Provision of Darfield River Bridge Re-waterproofing and Joints Replacement

Barnsley Metropolitan Borough Council (the Council) is looking to establish a Contract for Engineering and Construction work with a Provider for undertaking reactive maintenance. Darfield River Bridge (Barnsley Council Structure No: B3.225) is a single span simply supported concrete overbridge that carries A635, a two-lane single carriageway, over River Dearne, Barnsley.

The ''Scope of Work'' has been proposed as follows: - Traffic Management compliance with the Specification. - Pavement Design compliance with CD 236 Surface Course Materials for Construction. - Removal and replacement of existing verge and surfacing materials, waterproofing compliance with CD 358 Waterproofing and Surfacing of Concrete - Bridge Decks, kerbs and road marking for entire bridge deck and either side of the bridge deck as required. - Carry out topographical survey of the deck once surfacing is removed, condition survey as defined within the Specification and minor concrete repairs to bridge deck as required. - Minor concrete repairs to concrete deck compliance with Series 5700 of the Specification for Highway Works - Concrete Repair. - Removal and replacement of the bridge deck expansion joints on a like-for-like basis (ETAG 032: Part 2 - Buried expansion joint / BD 33: Type 1 - Buried joint under continuous surfacing and ETAG 032: Part 3 - Flexible Plug joint / BD 33: Type 2 - Asphaltic Plug joint) subject to the surfacing depth requirement following the deck survey. Otherwise, the Contractor shall propose a suitable joint type for Overseeing Organisation approval to include a watertight seal above both abutments including secondary drainage membrane compliance with CD 357 Bridge Expansion Joints.

The main proposed maintenance activities will include: - Remove existing surfacing and waterproofing on the carriageway and verges as per required and replace as defined within the Specification. - Remove road surfacing either side of the bridge deck and replace as required. - Carry out topographical survey of the deck once surfacing is removed, condition survey as defined within the Specification and minor concrete repairs to bridge deck as required. - Remove existing bridge deck expansion joint materials and install new joints as defined within the Specification. - Apply new sprayed waterproofing system as defined within the Specification. - Remove kerbs on the bridge deck and either side of the bridge deck as per required and reinstate on a like-for-like basis. - Remove footway material on either side of the bridge deck as per required and reinstate on a like-for-like basis. - Reinstate road markings on the bridge deck and either side of the bridge deck as required and on a like-for-like basis. Traffic management with a series of lane closure will be required for the Works with associated traffic control systems. Full details of the required Traffic Management shall be provided by the Principal Contractor in accordance with the construction programme as soon as is practi