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

#transportation engineering sessional.., #how the result of DETERMINATION O...

#how the result of DETERMINATION OF THE 10 PERCENT FINES value can be interprited?

State the laws governing compaction of cohesion less soils, a) What are th...

a) What are the laws governing compaction of (i) cohesion less soils like sand and (ii) moderately cohesive soils like sandy clay ? b) To what compaction pressure does the

Determine the void-ratio and shrinkage limit, An oven-dry soil sample of vo...

An oven-dry soil sample of volume 225 cm3 weighs 3.90 N. If the grain specific gravity is 2.72, determine the void-ratio and shrinkage limit. What will be the water content which w

Determine the water-cement ratio, A concrete batch plant provided the Desig...

A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix.  The Water-cement

Concrete mixers, what do you mean by buttering mixers

what do you mean by buttering mixers

Concrete with crush sand, what precaution taken during the mixing of crush ...

what precaution taken during the mixing of crush sand in winter season

Determine length of guide bunds, Q. Determine Length of guide bunds? Leng...

Q. Determine Length of guide bunds? Length of a guide bund has to be such that the flow approaching even from behind the guide bund would pass through the bridge with minimum obl

Main problems related with prestressed concrete piles, Question What ar...

Question What are main problems related with prestressed concrete piles ? Answer Origin of Daido piles comes from Japan where these prestressed actual piles are used

Assignment , A cantilever beam is loaded with a concentrated. Force of 5kN ...

A cantilever beam is loaded with a concentrated. Force of 5kN at the free end. The length of the cantilever beam is 1m having cross section of 50×50mm. determine the equation for b

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