Maharashtra State Board of Technical Education

Government Polytechnic College, Murtizapur

CivilEngineering Department
2024-25

Subject: Estimating and Costing

Subject code: (22503)

Micro-Project Topic: Prepare detailed estimate for the

construction of pipe culvert

Guided by :
Mr. Avinash Jakate

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MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION

Certificate
This is to Verify That Mr./Mrs.………………………………………………...
Roll No ..... of Fourth Semester of Diploma in Civil Engineering of
Institute of GOVERNMERNT POLYTRCHNIC MURTIZAPUR (code:.1241) has
completed the Micro-Project Satisfactory in course Estimating and Costing
(22503) for the academic year 2024-2025 as prescribed in the curriculum.

Place…………………. Enrollment no…………………...

Date…………………. Exam Seat No.………………….

Course Teacher Head of the Department Principal

Seal of
Institute

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Sr. Name Roll. Enrollment no.
no no
1 DESHMUKH SARTHAK BABARAO 31 23410260068
2 GAWANDE ANUJ SANTOSH 32 23410260069
3 JAISWAL EKANSH PAWAN 33 23410260071
4 KAMBLE SHITAL ANKUSH 34 235440260073
SHANKARPURE ROSHAN 35 23410260083
5 PURUSHOTTAM
6 SIRSAT SIDDHANT GANESH 36 23410260084

INDEX

Sr. No. Topic Page No.

1. Introduction 4

2. Pipe culvert 5

3. Types of pipe culvert 5-8

4. Questions 9-11
5. Conclusion 12

6. Reference 12

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 ❖ INTRODUCTION

A pipe culvert is a structure that allows water to flow under roads, railways, or other
barriers. It is usually made from materials like concrete, steel, or plastic. The main job
of a pipe culvert is to manage water drainage and prevent flooding, which can
damage roads and property.
When it rains, water collects in ditches, streams, or low areas. Without a culvert, this
water could overflow and create problems. The culvert acts like a tunnel, carrying
water safely from one side to the other.
To build a pipe culvert, engineers dig a trench and place the pipe inside it. They then
cover the pipe with soil, making sure it is strong enough to support the weight of
vehicles above. The size of the culvert depends on how much water it needs to
handle.
Engineers carefully design culverts to match the expected water flow and the
surrounding environment. If too little water can pass through, it might cause flooding.
If too much water can pass, it might erode the surrounding land.
Regular maintenance is important for culverts. They can get blocked by debris, leaves,
or dirt, which can stop the water flow. Keeping them clear helps ensure that they
work properly.
In summary, pipe culverts play a vital role in infrastructure by allowing water to flow
safely and efficiently, protecting roads and communities from flooding.

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 ❖ Pipe culvert

• A pipe culvert is a structure that helps water flow under roads, railways, or other
barriers. It is typically made from materials like concrete, steel, or plastic. The
main purpose of a pipe culvert is to manage drainage and prevent flooding by
allowing water to pass through safely.

• When heavy rain occurs, water can collect in low areas, but a culvert directs this
water away, reducing the risk of damage. Engineers design culverts based on the
expected water flow and the surrounding land. Regular maintenance is essential
to keep culverts clear of debris and functioning well. Overall, pipe culverts are
important for protecting infrastructure and managing water effectively.

❖ Types of culverts
1) Box culverts
2) Arch culverts
3) Bridge culverts
4) Metal box culverts

1) Box culverts

• A box culvert is a type of structure used to allow water to flow under roads,
railways, or other barriers. It has a rectangular or square shape, which makes it
different from pipe culverts that are round. Box culverts are typically made
from concrete and are designed to handle larger volumes of water.
• They are often used in areas where there is a lot of runoff, like during heavy
rain, to prevent flooding. Box culverts can also support the weight of vehicles
and are often placed under busy roads.
• Engineers design box culverts based on the expected water flow and the
surrounding environment. Proper installation and regular maintenance are
important to keep them functioning well. Overall, box culverts play a key role in
managing water flow and protecting infrastructure.

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2) Arch culvert

• An arch culvert is a structure used to allow water to flow under roads, railways, or other
barriers. It has a curved, arch shape, which gives it strength and helps support the
weight of vehicles above. Arch culverts are often made from materials like
concrete or stone.
• These culverts are designed to handle water flow while also allowing wildlife to
pass underneath. They can be used in areas with streams or rivers, helping to
manage water and prevent flooding.
• The arch design helps distribute the weight evenly, making them very durable.
Engineers consider the expected water flow and surrounding landscape when
designing arch culverts. Regular maintenance is important to keep them clear of
debris. Overall, arch culverts are effective for managing water and protecting
infrastructure.

