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Parking Garages Bend, Oregon Parking Plaza

Holophane luminaires meet specific needs on
roof deck of Oregon parking plaza
LEDgend™ and Petrolux® LED fixtures control light, slash energy & maintenance costs

Set against a backdrop of snow-capped mountains, Bend Centennial Parking Plaza in downtown Bend, Oregon provides parking for shoppers and local businesses and offers valet parking for the adjoining Oxford Hotel. Because of the level of traffic within the 551-space garage and the Oxford Hotel’s upscale nature, city officials were concerned about the aesthetics of the lighting system selected for a recent retrofit on the structure’s roof deck.

Bend, Oregon Parking Plaza - LEDgend LEDBend Centennial Parking Plaza not only serves as a parking facility but it includes a 10,000 square-foot commercial area leased to three tenants, including Federal Express and the United States Post Office.  Construction of the Plaza was completed in 2006 as part of an effort to revitalize Bend’s downtown.

The garage’s roof deck was originally illuminated by 30 100-watt metal halide recessed wall mounted fixtures and 12 25-watt metal halide pole-mount luminaires. The fixtures were recently removed, however, when the city installed a 32-kilowatt solar system on the roof deck.
When selecting replacement lighting fixtures, the city could not install pole-mounted luminaires near the solar system because shadows cast by the poles as they traversed the panels would interrupt the circuitry on an entire string of panels. The city also wanted to reduce energy consumption since the solar panel and retrofit lighting projects were funded by a grant and rebate from the Energy Trust of Oregon.

After considering various options, the city replaced the previous 42 metal halide luminaires with eight LEDgend™ LED and six Petrolux® LED fixtures from Holophane, which saves the city 27,550 kilowatts each year.

“We selected the Holophane luminaires because we could efficiently light the roof deck and reduce energy and maintenance costs,” said Jeff Datwyler, former downtown manager for the City of Bend. “Downtown Bend also has a dark skies lighting code, which dictated that we limit the uplight and illumination on adjoining properties.”

Featuring an open canopy, the Type V Petrolux LED luminaires are ceiling mounted and fastened to the solar panel superstructure. The fixtures are angled downward to illuminate the garage’s center ramp and part of the upper deck on each side of the ramp.

Bend, Oregon Parking Plaza - LEDgend LEDEight pole mounted LEDgend fixtures with forward throw optics are mounted along the roof deck’s outside perimeter to illuminate the entire rooftop, with two new square steel poles installed to match the six existing poles used with the original lighting system. The 16’4” poles are mounted on a four-foot wall so they stand 20 feet above the garage deck, which has deterred vandalism.

“The previous luminaires were flush mounted in the concrete wall and we had a tremendous problem with kids breaking the fixture glass,” said Grant Burke, facilities manager for the City of Bend. “Fixture location also resulted in dark spots within the garage. A vehicle parked in front of a luminaire prevented the light from shining in other areas.”

Illumination levels are presently 2.4 footcandles, with luminaires controlled by a photocell. According to Datwyler, the parking garage adjoins a workforce housing facility with a four-story atrium facing the garage, which raised concerns about light trespass. The LEDgend fixtures include a louvered Uplight Shield to prevent light from shining into the atrium and onto other properties.

“The city has received very favorable comments about the lighting system—especially from frequent users,” Datwyler said. “The Holophane fixtures provide user friendly light distribution to create a safer environment. They are also weather tight, which allows them to withstand the temperature extremes common to this area.”

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