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Lyon County adopts South Silver Springs drainage master plan to reduce flood risk
Summary
The Lyon County Board of County Commissioners voted 5-0 on March 19 to adopt the South Silver Springs Area Drainage Master Plan, a package of measures including homeowner standards, targeted culvert upgrades and a program to raise at-risk structures; staff will pursue FEMA funding where feasible.
Lyon County on March 19 adopted a drainage master plan aimed at reducing flash-flood risks in South Silver Springs, approving the move by a 5-0 vote.
James Springate of Wood Rogers, the county's contracted engineer, told the Board the plan models historic flash floods in the area — including events in 2017, 2020 and a recent April storm — and maps where water ponds behind raised infrastructure such as US 95 and the Union Pacific Railroad. Springate said the study identified more than 100 parcels that would experience at least six inches of interior flooding in a 100-year storm and proposed a multi-part strategy: adopt the ADMP into county review, publish standard details for homeowner measures…
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