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Staff outlines County Line Road plan; canal company seeks full culvert replacements, county favors unit pricing
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Summary
Bonneville County staff and commissioners discussed scope and timing for a seven-mile County Line Road project, including a canal company request to replace all culverts with new pipe, a $1,000,000-per-mile high-level estimate, and a staff request that canal owners respond by April 3 to keep the project on schedule.
County staff briefed commissioners on March 10 about coordination and scope options for the County Line Road project, a roughly seven-mile corridor where canal-company encroachments and infrastructure needs are constraining design and schedule.
"They want all of the culverts in the whole stretch to be replaced with brand new pipe," Public Works Director said, summarizing Harrison Canal Company's request. Staff said they were uncomfortable with blanket replacement if existing concrete culverts are in good condition and proposed putting unit prices into the bid documents so contractors would replace pipe only where excavation shows it is damaged.
The canal company also requested detailed drawings showing where clay and excavated materials would be placed and asked to review pullout designs. Staff said JUB would revise specifications and provide more detailed plans and pullout drawings for the canal companies to review.
Staff described the full corridor as about seven miles and recommended an initial first-year target of roughly 3.5 miles (to the point where Harrison Canal Company's jurisdiction ends). The original high-level cost estimate discussed at the meeting was about $1,000,000 per mile. Commissioners directed staff to provide the drawings and asked that the canal companies respond by April 3 so the county could proceed to bid if approvals were returned in time.
Staff cautioned that bridge work near 85th East should be handled as a separate project and would require a separate discussion and rate decision by the commission. Other active road updates reported at the meeting included: contractors ripping asphalt and beginning excavation on Sand Creek (girders expected in March), Little Shame Creek backfilled and currently passable, and Bridal excavation inspections scheduled around March 20 with Triple J expected to inspect and possibly begin work.
Staff also discussed holding off on public posts about road openings until roads are reliably dry to avoid posting premature status updates if weather causes delays.
