Is there a reason it can't just be managed for what it is? A great SMB fishery?
Somewhat centrally located in Berks Co right outside of the Reading city limits its cool water for an extended period into the summer, its 100% public riparian land, its access to major highways, and its width make it well-suited for the popular delayed harvest management program. Furthermore, the SMB population is marginal at best and was so at the time that the DH regs and direct trout stocking went into effect in the area shown in the video. The obvious decline was in redbreast sunfish where the limited suitable habitat occurred.
As for fishery resource diversity in a high demand fishing county, this stocked trout fishery fits the bill, as it is located downstream from a good, and popular, Big Bass reg SMB population in Blue Marsh Rs and upstream from a moderate to good SMB population in the Berks portion of the Schuylkill R. If anglers desire SMB fishing, near-by, better fisheries are readily available. Likely now adding to the SMB opportunities in the area, however, the dam just upstream from the Tully’s mouth was removed last year and this will be the first full year that the stream may see an influx of SMB (and other migrants) from the Schuylkill into selected segments of decent SMB habitat in the Tully’s approximately lower 1.25 miles, starting about a half mile below the DH Area.
The establishment of the DH Area, the initial multi-year fine tuning of Blue Marsh Rs dam operations to provide the coolest water possible for the longest extended period into the summer, the removal of the dam at the mouth of the Cacoosing Ck, which then added cooler water to the lower half mile of the DH Area and expanded wild trout habitat in the Cacoosing plus adding connectivity for fish migrations, the multiple Tully habitat improvement activities by multiple organizations (PFBC/TU and others) and the aforementioned removal of the dam close to the mouth of the Tully, which also enhanced safety, were more than just chance occurrences; most were products of long-term planning.
Evaluation of the feasibility of a rock ramp fishway at Grings Mill Dam, located about a half mile below the DH Area would be the next step as would be adding more shade, where necessary, along the Cacoosing. Plantings would be follow-up to Cacoosing work that I understand has already been accomplished by the Berks County Conservation District. Lehigh Regular can correct me if I am wrong. And as somewhat of a rarity, a stable source of grant funding for habitat, plantings, etc work in the Tully and Quitty drainage basins has been available about every three years with the grants being issued by the PFBC.