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Council asks staff to test COBRA retrofits and pursue neighborhood lighting options on 3100 South
Summary
Staff presented options for streetlighting along 3100 South, including retrofitting existing Rocky Mountain Power poles with COBRA heads (estimated $5,000 per retrofit) or installing new decorative poles (~$17,000 each). Council asked staff to identify test sites, check brightness settings and return with costs; staff also identified 19 residential lights costing $97,000 that could be funded through MSD.
City staff and public-works representatives returned to council with lighting options for 3100 South and identified neighborhood-scale needs elsewhere. David Birkey summarized staff work with Ian Hartman and Rocky Mountain Power and noted two retrofit options: install a COBRA-style fixture on existing utility poles (cheaper) or install new, code-compliant decorative poles (more expensive).
"Ian thinks it's as little as $5,000," Birkey said of a COBRA retrofit per light, while bespoke new poles were quoted around $17,000 each (pole cost only). Councilmembers requested staff locate a few test installations so the body can judge lumen output and neighborhood impacts; members also asked staff to determine if existing COBRA fixtures are dimmed and whether output can be increased.
Separately staff identified 19 short residential lights (12-foot fixtures) with an estimated cost of $97,000; Birkey said MSD has about $300,000 in available funds and that Tamara (MSD) believes some unspent funding could be used. Council gave staff direction to pursue cost confirmations and test installations and asked staff to return with final cost and financing proposals before large-scale rollouts.
