Southwest Colorado Water Managers Brace for Cuts as Snowpack Falls Short

Water managers overseeing the Dolores Project and McPhee Reservoir began preparing formal plans to reduce water deliveries this season after mountain snowpack and spring runoff across Southwest Colorado came in well below historical norms.

The shortfall puts pressure on a system that agricultural operations, municipalities, and tribal water users across the region depend on each irrigation season. McPhee Reservoir, the centerpiece of the Dolores Project and one of the largest water storage facilities in the Colorado River Basin, serves as the primary buffer when snowpack underperforms — but below-normal accumulation limits how much that buffer can absorb.

Regional water managers moved to get ahead of the cuts rather than react to them mid-season, a posture that reflects hard lessons from previous dry cycles in Southwest Colorado. Early planning allows irrigation districts and farm operations to adjust planting decisions, prioritize higher-value crops, and negotiate delivery schedules before the peak demand window arrives.

The Dolores Project draws from the San Juan Mountains, where snowpack levels this year have tracked below the averages that water managers use to model runoff and reservoir inflow. When snowpack underperforms, the chain of consequences runs quickly: lower inflows to McPhee mean tighter allocations, and tighter allocations force tradeoffs that ripple across Dolores County and neighboring communities that depend on the same system.

Officials had not yet announced specific delivery reduction percentages as of late March, but the preparation of formal curtailment plans signals that meaningful cuts are coming. How deep those reductions will go depends largely on whether late-season storms deliver measurable snowpack to the upper Dolores watershed before the spring melt window closes.