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Commission tables parking-lot expansion at 50 Zion Park Blvd, requests geotechnical report and drainage study
Summary
The Planning Commission tabled design-review approval for a parking-lot expansion at 50 Zion Park Boulevard and directed the DCD to require a site-specific geotechnical report focused on landslide and rockfall risk plus a surface-water drainage study; commissioners cited mapped hazard zones and public safety concerns.
The Springdale Planning Commission on July 1 tabled a design development review for expansion of a parking lot at 50 Zion Park Boulevard and requested that the town’s director of community development require a geotechnical report that addresses landslide and rockfall risk, along with a surface-water drainage study and verification of landscaping minimums.
Staff said the excavation associated with a retrospective grading permit occurred within 10–20% slopes and that Rosenberg Engineering provided a letter concluding the work "does not appear to pose any elevated risk" for the proposed excavation and rock wall construction. Commissioners noted, however, that the site sits adjacent to mapped 30% slopes and larger landslide/rockfall hazard areas. Nile Connelly said the grading permit had been approved but that DDR review may reasonably require further analysis because this is a hazard-study area.
Multiple commissioners and public commenters urged caution. One public commenter, who said he had spoken with local geotechnical and structural engineers, described the risks of cutting into the toe of a steep hill and urged further study; another commissioner recounted a recent conversation with the Utah Geological Survey expressing concern about parking in mapped slide zones. The applicant, Luke Wilson, said he had obtained a grading permit, performed surveys, and believes the newly created stalls lie outside the steepest slopes, but he acknowledged outstanding drainage and landscaping items staff had requested.
The commission’s motion to table asked the DCD to require a geotechnical report focused on landslide and rockfall risk, to ensure any recommended mitigations are followed, and to require submission of a surface-water drainage study. The commission also requested staff verification that landscaping and open-space requirements are met. The DDR will return to the commission after the requested studies are submitted and reviewed.
