The document provides details of the scope, location, climate, methodology, design, and cost estimate for a proposed road project in Lalitpur District, Nepal. The scope includes surveying, mapping, drainage design, and preparing drawings and estimates. The road runs from Badikhel to Badegaun along the Karmanasha River. Rainfall is highest from June to August. Surveying will use a total station, GPS, and other equipment. The design considers classification, speed, geometry, drainage, and cross-sections. The estimate includes calculations of quantities and rates to develop a bill of quantities and total cost.

1. C. Scope
 To review the existing study reports, standards and
specifications.
 Detailed engineering survey of alignment.
 Preparation of topographical map.
 Study for cross-drainage works and propose suitable drainage
structure.

2.  Preparation of working drawings.
 Preparation of quantity and cost estimate.
 Preparation of survey and design report

3. D. Project location
 The proposed road is located in the Lalitpur District,
Bagmati Zone, Central Region. The road starts from
Badikhel and ends at Badegaun.
 The road runs along Karmanasha River corridor.
 The latitude and the longitude of the starting point are
27057’07’’ and 85035’27’’ respectively.

4. F. Hydrology And Meteorology
 Small temporary streams running only during monsoon crosses
the alignment with small discharge.
 The project area experiences marked seasonal and specific
climate variation with moderately hot summer and relatively
cool winters. Average temperature is 25oC in summer and 10oC
in winter.
 Almost 80% of the rainfall occurs during monsoon which starts
at the middle of the June and continues until the end of August.

5. METHODOLOGY
 DESK STUDY
 SOCIAL IMPACT ASSESMENT
 FIELD WORK
 EQUIPMENT USED FOR SURVEYING
 OFFICE WORK

6. DESK STUDY
 The geographical and the topographical maps
were studied and the relevant information
regarding the alignment selection, cross drainage
structures, gradient of the road were discussed.
 The strategy for the field study was made
accordingly.
 The study team member discussed the related
matters of the project.

7. SOCIAL IMPACT ASSESMENT
The study identified the following key social issues
for investigation:
 Loss of private property and other assets (land,
houses and trees) and compensation modalities
for these losses.
 Population displacement.

8.  EQUIPMENT USED FOR
SURVEYING
 Total station
 GPS device
 Staff
 Compass
 Measuring tape
 Hammer
 Communicating Device

9. DESIGN

10. Road Classification
 As per the NRS 2045, the road project falls on the
category of District Roads.

11.  A Design speed of 30 km/hr is taken for the
design of geometric parameters of the
road.
Design Speed

12.  The Design values are taken as recommended by
NRS 2045 as far as practicable
 The shoulder width is taken as 1 m considering
the site condition and the utility of the road
 Minimum Gradient recommended by NRS (1% for
better drainage) cannot be incorporated
considering the site condition

13. Horizontal Alignment
 The most suitable horizontal alignment was
selected considering the following factors:
 Short (S)
 Easy (E)
 Safe (S)
 Economical (E)
 Minimum radius for the horizontal curve as
recommended by NRS is 12 m. The minimum
radius of 12m is provided at the intersection of
existing road and proposed road.

14.  The extrawidening and transition curves are not
provided owing to low design speed and
simplicity in construction
 A maximum of 5 % super elevation is provided at
each horizontal curve.
 Superelevation is provided by rotation of
pavement about the center line.
 Transition length for super elevation is provided
as 5 m

15.  Summit curves are designed considering stopping
sight distance.
 Valley curves are designed on the basis of night
visibility
 The radius of vertical curve is adopted as large as
possible so that all the factors are satisfied
 The least vertical radius taken in design is 1000 m

16. Cross Section Design
 Cross section is designed providing camber of 4%
on carriageway and 5 % on shoulder
 For embankment the side slope of 1.5H: 1V and
for cut the side slope of 1H: 1V is adopted
 Total pavement thickness of 28 cm is adopted as
per CBR method of design

17.  Gravel is used as the sub-base course
 Otta Seal is used as the surface course

18. Drainage
 Longitudinal drain is provided on the cut slope side of
the road
 The side slope is 1:1 and longitudinal slope is parallel
to the alignment
 Earthen drain is provided from chainage 0+000 to the
chainage of 1+251.35
 Stoned masonry drain of thickness 20 cm is provided
from the chainage of 1+309.82 to chainage 2+027.24

19.  Pipe culverts of 60 cm in diameter and total
length of 7.5m are provided at 12 sections of the
road
 They are provided at the lowest point of the
vertical alignment
 A minimum depth of 60 cm is provided between
the surface of the pavement and the crown of
the pipe

20. Plan and Profile
 Ch. 0+000-0+200
 Ch. 0+200-0+480
 Ch. 0+480-0+760
 Ch. 0+760-1+040
 Ch. 1+040-1+360
 Ch. 1+360-1+700
 Ch. 1+700-2+027.24

21. Cross Section
 Ch. 0+000-0+271.50
 Ch. 0+280-0+500
 Ch. 0+511.92-0+680
 Ch. 0+683.87-0+760
 Ch. 0+780-0+920
 Ch. 0+936.71-1+125.89
 Ch. 1+130.75-1+213.66
 Ch.1+220-1+319.59
 Ch.1+320-1+380
 Ch.1+397.04-1+465.09
 Ch.1+480-1+545.77
 Ch.1+560-1+800
 Ch.1+800.91-1+980
 Ch.1+984.58-2+027.24

22. Typical Pavement
Cross Drainage Structure

23. ESTIMATE
Quantity Estimate
Calculation of Earthwork
Necessary Calculations
Rate Analysis
BoQ /Cost Estimate

24. QUANTITY ESTIMATE
 Earthwork Calculations:
 Calculated at each cross-section
 Separate calculation according to soil type
 Total cut volume = 10283.57 m3
 Total fill volume = 16052.44 m3
 Balance (fill) = 5768.869 m3
 Earthwork for drain = 768.129 m3
All the detailed calculation is shown in the
tabular form in the following slides:

25. Contd………
 Necessary calculations:
i. For side drain:
Calculations were made taking the following
design considerations:
 Section = trapezoidal
 Depth: 0.3m
 Base width: 0.3m
 Side slope: 1:1
 Unlined earthen canal(Ch. 0+000 to 1251.35)
 Lined canal: (ch.1+309.82 to Ch. 2+027.24)
ii. Sub-grade calculations:

26. RATE ANALYSIS
 Rate analysis was performed under the
following criteria:
 The quantity of the materials, required labor
force and plants, machinery, tools and
equipments were taken from the work norms
provided by the DoR.
 The rate for the materials, labors, plants and
machinery, tools and equipments was taken
from the district rates provided by the Lalitpur
DDC.

27. COST ESTIMATE
 The BoQ was prepared on the basis of
the quantity of work calculated and
rate analysis done previously:
 The cost estimate is as below: