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Commission approves contingency increase for SR‑71/91 interchange after differing site conditions
Summary
Staff told the committee that unanticipated subsurface cobbles, boulders and groundwater affected 10 of 13 bridge foundations, producing change orders and a projected contingency shortfall; the committee approved a roughly $2.3 million contingency increase to close out the project within the originally approved budget.
The Riverside County Transportation Commission committee approved an increase in the construction contract contingency for the SR‑71/91 interchange improvement project to address additional costs from differing site conditions encountered during foundation construction.
John Terracio, senior capital projects manager, said the construction contract originally awarded to Skanska USA Civil in October 2022 was for $120,500,000 with a 12% contingency ($14,460,000) for a…
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