CONTRACT NOTICE – NATIONAL

1 Authority Details

1.1

Authority Name and Address

1.2

Address from which documentation may be obtained

1.3

Completed documents must be returned to:

2 Contract Details

2.1

Title

Core Valley Lines - Caerphilly Tunnel Ground Investigation

2.2

Description of the goods or services required

Transport for Wales (TfW) have instructed Amey Infrastructure Wales (AIW) to undertake an assessment of the condition of the track formation through Caerphilly tunnel due to historic ponding of waters within the tunnel.

The tunnel is located on the Cardiff to Rhymney line (CAR) between 6m06ch and 7m12ch with a length of 1,731m.

Contractors are required to undertake the following works:

1.

Undertake all investigation works to NR/L2/TRK/4239.

2.

Prepare risk assessments and task briefs for the works.

3.

Provide a welfare unit for the works.

4.

Provide security to the compound during out of hours, if required by the contractor.

5.

Provide trolleys for transporting materials/plant to the place of works.

6.

Undertake Automatic Ballast Sampling (ABS) to rock head (assume 1m depth) at 25m centres in both the up and down road. Sampling at both tunnel portals to be undertaken

7.

Obtain laboratory analysis of the samples for the extent of silts within the track formation.

8.

Backfill sampling locations with a sand / cement mix, plus 200mm of ballast under bottom of sleeper, as defined in NR/L2/TRK/4239.

9.

Prepare a factual report.

NOTE: To register your interest in this notice and obtain any additional information please visit the Sell2Wales Web Site at https://www.sell2wales.gov.wales/Search/Search_Switch.aspx?ID=159101.

The buyer has indicated that it will accept electronic responses to this notice via the Postbox facility. A user guide is available at https://www.sell2wales.gov.wales/sitehelp/help_guides.aspx.

Suppliers are advised to allow adequate time for uploading documents and to dispatch the electronic response well in advance of the closing time to avoid any last minute problems.

2.3

Notice Coding and Classification

2.4

Total quantity or scope of tender

The objective of this scope is to allow tenderers to fully understand the required works and the planned access such that they can provide a schedule of rates for the works and their likely productivity in delivering the works. This will allow AIW to appoint a preferred contractor for the works, prior to the final specification being issued by the consultants.

3 Conditions for Participation

3.1

Minimum standards and qualification required

Successful subcontractor will require verified ConstructionLine Gold and RISQS memberships, with works specific RISQS RICCL codes in place.

4 Administrative Information

4.1

Type of Procedure

Single stage

4.2

Reference number attributed to the notice by the contracting authority

N/a

4.3

Time Limits

4.5

Language or languages in which tenders or requests to participate can be drawn up

4.6

Tender Submission Postbox

5 Other Information

5.1

Additional Information

(WA Ref:159101)

The buyer considers that this contract is suitable for consortia bidding.

5.2

Additional Documentation

5.3

Publication date of this notice