Procedure for Borrow Area Approval

• There is an agreement between the concessionaire and the owner of the land.
• The plan for the borrowed area should include proper dimensions and photographs.
• Additionally, consider the borrower’s capacity.
• Additionally, rehabilitation plans, etc..

• Once we receive the aforementioned documents, we will follow the following steps to approve the material from the borrower area:
• First, the proposed borrow area will be sampled jointly.
• Furthermore, if the plan is to use the barrow area for earthen shoulder construction, Then, the soil properties should match the subgrade requirements. [For clear reference, follow Clause 407.2 and Clause 305 of the MoRT&H Specifications].
• As per Clause 305 of MoRT&H, the laboratory must carry out all necessary tests on the materials before acceptance.

• Material characteristics
• Sieve analysis, or particle size distribution
• Liquid Limit
• Plastic Limit
• Plasticity Index
• Shrinkage Limit
• Free Swelling Index
• When working on road projects for NHs, SHs, and MDRs, we implement heavy compaction. We’re guided by IS 2720 (Part 8), which helps us compute the perfect moisture content (OMC). This is figured out from the moisture-density equation. For rural roads with ODRs and VRs, light compaction might be a better fit. For this, we turn to IS 2720 (Part 7).
• Deleterious constituents
• However, the engineer-in-charge may, if deemed necessary, subject the substrata and fill soil for the substrata to tests. Such tests may include shear strength and consolidation, particularly in the case of high fills or embankments laid on soft foundations.
• The tests mentioned above must be conducted as per the procedure outlined in IS 2720 (“Methods of Testing for Soils”).
• Following the laboratory tests, classify each soil sample using the Indian Standard System of Soil Classification (IS 1498). For guidance on how to construct earth embankments and subgrades for road works, refer to Table 1 of IRC:36.
• The presentation of laboratory investigation results must be concise. The pro forma for presenting laboratory investigation results must follow the IRC’s 36. The IRC’s 36 provides recommended practices for the construction of earth embankments and subgrade for road works.

• We must test samples of the soils used for the embankment and subgrade (up to 500 mm for NHs, SHs, and MDRs, and the top 300 mm for rural roads) in the lab to determine their CBR after soaking them in water for four days. We will use the results of these tests to design the pavement.
• We can approve the material for use in the preparation of the earthen shoulder. If we achieve permissible values from all the tests mentioned above, as per MoRTH specifications, we can proceed with the preparation of the earthen shoulder. We kindly ask you to adhere to the concession agreement’s requirements, as well as the relevant standards and specifications, as soon as possible.
• Further, it is to be noted that the location submitted as a borrow source is sampled under the Standard Procedure for Borrow Pit Sampling for Source Approval Materials. And research personnel and equipment are provided to sample the locations; the contractor performs the manual labour.
• Experts analyse the results of laboratory tests, verify them for conformance to specifications, and evaluate them based on the behaviour of similar soils observed during previous construction projects. The map preparation locates the tested property, references the boring locations, indicates the depth of approval, and outlines the approved area.

• The distance to the nearest sacred tree, if any, is unknown.
• Distance from the nearest school, hospital, or primary healthcare center
• The community uses borrowed areas on a daily or occasional basis.
• Are there any schemes or avenues for generating income for the adjoining community? The selection and recommendations for loan areas will be based on both environmental and civil engineering considerations. The location of a material supply source for embankments or subgrades, as well as the excavation or transport procedures, must adhere to the environmental requirements set forth by the MoEF, Authority, and IRC 10-1961.

Operation

The engineer will decide the size and shape of the borrow pits to prevent embankment slippage. The contractor will be responsible for the mitigation of the impacts in the borrow areas. For each borrow area location, the contractor will develop site-specific redevelopment plans, which the supervision consultant will then implement.

You should borrow the earth from the recommended locations listed below:

• Non-Cultivable Lands
• Productive Lands
• Elevated Lands
• Borrow pits along the roadside
• Borrow pits on the riverside
• Community or private ponds
• Borrow areas near settlements.

