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Bonneville County engineers recommend relocating gas line under Sand Creek Bridge; commissioners take matter under advisement
Summary
Horox Engineers told Bonneville County commissioners that the existing Intermountain Gas pipeline conflicts with a proposed soil-reinforced abutment for the Sand Creek (49th North) bridge and recommended relocating the line because of safety and liability concerns. Commissioners voted to take the proposal under advisement and will issue a written decision next Tuesday.
Bonneville County officials on Jan. 27 reviewed engineering options for the 49th North (Sand Creek) bridge and heard a recommendation to relocate an Intermountain Gas pipeline that runs through the proposed abutment area.
Drew Mappen of Horox Engineers said the project team compared a soil-reinforced GRS-IBS abutment (which the engineers estimate would cost roughly $300,000 for the abutment) to higher-cost alternatives and concluded the existing pipeline sits in direct conflict with the proposed abutment. “We recommend … to have the gas line relocated and avoid any risk there,” Mappen said, citing both short-term construction hazards and long-term liability concerns.
Why it matters: the county’s preferred abutment type minimizes construction complexity and cost but,…
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