St Alkmunds Bridge – UK
acdc sheds new light on Saint Alkmund’s Way Cycle and Footbridge
acdc’s COGLED luminaires have been used to create a stunning effect on Saint Alkmund’s Way Cycle and Footbridge. The bridge provides a direct link over the A601 between Derby city centre and St Mary’s church
Opened in 2007, the bridge was originally fitted with 40 fittings integrated into the panels of the bridge to produce a wave of colours (RGB) and a projection of sound. However over the years this has ceased working due to a failure of the equipment, ingress of water and vandalism in addition to the existing illumination levels had become insufficient, acdc luminaires were used to improve the poor quality lighting on the footbridge, which was coming to the end of its serviceable life.
Viewed by an estimated 1,500 pedestrian and 70,000 motorists every single day, St Alkmunds Bridge is one of Derby’s most prominent bridges. It was originally a joint design project by the local council and local artist Denis O’Connor. The bridge design collaboration was inspired by the traditional silk route through the city and the artwork – the loom, silk strands and bobbins which adorns the bridge are reflected in Mr O’conors design.
The installation of the new LED lights on St Alkmund’s Way footbridge is funded by a Section 106 agreement, to give additional funding to enhance the area nearby. The agreement will finance the cost and installation of the light fixtures, the cost of electricity, the agreement also includes the maintenance by Balfour Beatty under an that runs until 2032.
The project came with a challenging brief that included an unusual lighting effect that could be triggered into different lighting colours by the movement of people. Following removal of the existing lighting, acdc’s COGLED luminaires were installed incorporating the acdc Magna and Eclipse. Magna is an IP67 rated compact, in-ground, triple LED marker light & wallwash luminaire delivering 350lm. Also IP67, Eclipse is a micro floor or wall recessed LED luminaire with eyelid option for minimal glare, delivering 90lm. The LED fittings were installed as part of a system incorporating the RGB colour model and a DMX controller. The RGB colour model is an additive colour model in which red, green and blue light are added together in various ways to reproduce a broad array of colours, which in this case is to produce a wave effect on the bridge.
Needless to say, Derby Council is delighted with the scheme which has resulted in a substantial energy savings, a long maintenance free life, higher levels of illumination and an aesthetically stunning bridge that has had a fantastic response from users.