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Road & Bridge favors precast box culverts for East Salt Creek; 10-foot corrugated option cost estimated at $922,000
Summary
Road staff presented three drainage options for East Salt Creek, recommending precast box culverts as more durable; the larger corrugated 10-foot option was estimated at about $922,000, and commissioners discussed applying similar solutions at Natrona.
Road & Bridge staff outlined three engineering options to address East Salt Creek drainage: four 10‑foot corrugated pipes, precast 10‑foot box culverts similar to prior work, or multiple small 36‑inch culverts likely to wash out in extreme events. "The bigger, the 10 foot corrugated pipe is, 922,000 estimated," Road & Bridge staff said when discussing the larger corrugated‑pipe option, which also includes bridge and road work.
Staff recommended precast box culverts despite higher construction cost because they are less likely to wash out and are easier to re‑open after overtopping. Commissioners asked staff to examine applying the same approach at Natrona and to return with more detailed engineering and cost breakdowns; staff said some upstream engineering had been completed and that further site visits would be scheduled.
