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Aldermen, staff discuss dark-sky standards and competitive lighting at Shaw Park
Summary
Council members and staff discussed dark-sky best practices for new lighting projects, noting broad compliance for fixtures but that dark-sky sports-lighting guidance may limit competitive play because the standard discourages "over-lighting" used for competitive-level games.
During the consent-agenda discussion on July 22, aldermen raised questions about how Shaw Park lighting projects will comply with International Dark-Sky Association best practices while still meeting competitive-sport lighting needs.
Anna (city staff) told the board the city is following dark-sky best practices for fixture shielding, minimizing light spill, curfews and lumen management. She explained that sports lighting presents a distinct challenge: some dark-sky guidance recommends limiting the "class of play" to recreational levels to avoid over-lighting that causes sky-glow and spill into neighborhoods.
Mayor McAndrew and several aldermen asked whether competitive-level lighting (for high school or collegiate matches) can be accommodated while meeting dark-sky standards. Staff said fixtures can be designed to reduce spill and lumens and that the design process will try to meet best practices, but that the dark-sky sports-lighting guidance specifically notes a tension between competitive-class lighting and strict dark-sky compliance.
Why it matters: Shaw Park includes competitive swimming, tennis and ball fields; decisions about lighting influence night-time use, neighborhood light spill and long-term maintenance plans. Staff said they are designing projects to meet dark-sky best practices where possible and that a larger conversation will be required for Shaw Park given the number of sports facilities in that park.
Ending No immediate policy change was adopted; staff said future lighting replacements at Shaw Park would be designed using dark-sky best practices while recognizing potential limitations for championship-level lighting.
