Albeni Falls Dam Fish Passage Project, Pend Oreille River, Bonner
Total Page:16
File Type:pdf, Size:1020Kb
Evan Lewis , Chief, Environmental and Cultural Resources Branch 01EIFW00-2018-F-0259 US Army Corps of Engineers, Seattle District Albeni Falls Dam Fish Passage Facility Table of Contents BACKGROUND..................................................................................................................... 4 Introduction .......................................................................................................................... 4 Consultation History.............................................................................................................. 4 BIOLOGICAL OPINION ........................................................................................................ 5 Description of the Proposed Action ........................................................................................ 5 Action Area ........................................................................................................................ 5 Proposed Action.................................................................................................................. 6 Construction................................................................................................................. 8 Operation and Maintenance of Facility .........................................................................14 Analytical Framework for the Jeopardy and Adverse Modification Determinations ................18 Jeopardy Determination .....................................................................................................18 Adverse Modification Determination ..................................................................................19 Status of the Species and Critical Habitat ..............................................................................20 Bull Trout ..........................................................................................................................20 Listing Status ..............................................................................................................20 Reasons for Listing and Emerging Threats ...................................................................21 Species Description .....................................................................................................23 Life H istor y ................................................................................................................23 Population Dynamics ..................................................................................................24 Status and Distribution ................................................................................................27 Conservation Needs.....................................................................................................33 Federal, State, and Tribal Conservation Actions Since Listing ......................................35 Contemporaneous Federal Actions ...............................................................................35 Bull Trout Cr it ica l Habitat ..................................................................................................36 Legal Status ................................................................................................................36 Conservation Role and Description of Critical Habitat ..................................................38 Current Rangewide Condition of Bull Trout Critical Habitat .........................................39 Environmental Baseline of the Action Area ...........................................................................40 Status of the Bull Trout in the Action Area...................................................................41 Status of Bull Trout Critical Habitat in the Action Area ................................................45 Effects of the Proposed Action..............................................................................................47 1 Evan Lewis , Chief, Environmental and Cultural Resources Branch 01EIFW00-2018-F-0259 US Army Corps of Engineers, Seattle District Albeni Falls Dam Fish Passage Facility Beneficial Effects to Bull Trout ..........................................................................................47 No Effect to Bull Trout ......................................................................................................47 Insignificant and Discountable Effects to Bull Trout............................................................48 Effects of the Proposed Action on Bull Trout ......................................................................49 Effects of the Proposed Action on Bull Trout Critical Habitat ..............................................54 Cumulative Effects.............................................................................................................56 Conclusion ...........................................................................................................................58 Bull Trout ..........................................................................................................................58 Bull Trout Cr it ica l Habitat ..................................................................................................58 Incidental Take Statement.....................................................................................................58 Form and Amount or Extent of Take Anticipated ................................................................59 Effect of the Take ..............................................................................................................60 Reasonable and Prudent Measures ......................................................................................60 Terms and Conditions ........................................................................................................60 Conservation Recommendations ...........................................................................................62 Reinit iat ion Not ice ...............................................................................................................62 3. LITERATURE CITED ......................................................................................................63 3.1 Published Literature .......................................................................................................63 3.2 In Litteris References .....................................................................................................72 3.3 Personal Communications ..............................................................................................72 List of Table s Table 1. Construction schedule for the AFD Fish Passage Facility............................................ 9 Table 2. Designated bull trout critical habitat by state. ............................................................37 Table 3. Bull trout redd counts from tributaries of Lake Pend Oreille Basin. ............................44 2 Evan Lewis , Chief, Environmental and Cultural Resources Branch 01EIFW00-2018-F-0259 US Army Corps of Engineers, Seattle District Albeni Falls Dam Fish Passage Facility List of Figures Figure 1. Albeni Falls Dam. .................................................................................................... 7 Figure 2. Layout of proposed fish passage facility.................................................................... 8 Figure 3. Approximate locations of isolation devices ..............................................................12 Figure 4. Location of the six bull trout Recovery Units. ..........................................................28 Figure 5. Status assessment tool scores for each of the six bull trout recovery units.. ................33 Figure 6. Expected area of impacts from underwater blasting ..................................................51 3 Evan Lewis , Chief, Environmental and Cultural Resources Branch 01EIFW00-2018-F-0259 US Army Corps of Engineers, Seattle District Albeni Falls Dam Fish Passage Facility BACKGROUND Introduction The U.S. Fish and Wildlife Service (Service) has prepared this Biological Opinion (Opinion) of the effects of the Albeni Falls Dam (AFD) Fish Passage Project (Project) on bull trout (Salvelinus confluentus) and its designated critical habitat. In an October 25, 2017, email (received on the same day), the U.S. Army Corps of Engineers (Corps) requested formal consultation with the Service under section 7 of the Endangered Species Act (Act) of 1973, as amended, for proposed implementation of the Project. The Corps determined that the Project is likely to adversely affect bull trout and “may affect, but is not likely to adversely affect” designated bull trout critical habitat. As described in this Opinion, and based on the Biological Assessment (Corps 2017, entire) developed by the Corps and other information, the Service has concluded that the action, as proposed, is not likely to jeopardize the continued existence of bull trout or result in the destruction or adverse modification of its designated critical habitat. Consultation History The Corps, Bonneville Power Association, and Bureau of Reclamation have completed several iterations of section 7 consultation for the operation and maintenance of the Federal Columbia River Power System (FCRPS), of which AFD is a component, with both the Service (USFWS: 1998 and 2000), and with the National Marine Fisheries Services (NMFS: 1995, 1998, 2000, 2004, 2008, as supplemented in 2010 and 2014, the last currently in effect).