Procedure for Borrow Area Approval: Criteria for Evaluation of Borrow Areas

• Existing land use, whether it is agricultural barren, scrub, grazing, or any other type,
• Vegetation or trees must be removed.
• Erosion/degradation potential
• The nearest settlement’s distance and name
• How far away is the nearest surface water body?
• The drainage pattern of the area
• The distance to the nearest reserve forest, if any, is unknown.

• The following checklist provides guidelines to ensure that the redevelopment of borrow areas must comply with MoSRT&H, Clause 305.2.2.2, and the EMP requirement.
• The contractor must ensure that the following data is documented for each identified borrow area that provides the basis of the redevelopment plan:.
• Chainage along with offset distance
• Area (in sq m)
• Type of Access/Width: Kutcha, Pucca, etc. from the carriageway
• Soil Type
• Slope and Drainage Characteristics
• Water table of the area, identify the nearest well, etc., or ask people
• Existing land uses include barren, agricultural, and grazing lane areas.
• Also, location, name, population, cast of the nearest settlement or community, distance from the borrower area, type, and characteristics of the settlement
• Daily or occasional use of the Borrow Area by the community, if any
• Could you identify any other community facilities in the vicinity of the borrow pit

• Access to property, width of access, or material
• Orientation of property for the road

• Site Slope
• Local drainage, water logging, etc., if any
• Location of nearest culvert, etc., if any, to drain water if required
• Any other community resources, such as tube wells, wells, etc., in the vicinity

• Location of trees, including species, girth, and foliage spread, and an afternoon shaded area on the ground
• Surrounding land use; nearby settlements (name of structure or pattern of settlement)
• Also, mark the part of the borrowed area that is most suitable for storing and staking topsoil.

• • The contractor has to prepare the drawings showing both cross-sections as well as the plan of the identified borrow areas, incorporating the following inputs:
  • Contours, if any, and depth, if any
  • Also, the location of trees, height, foliage spread, and afternoon shaded area on the ground
  • Are there any other existing details at the road/property interface, such as signage and railing?
  • Describe the immediate surroundings for a minimum of 5 meters on either side.

  Photographs to be Included

  It is imperative for the contractor to take photographs both before and after the excavation of borrowed materials. Once the contractor implements the redevelopment plan, they should also incorporate the following:

  Overall view from the access side

  Additionally, are there any other community resources nearby?

  Furthermore, you must specify every location, such as access to a pit or a cluster of existing trees, among other things.

  Outputs

  The contractor must ensure that, based on the above-mentioned guidelines, the following outcomes evolve:

  • Working plan
  • Cross Section Longitudinal Section/Elevation of Site
  • Also, details of all proposed enhancements, including signage, etc.
  • BoQ

• In advance of opening any barrow area, the contractor must inform the independent engineer or the barrow area authority.
• Ensure to secure the source’s approval for the relevant pay item.
• The engineer’s approval is always required for the control of a borrow source and the acceptability of all borrow area material.
• Provisions regarding borrow areas include:
• The engineer requires test pits to assess the source’s acceptability and limitations. The contractor must supply these at its own cost.
• Before initiating the borrow area operation, clear all borrow pit areas of sod, top-over burden soil, and vegetation matter.
• Further, where borrow pits result in the formation of ponds or low areas intermittently filled with water, the contractor is to provide the engineer with a copy of its agreement with the landowner permitting the use of such areas.
• Moreover, if such an area is within sight of any highway, the authority’s written approval is required prior to the removal of the borrower from such a location.
• When grading plans are required for such areas, consider their appearance if they are visible from any highway.

The general conditions for accepting borrowed material will be as follows:

• Acceptance of ordinary borrowing is contingent upon the material being deemed suitable.
• Additionally, Select Borrow must accept the material as suitable and meet the additional requirements of the engineered granular mix.