Eagle River: Cross Creek to Gore Creek

Current and Historical Drivers of Degradation

Sensitive fish taxa are largely absent due to water quality impacts from the Eagle Mine. Ambient metals concentrations exceed relevant water quality standards, resulting in a Monitoring and Evaluation (M&E) listing and only partial/seasonal attainment of standards.The growth and development of juvenile salmonids is impacted by metals.

Flows are altered by upstream TMDs and reservoirs. The frequency of peak flows equivalent to the natural 1-in-4 year flood declined significantly due to water use and management. Peak flows during typical and dry years declined 24-30% respectively. Total annual flow volumes in dry years declined 32% when compared to natural historic conditions.

Development in the Town of Minturn results in significant alteration to sediment transport continuity, lateral floodplain extent, and physical habitat structure in the stream channel.

Report Card