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3) Bridge culvert

• A bridge culvert is a structure that combines features of both a bridge and a

culvert. It allows water to flow under a road or railway while also providing a
surface for vehicles to cross over. Bridge culverts are typically made from
materials like concrete or steel.
• They are used in areas where the water flow is significant, such as rivers or
large streams. The design of a bridge culvert includes a raised area for
vehicles to drive on, while the water flows underneath through an open
channel.
• These structures help prevent flooding by allowing water to pass freely, and
they can support heavy loads from traffic. Engineers design bridge culverts
based on factors like water flow, traffic volume, and the surrounding
environment. Regular maintenance is important to ensure they remain safe
and effective. Overall, bridge culverts are crucial for safe transportation and
effective water management.

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4) Metal box culverts

• A metal box culvert is a type of culvert made from metal, usually steel or
aluminum, and has a rectangular or square shape. It is used to allow water to
flow under roads, railways, or other structures. Metal box culverts are strong
and durable, making them suitable for areas with heavy traffic.

• These culverts are often used in places where water flow needs to be
managed, such as rivers, streams, or drainage ditches. The design helps
prevent flooding by directing water safely away from roads and buildings.

• Metal box culverts are easier to install than some other types because they
can be prefabricated and brought to the site. Regular maintenance is
important to check for rust or damage. Overall, metal box culverts are
effective for managing water and supporting infrastructure.

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 ❖ Questions

➢ Q) Prepare the detailed estimate for the pipe culvert from the given Image

Solution: -
MEASURMENT SHEET
Item Description Length Width Height Quantity
no N0 (m) (m) (m)
1. Earthwork excavation
Head walls 2 6.9 1.6 1.45 30.62
Barrel portion 1 4.9 1.3 1.45 9.23
Total= 39.85𝑚3
2. Cement concrete M15
foundation

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 Head walls 2 6.6 1. 0.45 9.5
Barrel portion 1 4.9 1.3 0.45 2.86
Cardel bedding 1 (11.34)/2 1.3 0.3 2.21
Deduct pipe portion 1 (11.34)/2 𝜋0.62 /8 _ -0.77
From cradle bedding
Total= 13.73𝑚3
3. Cement concrete m20
for super structure
Head walls
Trapezoidal portion 2 6 1.3/2 1.3 9.5
Rectangular Portion 2 6 0.3 0.5 2.86
Deduct pipe portion 2 1.67/2 𝜋0.62 /4 - 2.21
Total= 13.73𝑚3
4. Supply of NP3 class RCC
Hume pipes 3 2.5 - - 7.5RMT
5. Gravel filling
Beside pipes 1 12/2 13 0.3 2.3
Above pipes 1 13.6/2 6 4 15.67
Deduct pipe portion 1 12/2 𝜋0.62 /8 - -0.14
Total= 17.87𝑚3
6. Cement concrete M20
above gravel filling 1 6 6.9 0.1 4.14𝑚3

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 ➢ Q) Prepare the detailed estimate for the pipe culvert from the given diagram
Note: - Take the length of wall =5m

Solution: -
MEASURMENT SHEET

Item Description Length Width Height Quantity

no NO (m) (m) (m)
1. Earthwork excavation
for pipe culvert 1 5.00 1.8 1.30 11.70𝑚3
2. Plan cement concrete 1 5.00 1.8 0.30 2.70𝑚3
3. R.R. Masonry in CM 1 5.00 0.9 2.00 3.00
(1:6) deduction of pipe 1 π/4 x 0.92 1.04 -0.46
Total= 8.34𝑚3

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 ❖ Conclusion

• Pipe culverts are essential structures that play a crucial role in managing water
flow and drainage. By allowing water to pass safely under roads, railways, and
other barriers, they help prevent flooding and protect infrastructure from water
damage. Made from materials like concrete, steel, or plastic, pipe culverts come
in various sizes to accommodate different water flow needs.
• Proper design and installation are key to ensuring their effectiveness. Engineers
carefully calculate factors like expected water volume and the surrounding
landscape to create culverts that can handle specific conditions. Regular
maintenance is also important, as blockages from debris can hinder water flow
and lead to problems.
• In addition to their practical benefits, pipe culverts contribute to the overall
safety of roads and communities. They help maintain the natural flow of
waterways and can even support wildlife movement. Overall, pipe culverts are
vital components of effective water management systems, ensuring that both
transportation and the environment are protected. By investing in proper
design and maintenance, communities can ensure that these structures
continue to function well for years to come.

❖ Reference
www.google.com
www.chatgpt.com
www.wikipedia.com

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