Work specification for vehicle access crossing contractor
- Works shall be constructed to conditions approved by Staffordshire County Council.
- Gradients shall, in general, not exceed 1 in 12, to ensure the safety of pedestrians.
- The design shall, where space permits, maximise the area of level footway to the rear of the footway to assist the passage of mobility impaired pedestrians.
- All inspection covers shall be adjusted, as necessary, to meet finished levels and be of suitable quality to withstand vehicle loading. Such works will be carried out in accordance with the requirements of the appropriate utility company.
- No work shall proceed unless all approvals have been given, this includes approval from third parties, where the applicant is not the owner of the property; vehicle crossing approval, any planning permission (classified roads etc.), obtaining of a road opening licence and the compliance with all conditions and items therein.
- Any changes to the design shall be agreed in advance with Staffordshire County Council.
- Whilst works are under construction, the contractor shall ensure that temporary signing is provided in accordance with Chapter 8 of the Road Traffic Signs Manual and the appropriate Codes of Practice.
- Drawing No. CSR/93/35A shows a standard detail for a typical vehicle crossing in flexible construction.
- Where existing footway construction differs in any way from the standard drawing and materials in this specification, the contractor shall consult Staffordshire County Council, before commencing any works to agree details.
- The specification referred to, is the “Specification for Highway Works” published by the HM Stationery Office with the latest amendments.
- The new access shall tie in with the existing footway surfacing materials and levels. Prior to excavation, all edges shall be saw cut to prevent damage to surrounding surfaces. Vertical faces are to be painted with bitumen immediately prior to reinstatement.
- Excavation shall be carried out to the required depth to achieve the specified construction thickness. Additional excavation will be required in soft ground. All excavated material shall be properly disposed of, or recycled, off site.
- The contractor shall ensure all utility apparatus is identified and properly protected, with trial trenches dug as necessary. If additional protection is required, the relevant utility shall be notified by the contractor/applicant.
- Existing kerbs shall be carefully removed, including existing bedding and backing, minimising damage to the existing carriageway.
- Dropped kerbs shall be laid to a smooth line and level with a 25mm upstand at the carriageway edge.
- Sub base to be 150mm thick complying with Clause 803, 806 or 816.
- Binder course to be 45mm thick open graded macadam, 20mm nominal size (Clause 6.1 of BS 4987-1).
- Surface course to be 20mm thick medium graded macadam, 6mm nominal size (Clause 7.6 of BS 4987-1).
- Precast concrete kerbs shall be 250 x 125mm tapers and 150 x 125mm bull nosed to BS 7263 Pt 1 on 275 x 150mm grade ST1 concrete bed and with 150 x 100mm and 150 x 200mm backing respectively.
- Precast concrete edgings shall be 150 x 50 type EF to BS 7263 Pt 1.
- Concrete grade ST1 shall be used as protection to public utilities.
- Where a crossing involves excavation in a highway verge, then the excavated surface shall be treated with an appropriate total residual weedkiller.
- Where the proposed access involves the crossing of an existing ditch, a pipe with a minimum diameter of 225mm, with appropriate headwalls, will be required, and appropriate granular bedding and concrete surround shall be provided.
Please note: In cases where a crossing is required at an access to premises attracting heavy commercial traffic, the specification to be employed shall be adapted for the location in question. Advice on the modified specification will be available on request.