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Navvies Bridge

Located in Cumbria, the Navvies Bridge crosses the River Derwent, providing a link for pedestrians and cyclists between Northside and Workington Town Centre. To illuminate the bridge deck 58 LED luminaries are mounted within the stainless steel rail section that forms part of the parapet handrail. A manual dimming system enables illumination levels on the bridge deck to be increased or decreased as necessary.

Located in Cumbria, the Navvies Bridge is a single span construction that crosses the River Derwent. It provides a link for pedestrians and cyclists between Northside and Workington Town Centre. To illuminate the bridge deck Chromatica manufactured and installed 58 LED luminaries into the stainless steel rail section that forms part of the parapet handrail. One luminaire is mounted in every other 3M rail on both sides of the bridge. Luminaires on both sides of the bridge are arranged in a staggered formation.

A low voltage harness system runs inside each rail. The harness system is supplied with 29.0V DC from AC/DC power supplies mounted inside feeder pillars, one located at each end of the bridge.

Individual LED drivers situated inside the rail section provide LED drive current to each luminaire. Drivers are self-compensating to allow for DC system volt drop, and should always provide the necessary current and voltage requirements to ensure the optimum operation of luminaries.

The complete installation may be manually dimmed to increase or decrease illumination levels as necessary. Manual dimming is achieved by the simple adjustment of a rotary potentiometer installed with the AC/DC power supplies.

Luminaires are located in the rail slots to give a flush finish and are retained by stainless steel springs held within the rail section. Stainless steel screws pass through the luminaire front cover into the stainless steel springs holding the luminaire in place.


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