Project Name: Black Bear Hydro Penobscot River Fish Passage Projects

Summary: Design of new fish passage facilities at three sites

Client: Black Bear Hydro Partners

Project Location: Orono, Stillwater, Milford, ME

Project Size: 6.8 MW

Services Provided:
• Hydrologic and Hydraulic Analysis
• Upstream and Downstream Fish Passage Feasibility and Design
• 3D CFD Hydraulic Modeling
• Equipment Selection & Procurement
• Gates and Water Control Design Dam Rehabilitation Design
• Bid Specifications and Drawings Construction Services

Project Timeframe: 2009 - 2014

Relationship with Client: Since 2009

Client Needs:
As one component of one of the nation’s largest basin-wide river restoration projects, Black Bear Hydro Partners (BBH) is enhancing fish passage at three of its facilities on the Penobscot River while also increasing energy production. These are challenging projects undertaken with limited space and a compressed schedule.

Kleinschmidt Solution:
Kleinschmidt designed upstream and downstream passage facilities at three sites as part of the
Penobscot River Restoration Project. Downstream Passage included modification of the intakes at two existing hydro stations at Milford and Stillwater as well as new angled rack systems for two new powerhouses at Stillwater and Orono. Upstream passage included a state of the art fish elevator on the river’s main stem at Milford and a smaller elevator at Orono on the Stillwater Branch. For both upstream and downstream passage, Kleinschmidt developed conceptual designs, engaged in agency consultation, provided regulatory and permitting support, performed final design, and provided construction support. Additionally, at both the Orono and Stillwater projects, Kleinschmidt mapped wetlands and significant wildlife habitats, made qualitative observations with respect to mussel habitat, vegetation, hydrology, microtopography, and other relevant ecological and physical features necessary to evaluate impacts of projects on ecological resources, and completed a survey for rare plants.

Client Benefits:
Kleinschmidt’s multi-disciplinary team of engineers, scientists, and regulatory specialists developed novel solutions to deliver multiple projects with numerous site constraints within a complex regulatory environment. By working closely and cooperatively with BBH, listening to their needs and incorporating their ideas, Kleinschmidt was able to meet a challenging schedule. The fishways were constructed on schedule and were operational for the Spring 2014 migration.