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Staff outline evolving closure procedures and fuels‑management strategy after recent wind‑driven fires
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Summary
Open Space staff described new guidance and SOP work on hazard closures after two recent wind events, reported mixed compliance at different trailheads, and reviewed 2026 priorities for fuels management including targeted mowing, grazing, juniper removal and attention to the 0–300 ft home ignition zones.
Open Space staff used recent closure events in December and March to explain why the department is developing new standard operating procedures for hazard closures and a more systematic, zone‑based approach to fuels management.
Brian Anacker (science and climate resilience) and Jeff Haley (visitor experience and infrastructure) summarized the December closure — a system‑wide shutdown that saw strong compliance in some gated locations and a 92% drop in visitation at certain access points — and the March closure, which covered the western portion of the system and produced smaller visitation reductions and lower compliance at porous urban access points such as Chautauqua.
Staff emphasized that closure effectiveness depends on timing, infrastructure and public messaging: full closures are far easier to enforce where permanent gates and clear access points exist, and are harder where many small access points and trail connections make the system porous. Jeff Haley outlined interim tactics (variable message signs, rangers at access points, temporary barricades and tape) and said staff are documenting zones and staging needs so they can cost and prioritize infrastructure investments to improve closure reliability.
On fuels management, Paul Dennison (wildland fire senior program manager) outlined a multi‑distance strategy: homeowner defensible‑space measures in the first 0–100 feet, more aggressive fuel breaks and mowing/grazing in the 100–300 foot range near residences, and strategic treatments out to about 1,500 feet for ember‑risk reduction. He listed 2026 priorities including continued perimeter mowing and grazing pilots, juniper removal, targeted pruning and cross‑boundary coordination with HOAs and private landowners.
Trustees pressed for clearer public messaging about why closures occur and asked staff to quantify costs and staffing needs for more robust, repeated closures. Staff said they have roughly $4 million currently dedicated to wildfire resilience across city programs, plus grant funding targeted to cross‑boundary projects, and that more boots‑on‑the‑ground and temporary infrastructure would be the primary needs to scale up treatments.
Quote: "There is no single trigger that leads to a closure being recommended," Anacker said. "The policy group considers multiple factors and professional judgment when recommending a closure."
Next steps: staff will refine closure SOPs, hold additional workshops with peer agencies, develop cost estimates for infrastructure and gating in priority zones, and continue pilot cross‑boundary treatments this season.

