Engineering Methodology - July 2013


1.1 Document Use

This document has been prepared to provide an overview of the methodology and approach to the engineering element related to the residential development of the land associated with the rear of 42 Ashby Road, Hinckley. This report is to be read in conjunction with the other reports that accompany the application.


2.1 Site Location

The site is situated 1.2km NNE of Hinckley Town Centre east of Ashby Road behind properties fronting Ashby Road at Ordnance Survey grid reference SP 4315 9495 and incorporates a former brick pit and a quantity of surrounding land. The site is surrounded by an Asda store to the north and north-east, Barwell footpath to the east and by Hinckley cemetery to the south.

2.2 Site Description

The site has extant permission for residential development with the exception of the redundant brick pit element. The site was subject to an appeal where the Inspector noted the site was one planning unit and as the pit pre-dated the current planning system, no measures were put in place to reinstate the land once the former use had ceased. On this basis the site is brownfield land within the settlement boundary of Hinckley with an approved access via number 42 Ashby Road which is now demolished.

2.3 Proposed engineering works to enable residential redevelopment

The reinstatement of the former pit will require engineering works to a standard suitable for house building which will be agreed with the Environment Agency. Engineering material will be transported to site then spread and compacted with a small Caterpillar D6 20 tonne bulldozer. In terms of the engineering element, it is neither substantial in size or duration.

The operation will be dependant on the provision of suitable materials coming to the site by road with a maximum delivery per day of 50 loads equating to 2,250m³ per week and 90,000m³ overall. The current construction of major residential developments in and around Hinckley means the site is the most sustainable for these developments including the Barwell SUE which is due to commence in 2014. On the basis of 50 loads per day, the D6 bulldozer is capable of handling the weekly quantity in half a day and the works will be very low intensity to the extent that the D6 bulldozer will be operating at only 8% of its capacity.

Given the low activity of the D6 on the site interspersed with periods of inactivity, noise levels will be within accepted parameters of 55bdA. Mitigation measures such as a temporary acoustic barrier to complement the permanent one constructed by Asda stores along the western boundary can be agreed and implemented where necessary. When the works approach the surrounding ground level, the operational hours can be reduced accordingly.


3.1 General

The detailed specification shall be subject to the agreement of the Environment Agency as the legislative authority

3.2 Finished Levels Topography

The engineered element shall be 450mm below finished floor levels.

3.3 Testing

Set limits of acceptance will be agreed with the Environment Agency. All materials shall be tested at the agreed frequency to demonstrate suitability for use before placemen


4.1 Hours of work

The hours of works can be controlled by condition with suggested times of 08:00 to 17:30 Monday to Friday and 08:00 to 13:00 on Saturday.

4.2 Plant and Equipment

The plant and equipment on site shall be limited to the following:

4.3.1 Cut to fill operations, compaction trials and preparation of the formation.

4.3.2 Reengineering of imported material [after cut to fill operations]

4.3.3 Ancillary equipment required from time to time

Please view the slideshow below to see what the above Plant and Equipment looks like.

4.3 Welfare

Welfare facilities shall be self contained in one secure site accommodation facility.

4.4 Staff on site

Full time staff on site will be limited to seven during cut to fill works and three during import operations. In addition there will be a number of staff visiting, the duties of these visiting staff shall include but not limited to:

4.5 Duration of the works

4.6.1 Cut to fill operations, compaction trials and preparation of the formation

The on site cut to fill operations, compaction trials and preparation of the formation shall be carried out on completion of dewatering works and be limited to five weeks duration.

4.6.2 Import of material

For sustainability and environmental impact reasons it is important to make use of materials arising from other planning or engineering projects in the locality. Given the recent upturn in large scale residential and mixed use development in and around Hinckley, it is anticipated the engineering element will take less than one year to complete. Suitable material will be imported to the site via eight wheel tipper lorries of 20 tonne capacity.

4.6.3 Validation Testing

The works would be tested progressively during the engineering operation and the Remediation Strategy may require the monitoring of settlement pins to continue for a specified period.

4.6.4 Validation Report

After completion of the works the Validation Consultant shall provide a report to confirm that the works have been carried out in accordance with the requirements of the Remediation Strategy. The report shall include copies of all classification, compliance and validation testing.

Tip: Click on the i (top-left) on the photo viewer for a description of the photo.