrary test', justify. ...

CBR Test is an arbitrary test', justify. Explain the procedure for conducting the CBR test in the field. Surcharge loads are used in the CBR test; Describe their significa

Determine the uniformly distributed load, A rectangular area 4 m × 6 m carr...

A rectangular area 4 m × 6 m carries a uniformly distributed load of 100 kN/m 2 at the ground surface. Estimate the vertical pressure at a depth of 6 m vertically below the centre

Hydraulics, what is hydraulic grid line

what is hydraulic grid line

Classification of bricks, Bricks may be broadly classified as following: ...

Bricks may be broadly classified as following: Paving bricks Building bricks Special bricks A.   Fire bricks B.   Building Bricks: These bricks are utilized fo

Maintenance of steel bearings, Q. Maintenance of steel bearings? Cleani...

Q. Maintenance of steel bearings? Cleaning and greasing of bearings is one of the important maintenance works to avoid premature failure of bearings and reduce recurring heavy

Pros and cons of a variety of non-destructive weld methods, Question In...

Question In checking quality of weld, what are pros and cons of a variety of non-destructive weld inspection methods as in ultrasonic test, radiographic inspection and magnetic

Timber, defects in timber?

defects in timber?

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