Ganga Expressway

An Engineering Marvel

About Ganga Expressway

The Ganga Expressway is one of India’s most ambitious infrastructure projects, aimed at boosting connectivity and economic growth. This six-lane expressway links the eastern and western parts of Uttar Pradesh, promising reduced travel time, enhanced transportation efficiency, and socio-economic benefits.
The project involves multiple challenges, especially in terms of topography, environmental impact, and large-scale material handling. This is where Road Estimator software plays a crucial role in simplifying the complexities of road design, especially in creating typical cross sections (TCS) and performing quantity takeoffs.
In this article, we’ll dive into some of the typical cross sections (TCS) of the Ganga Expressway project, highlighting the engineering considerations and the ease of generating these sections using Road Estimator.

Project details

The Ganga Expressway, spanning a length of 1,047 km (651 mi), has been granted approval for 594 km (369 mi). It is a greenfield expressway in the state of Uttar Pradesh, India, featuring 6 lanes initially, with the potential for expansion to 8 lanes. The construction is split into two phases, with the first phase connecting Bijauli village on NH-334 in Meerut district to Judapur Dandu village on NH-19 in Prayagraj district via Sarai Katiyan village on NH-27 in Kanpur. The second phase involves extending the expressway from Prayagraj to Ballia and from Meerut to Haridwar.

Typical Cross Sections (TCS) of Ganga Expressway

Standard Fill Section with Depressed Median

The typical cross section above demonstrates a standard fill section designed for areas with level terrain. The carriageway is supported by selected earth fills on both sides, ensuring stable embankments and proper drainage.
Carriageway Width: 7.5 m per lane, 2 lanes per direction.

  • Median: A depressed median of 15 m is incorporated, providing a safe buffer between opposite lanes, helping with water drainage during the rainy season.
  • Paved Shoulders: On both sides, a 3 m paved shoulder adds extra safety and operational space.
  • Drains: Unlined drains run along the edges to manage stormwater and prevent erosion.

Road Estimator simplifies the creation of this typical section by providing pavement layer definition, slope configurations, and fill calculations, saving substantial time and effort in the quantity takeoff process.

Service Road with Utility Corridor

This cross section illustrates a service road alongside the main expressway. It also includes a utility corridor for future expansion and service needs, making it an ideal design for urban or semi-urban stretches.

  • Service Road: A 7 m/3.75 m wide service road on one side or on either side offers access to local traffic, keeping high-speed traffic on the expressway unaffected.
  • Utility Corridor: A dedicated 2 m wide utility corridor ensures space for pipelines, cables, and other essential infrastructure without the need for future excavations.
  • Fencing: Concrete fencing panels along the road protect pedestrians and vehicles while demarcating public and private spaces.

Road Estimator’s ability to integrate service roads and additional corridor, while displaying fence symbol and calculating precise material quantities, makes it useful for this type of project section.

Cross Section with Retaining Earth (RE) Wall

In certain areas, due to challenging terrain and the need to minimize land acquisition, the cross section features a Retaining Earth (RE) wall to make better use of the available space. This is especially important in areas where space for embankments is limited.

  • Carriageway Width: 17 m per lane with additional removable crash barrier per direction.
  • Median: A 5m wide median acts as a safety buffer.
  • Retaining Wall: The RE wall is used on either side of the carriageway to support the road structure in fill sections and reduce the need for wide embankments. It also provides a stable slope for construction in areas with limited right-of-way.

Using Road Estimator, engineers can easily model the RE wall, adjust its dimensions based on topographical conditions, and calculate the required quantities for both earthworks and materials. The software significantly reduces manual effort and errors, ensuring the section complies with design & construction requirements.

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Road Estimator: Simplifying Cross Section Design

Road Estimator has transformed the way engineers approach road projects. Whether it’s calculating complex cut and fill requirements, designing service roads, or managing RE walls, the software makes it easy to handle large volumes of data and generate cross sections quickly and accurately.

For the Ganga Expressway project,

  • Road Estimator is used extensively to:
    Automate Cross Section Generation: From simple fill sections to complex medians, Road Estimator can generate a variety of TCS with precision.
  • Compute Quantities: The software calculates earthwork quantities, material requirements, and other crucial factors automatically, saving time and reducing errors.
  • Enhance Collaboration: Engineers across various stages of the project can collaborate efficiently by sharing cross sections, reports and data in the required format.

To see how Road Estimator can simplify the creation of typical cross sections and handle quantity takeoffs with ease, we invite you to watch the recorded webinar. You’ll get an inside look at the Ganga Expressway project, learn how to generate these typical cross sections using the software, and see the demonstrations of quantity takeoff processes.

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