Post-flood restoration work was completed along the Left Hand Creek on the Brewbaker-Sorensson property in unincorporated Boulder County.
Creek restoration work was completed along Left Hand Creek on the Brewbaker-Sorensson property to repair damage from the 2013 flood and subsequent human interventions. This project restored the creek using a natural channel design approach. Restoration of the stream channel reconnected the stream with its floodplain and altered the channel morphology through adjustments of stream pattern, dimension, and profile. This was achieved by lowering the width-to-depth ratio of the stream; placement of in-stream bank stabilization and habitat structures, large wood and boulders; and restoring riffles and pool features. The design also included modifications to the bed and bank. Stream banks were stabilized using bio-engineering techniques like willow staking and large wood placement.
Boulder County teamed with North State Environmental and its subcontractors, Five Smooth Stones Restoration Services and AloTerra Restoration Services, to design and implement the creek restoration through a design-build contract.