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

Pont Ffordd Cadfan, Tywyn - Major Maintenance

2.2

Description of the goods or services required

6802 - Pont Ffordd Cadfan

Major Maintenance of highway bridge crossing over narrow gauge railway on Cadfan Road, Tywyn, Gwynedd. LL36 9ED and is

located within a residential area with houses close to the bridge and Penybryn Primary School 100m from the bridge

O.S. Grid ref 258951E 300721N

The majority of the bridge is constructed from brick with a steel trough and concrete infill deck . The brige is 10.4 m wide, 3.8m

skewed span and the soffit of the bridge deck is 3m above the track bed.

There are two independent metal footbridges either side of the highway bridge to carry pedestrians over the railway. At least one of

these footbridges need to remain open at all time

The works include

1st Phase

Erect and maintain Road closure traffic management and diversion signs during February school half term (February 19 to 27).

Remove the road construction (approx. 375mm thick over the exiting bridge deck)

Carefully expose the gas main and LV power cable crossing on top of the bridgedeck.

Using hand tools remove the weak concrete surrounding the electric duct

Surround all utility assets with in-situ concrete2.2

Expose the ends of the concrete bridge deck and the sewer passing through the deck

Clean and prepare the top and the ends of the existing bridge deck and base of brick parapets

Apply approved waterproofing system on top and the ends of the bridge deck

Reconstruct the road over the bridge deck

Road marking (double yellow and white lines)

There will be regular train services on the narrow gauge railway and the above works must be done without affecting the railway.

2nd Phase February 28th onwards

Works to the bridge soffit

Mechanically de scale the surface of the steel troughs and edge beams

Grit blast and prepare the steel surface

Coat the steel with heat resistant epoxy system and protective layers capable of resisting the heat, steam and chemicals from the

train exhaust

The railway line under the bridge can be closed to trains from Monday to Friday each week during March but the line must be

cleared and reopened to allow train services every Saturday and Sunday.

Access is on foot from Pendref Station level crossing which is 220m from the bridge.

Contractor may negotiate directly with Tal y Llyn Railway regarding hiring trollies that fit the narrow gauge railway or arrange for

plant and materials to be delivered on train flatbed to site.

All staff will need to attend a railway induction by the railway company

NOTE: The authority is using eTenderwales to carry out this procurement process. To obtain further information record your interest on Sell2Wales at https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=117024

2.3

Notice Coding and Classification

2.4

Total quantity or scope of tender

3 Conditions for Participation

3.1

Minimum standards and qualification required

4 Administrative Information

4.1

Type of Procedure

Single stage

4.2

Reference number attributed to the notice by the contracting authority

6802

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:117024)

5.2

Additional Documentation

5.3

Publication date of this notice