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Alamo approves backfill and compaction work for Laguna Park detention pond amid erosion concerns
Summary
The City of Alamo approved a labor contract to compact and grade Laguna Park detention pond after staff said a TriMed proposal priced the four-phase backfill and compaction at $150,000; Hidalgo County Drainage District No. 1 will donate fill material but not hauling, and commissioners raised erosion and maintenance concerns.
The City of Alamo commission approved a labor contract to complete backfill and compaction work at Laguna Park detention pond, a step staff said is intended to improve slope stability and maintenance access.
Staff member (speaker 13) told commissioners the contractor TriMed proposed a total project cost of “150,000 to complete all 4 phases,” and that an earlier dewatering line-item credit (about $59,825.69) reduces the city's immediate labor cost to roughly $90,001.74. The city expects Hidalgo County Drainage District No. 1 to provide the fill material at no charge but said the district will not provide hauling.
Commissioners and staff debated erosion control and whether to include hydro-seed (hydromulch) now or later. Staff member (speaker 2) said hydromulch "would help" reduce erosion but that the hydromulch cost had not been estimated in the contract. Commissioner (speaker 10) expressed concern about spending on fill without a finished park plan, saying a $150,000 load of dirt could wash away without erosion control and a defined maintenance plan.
Staff described operational limits: some pond slopes currently approach 1:1 and are too steep for maintenance equipment. They estimated compacting the imported dirt would take about two to three months of continuous deliveries and work. Staff also flagged hauling as a separate procurement; later the commission authorized the city manager to negotiate hauling in a separate item.
The motion to approve the labor and compaction work carried by voice vote. The commission also approved a related authorization for hauling and delivery up to $200,000 in a later agenda item.
