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Springdale water utility: existing lines fall short of fire-flow needs for proposed hangar expansion
Summary
Springdale Water Utilities staff told the Airport Commission that a 6-inch line serving the airport delivers roughly 1,000 gallons per minute—below a 1,500 gpm minimum often required for hangar expansions—and outlined upgrade options, funding limits and next steps for further modeling.
Springdale Airport commissioners heard detailed hydraulic modeling on Sept. 18 showing the airport’s existing 6-inch water main cannot deliver the fire flow likely required to support proposed hangar expansions.
Springdale Water Utilities staff engineer Rick (last name not specified) told the commission the hydrant at the end of the existing 6-inch line produced “about a thousand gallons plus or minus per minute” in field tests and that an 8-inch replacement would raise flow only slightly—still short of the 1,500-gallon-per-minute threshold the commission discussed for expanded hangars.
The presentation combined field flow tests and computerized hydraulic models. Rick outlined several reinforcement scenarios—upsizing lines on Powell Street, interconnecting with larger mains to the west and a longer bore from a 16-inch line on Old Missouri Road—but said costs and construction complexity vary widely. He told commissioners a 12-inch replacement along the full route would add…
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