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Staff says directional bore could save roughly $42,000 on Highway 11 crossing
Summary
City staff told the council a switch from jack-and-bore to a directional bore for the Highway 11 water-main crossing could reduce costs from about $65,000 to $23,000, but DOT approval and state bid-law caps on change orders must be resolved before proceeding.
Paul, a city staff member, told the council the original jack-and-bore approach for crossing Highway 11 would cost in the neighborhood of $65,000. He presented an alternative — a directional bore with a steel casing and an auger pull-through method — that he estimated would reduce the cost to about $23,000, producing roughly $42,000 in savings.
Paul cautioned the council that DOT approval for the casing method is required and that state bid-law limits on cumulative change orders (he cited a threshold in the neighborhood of $75,000) could affect procurement steps, even though the net contract amount would be reduced. He said he will verify casing specifications and coordinate DOT approvals before advancing any change order for council action.
