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Remove/Breach Dam
Instream Passage Improvement | 85
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Definition
Work that facilitates fish passage over a natural (e.g., beaver) or human-made dam by breaching or removal. If the dam is part of a diversion, use WE# 84: Remove/Install Diversion.
Deliverables (recommended)
Rules and Examples (work element scenarios and associated rules)
Rule 1: NEPA, ESA, permitting, and environmental compliance work should be split
out under WE# 165, Produce Environmental Compliance Documentation.
Example:
WE: Remove/Modify Dam
WE Title: Take out dam on Buffalo Creek, river mile 3.
WE: Produce Environmental Compliance Documentation
WE Title: Obtain local permits and ESA compliance associated with taking out the Buffalo Creek dam.
Rule 2: If pre-implementation work is minor, it may be lumped in with the Remove/Modify Dam work element. If pre-implementation work is significant, or if the project is complex and/or large-scale (e.g., capital construction), work that enables or facilitates actual implementation (e.g., landowner contacts, land access or purchase, feasibility, design, and construction management) will likely be separate work elements.
Example:
Option 1 (lumping)
WE: Remove/Modify Dam
WE Title: Breach dam on Buffalo Creek
WE Description: Coordinate with landowner and permitting agencies to discuss timing then arrange for equipment to breach dam.
Option 2 (splitting)
WE: Remove/Modify Dam
WE Title: Breach Big Ugly Dam on Lowry River
WE: Coordination
WE Title: Coordination for Lowry River Dam Removal project
WE Description: Hold a series of meetings with local landowners, fish management and regulatory entities to agree on approach and timing for breaching Big Ugly Dam on Lowry River.
WE: Produce Plan
WE Title: Conduct feasibility studies for breaching Big Ugly Dam.
Rule 3: If removing/modifying dam is part of a connected effort to correct multiple problems at a single location, each with different metrics, split out each as a separate work element. The exception is when removing a dam AND installing a fish passage structure and BOTH occur at the time and at the same site. In this situation, Remove/Modify Dam should usually be included as a milestone under WE 184 Install Fish Passage Structure, rather than added as a separate WE. This eliminates the possibility of double counting metrics. Building from example in Rule 2, breaching Big Ugly dam could be part of a comprehensive restoration project, that could include:
Example:
WE: Install fish passage structure
WE Title: Install 2 weirs below and one above breached Big Ugly Dam to facilitate fish passage.
WE: Increase Instream Habitat Complexity
WE Title: Add J-hooks, large woody debris, and riprap around breached Big Ugly Dam
WE Description: J-hooks and LWD will improve channel morphology and riprap will stabilize or maintain the streambank.
WE: Improve Road
WE Title: Regrade and gravel existing road near breached Big Ugly Dam
WE Description: Regrading and gravelling will help eliminate erosion and runoff into Lowry River.
WE: Plant Vegetation
WE Title: Plant vegetation on banks of Lowry River for stabilization
Milestones (may include)
- Environmental compliance requirements complete
On-the-ground work associated with this work element cannot proceed until this milestone is complete. Milestone is complete when final documentation is received from BPA environmental compliance staff (completion can be based on pre-existing environmental documentation from BPA).
- Conduct feasibility studies
- Design a breaching plan
- Mobilize crew
- Supplies/materials/equipment delivered
- Instream work (if required) complete
- Site restoration complete
- Punch-list inspection items complete
Metrics
| Metric |
Metric Type |
Metric Guidance |
Metric Required |
Metric Type |
Metric Precision |
| 1441 |
# of miles of habitat accessed to the next upstream barrier(s) or likely limit of habitable range |
Self-Explanatory |
Required |
number |
0.01 |
| 1563 |
# of barriers in the freshwater zone |
The count of barriers addressed is the total number of fish passage barriers removed at a specified worksite. This is not the number of individual fish passage structure types but the structural blockages as a whole that may be quantified by one Latitude and Longitude and is used to calculate the distance upstream to the next barrier. A barrier in PISCES will be defined as passage barriers created from increased sediment from mine tailings that result in a passage impairment from subsurface flows. |
Required |
number |
1.0 |
| 1564 |
# of barriers in the estuarine zone |
The count of barriers addressed is the total number of fish passage barriers removed at a specified worksite. This is not the number of individual fish passage structure types but the structural blockages as a whole that may be quantified by one Latitude and Longitude and is used to calculate the distance upstream to the next barrier. A barrier in PISCES will be defined as passage barriers created from increased sediment from mine tailings that result in a passage impairment from subsurface flows. |
Required |
number |
1.0 |
Location Guidance
Identify point where removal or modification took place.
Environmental Compliance
Applicability and status of the following environmental compliance requirements can be found on the Environmental Compliance tab for that work element in your SOW for all 2007 contracts forward. BPA's Environmental staff will update and maintain this information in Pisces in real time, so that you can check the status of environmental compliance on your project at any time. Note: Many of the fields are set to auto-load in Pisces, but the settings will be reviewed by BPA's Environmental staff prior to the contract being finalized, and may be revised depending on the specific circumstances. National Environmental Policy Act (NEPA)
NEPA coverage for this work element will be identified by BPA's Environmental Compliance Lead. Endangered Species Act (ESA)
ESA consultation is typically required for this work element. National Historic Preservation Act (NHPA)
NHPA Section 106 consultation is typically required for this work element which often includes a cultural/historic resource survey by a qualified archaeologist. Public Involvement
Public involvement is typically required for this work element. The contractor should work with BPA Environmental staff to document previous or ongoing outreach efforts associated with this work or to develop a public involvement plan.
Associated Work Elements
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