Highways engineering services

Tender description

The services to stock of approximately 78 highway structures. The stock consists of road-over-road bridges, road-over-rail bridges, pedestrian walkway-over-road bridges, pedestrian subways and a network of service subways. The network of service subways are defined as confined spaces and a permit to work procedure is operated. The main service to be provided: 1) The planning, inspection and condition monitoring; 2) Maintaining and updating the City of London’s web-based bridge database; 3) Development of revenue maintenance programmes; 4) Implementation of the annual revenue maintenance programmes. The asset management and operation of 5 bridges over the River Thames and their associated approach structures is required. These consist of: Tower Bridge, London Bridge, Southwark Bridge, Millenium Bridge, Blackfriars Bridge. The City of London, as trustees to the Bridge House Estate Trust, is responsible for the asset management and operation of 5 bridges over the River Thames and their associated approach structures. The services to be provided relate to the inspection and asset management of the following structures, on behalf of the City: — Tower Bridge, — main river spans (including twin-leaf bascules) and high-level walkways, — north approach viaduct structures, — south approach viaduct structures, — London Bridge, — main river spans, — south approach vaults, — duke street hill footbridge, — London Bridge Staircase, — Southwark Bridge, — main river spans, — north approach vaults, — south approach Vaults, — park street bridge, — north pedestrian subway, — millennium bridge, — main river spans and north and south abutments, — blackfriars bridge, — main river spans, — north shore spans, — south pedestrian subway. The City undertakes a 6 year rolling programme of structural inspection which consists of a General Inspection (GI) of each bridge every 2 years and a more detailed Principal Inspection (PI) every 6 years. To it’s stock of approximately 78 highway structures but excluding the 5 river bridges referred to above. The stock consists of road-over-road bridges, road-over-rail bridges, pedestrian walkway-over-road bridges, pedestrian subways and a network of service subways. The consultant should note that the network of service subways are defined as confined spaces and a permit to work procedure is operated. The main service to be provides consists of the following: 1) The planning, inspection and condition monitoring of the stock of highway structures; 2) Maintaining and updating the City of London’s web-based bridge database (using Bridgestation) and log of outstanding maintenance works; 3) Development of revenue maintenance programmes and budget estimating; 4) Implementation of the annual revenue maintenance programmes, which include scheme development/design, preparation of tender documents and/or work schedules, tender evaluation, site supervision and account certification. Additional provisional services to be provided shall include the following: 5) Inspection of bridges/structures in the City’s Open Spaces; 6) Principal designer duties in relation to the Construction (Design and Management) Regulations 2015; 7) Structural load assessments and investigations; 8) Project evaluation, feasibility and option studies of capital projects; 9) Assist in the development of the City of London’s asset management plan for highway structures; 10) ‘Ad hoc’ structural engineering consultancy services/advice, where required.