Anchor sites There were no anchor sites identified in Maynard. Secondary branches No secondary branches were identified. . Riparian corridor Dimensions and location Describe the lineal dimensions and location of deciduous, coniferous, and open canopy. The first 2,000 lineal feet of Maynard Creek has good canopy cover (75%). However at 2,500 ft there is a 1,000ft reach with little to no harvest buffer which has resulted in extensive solar exposure. Again at 4,200ft a narrow harvest buffer exhibits heavy blow down loss which has also resulted in significant solar exposure. Each of these upslope impacts contribute to the temperature degradation observed in the mainstem of Rock Cr that have been described in this document as the sum total of the cumulative impacts occurring in tributaries just exactly like Maynard. Recruitment potential What is the recruitment potential and time frame for delivery to the channel? Riparian recruitment potential for Maynard Cr is good. Because the active channel width is only 6 ft , both deciduous and coniferous contributions from the riparian will be well retained and form functional instream wood complexity even at winter flows. Thermal problems Describe the relationship between riparian condition and thermal problems in the aquatic system. Include locations and causes. No temperature data was available for Maynard, but the solar exposure associated with the lack of riparian buffer associated with upslope harvest activity has been identified as a primary limitation for salmonids on the Rock Cr basin scale. Bear Creek (Rock Cr) assessment Bear Creek enters Rock Creek 670 ft upstream from Rock Creeks confluence with the mainstem . The confluence is in in downtown Vernonia. Migration barriers There were no adult migration barriers observed within the inventory.
Anchor sites There were no anchor sites identified in Maynard. Secondary branches No secondary branches were identified. . Riparian corridor Dimensions and location Describe the lineal dimensions and location of deciduous, coniferous, and open canopy. The first 2,000 lineal feet of Maynard Creek has good canopy cover (75%). However at 2,500 ft there is a 1,000ft reach with little to no harvest buffer which has resulted in extensive solar exposure. Again at 4,200ft a narrow harvest buffer exhibits heavy blow down loss which has also resulted in significant solar exposure. Each of these upslope impacts contribute to the temperature degradation observed in the mainstem of Rock Cr that have been described in this document as the sum total of the cumulative impacts occurring in tributaries just exactly like Maynard. Recruitment potential What is the recruitment potential and time frame for delivery to the channel? Riparian recruitment potential for Maynard Cr is good. Because the active channel width is only 6 ft , both deciduous and coniferous contributions from the riparian will be well retained and form functional instream wood complexity even at winter flows. Thermal problems Describe the relationship between riparian condition and thermal problems in the aquatic system. Include locations and causes. No temperature data was available for Maynard, but the solar exposure associated with the lack of riparian buffer associated with upslope harvest activity has been identified as a primary limitation for salmonids on the Rock Cr basin scale. Bear Creek (Rock Cr) assessment Bear Creek enters Rock Creek 670 ft upstream from Rock Creeks confluence with the mainstem . The confluence is in in downtown Vernonia. Migration barriers There were no adult migration barriers observed within the inventory.