DML is the UK’s leading contractor in the design, manufacture and installation of the mechanical and electrical equipment required for moveable bridges. Projects have been undertaken at Canary Wharf; the Selby suspension swing bridge; the Gateshead Millennium bridge and currently the Manchester Ship Canal. Proposals are currently being prepared for new bridges in Merseyside and Teesside.
Structures and components have been manufactured for major infrastructure projects in both the UK and overseas. In the UK the terminal 5 control tower was manufactured by DML and large manufactured structural components have been supplied for suspension bridges in Hong Kong and San Francisco.
DavyMarkham has a solid track record in the design, manufacture and commissioning of M&E systems for moving bridges. Our projects have included bespoke design for:
By working closely with artists, architects, consulting engineers and civil contracting companies, DavyMarkham can ensure the development of precision engineering solutions demanded of the large moving structures that a bridge represents.
We have the capability to design and supply the complete mechanical, hydraulic and electrical operating systems including:
We will also provide the following services:
Paddington Basin Development Corporation
Scope: 15m Span Helical Bridge
The Bridge was designed and engineered by DavyMarkham to a concept created by artist Marcus Taylor for the Paddington Basin Development Corporation, and installed at Paddington Basin.
The Footbridge retracts over an operating canal and takes the form of a glazed steel framed tube with a stainless steel helix, manufactured from circular hollow section superimposed around the outside of the specially designed glazing.
The Bridge is driven and counter-balanced by a powered trolley mounted on rails.
To give the appearance of the Bridge being screwed across the canal by the helix, the glazed tube rotates as the Bridge traverses forward and backward. The name of the Bridge derives from this action, and is therefore called “The Helix Bridge”.
HOCHTIEF (UK) Construction Ltd
Scope: Design, Manufacture and Install Twin Sails Bridge, Poole Harbour, Dorset
The Twin Sails Bridge provides a much needed second harbour crossing for Poole, connecting the town centre to Hamworthy, across the Backwater Channel. The eye-catching structure, reflecting Poole’s maritime heritage and inspired by yacht sails when in the open position, spans 139m, providing infrastructure for brownfield regeneration.
DavyMarkham designed, manufactured, assembled, shot blasted, painted and installed the mechanical equipment for this bascule bridge.
The company line bored and finish machined free issue moving span fabrications and two main cylinder lift pins and finish machined forged pivot pins to fit each moving span.
The two main pivot roller bearings, upper cylinder connecting pins with bearings and retaining plates were manufactured and assembled at DavyMarkham.
The two lower cylinder foundation brackets with connecting pins, bearings and retaining plates were also manufactured and assembled. Stainless steel foundation bolts – 16 off 75mm diameter by 4.75m long and 12 off 50mm diameter by 2.2m long were also supplied.
Kingston-upon-Hull City Council
Scope: Design, Manufacture of Wellington Street Bridge, in Kingston Upon Hull
The Scope of Supply incorporates the Design, Manufacture and sensitive refurbishment of the existing Structures, and the Supply of new Mechanical, Electrical and Hydraulic Equipment where necessary.
The Bridge is of the Double Leaf Asymmetrical Swing Type, built in the 1840’s during the Victorian Period. It spans a short waterway between the River Humber and the Marina and between Lock Gates at each end of the waterway. In the “open to road traffic” condition, it is orientated in an East-West direction. For the passage of water-going vessels, each Bridge Leaf slews through 90º such that the toe of each Leaf points North.
In the rehabilitation of this Two Leaf Victorian Swing Bridge, new Electric Slewing Drives have been added. These replace a 1980’s attempt at Electrification, and utilises as much as possible, the existing Gear Train left from the days of a Hand-Wound System.
Institute of Civil Engineers – The Historic Bridge & Infrastructure Awards 2007 – Commendation
British Urban Regeneration Association – Waterways Renaissance Awards 2009 – Historic Environment – Commendation