Comment Now on 8,000 Feet of Urban Stream Restoration in Rock Creek Park
Pinehurst Stream Restoration
National Park Service· Rock Creek ParkNPS Planning (PEPC) project page ↗
NPS PEPCWe track this on the agency’s own system of record, where most on-the-ground decisions live.
The agency is asking the public to comment by October 30, 2026, on concept images for 8,000 linear feet of stream and wetland restoration with no completed environmental analysis, no alternatives comparison, and no disclosed tribal consultation status.
What’s at risk
Pinehurst Branch runs through a 670-acre watershed in Rock Creek Park, an urban national park used daily by Washington DC residents. Active bank erosion has exposed sewer lines crossing the stream, and construction access is planned through the riparian forest, but the document provides no analysis of construction-period impacts on water quality, wildlife, or park visitors.
If we stay silent
If the agency closes scoping on October 30, 2026, without releasing supporting technical studies, the draft EA will be built on a record the public had no real chance to challenge. Project-wide invasive vegetation control, full floodplain reconnection affecting the entire 8,000-foot corridor, and work near active sewer infrastructure will all proceed under an environmental review the public was given less than 30 days to engage.
Our plain-English read of the official notice ↗. Check it against the agency’s own words below.
By the numbers, from the agency’s own document
- Total stream length within project area
- Approx. 8,000 linear feet
- Watershed area
- 670 acres
- Downstream segment shown on concept map
- Approx. 1,900 feet
Introduction
“Approx. 8,000 linear feet of stream within a 670-acre watershed area.”
Introduction
“Approx. 8,000 linear feet of stream within a 670-acre watershed area.”
Proposed Restoration Approaches Concept Map 3
“Map of Pinehurst Branch from Oregon Ave, NW, downstream approximately 1,900 feet.”
Each figure is checked word for word against the decision document ↗; open a label to read the sentence it comes from.
The agency’s own analysis
What the notice says, and what it leaves out
The strongest findings read from the agency’s own document, each quoted word for word. Each one is a point a letter can put on the record.
National Historic Preservation Act
The agency says
“Consult with State Historic Preservation Officers, Tribes, and other consulting parties”
The document states that Section 106 of the NHPA requires the agency to consult with Tribes and other consulting parties and to avoid, resolve, or mitigate adverse effects to historic properties.
Proposed Restoration Approaches
The agency says
“Non-Native Invasive Vegetation Control (no slide; applied project wide) and Revegetation”
The document lists 'Manage invasive vegetation' as a purpose of the project and shows a photograph of non-native invasive species covering the floodplain, but provides no information about what species are present, what control methods will be used (mechanical, chemical, or biological), what area will be treated, or how treated areas will be protected from reinvasion.
Need
The agency says
“Bank erosion has exposed sewer lines and impacted canopy trees”
The document identifies 'Protect public health and safety by stabilizing vulnerable sewer and transportation infrastructure' as a project purpose and includes images of exposed sewer lines crossing the stream.
Introduction
The agency says
“The District Department of Energy and Environment (DOEE) and the National Park Service (NPS) are considering concepts for stream and wetland restoration activities”
The document notes that project areas are located on parkland administered by NPS Rock Creek Park but also that DOEE is a co-lead agency.
7 holes in the agency’s own analysis
Make these points, in your own words
- I support this action and urge the agency to advance it.
- The document states that Section 106 of the NHPA requires the agency to consult with Tribes and other consulting parties and to avoid, resolve, or mitigate adverse effects to historic properties. However, the document provides no information about which Tribes have been identified as consulting parties, whether any consultation has begun, or whether any cultural resource survey of the 8,000 linear foot corridor has been completed. Ground-disturbing work of this scale in a stream corridor in Washington DC carries significant potential for buried archaeological resources. Presenting concept maps without disclosing the status of tribal consultation or cultural resource surveys is inconsistent with the agency's own stated Section 106 obligations. The agency should publicly disclose the list of consulting tribes, the status of consultation, and the results of any Phase I archaeological…
- The document lists 'Manage invasive vegetation' as a purpose of the project and shows a photograph of non-native invasive species covering the floodplain, but provides no information about what species are present, what control methods will be used (mechanical, chemical, or biological), what area will be treated, or how treated areas will be protected from reinvasion. Chemical herbicide use in a stream corridor and urban park raises water quality and public health concerns that NEPA requires the agency to analyze. The agency should specify the invasive species targeted, the control methods proposed including any herbicide use, the acreage to be treated, and the potential effects on water quality, wildlife, and park visitors before the EA is circulated for public comment.
- The document identifies 'Protect public health and safety by stabilizing vulnerable sewer and transportation infrastructure' as a project purpose and includes images of exposed sewer lines crossing the stream. Yet the document provides no information about the condition of those sewer lines, whether any sewage has entered or is entering Pinehurst Branch, what the human health risk is, or how construction activities near active sewer infrastructure will be managed to prevent a sewage release into the stream or Rock Creek. These are material facts for the EA's human health and water quality analysis. The agency should disclose the condition assessment of all sewer infrastructure within the project corridor and analyze the risk of construction-related sewage release in the EA.
- The document states the project will include 'Floodplain Enhancement/Wetland and Vernal pool Restoration' and shows a concept image of a restored floodplain, but provides no quantitative baseline: no acreage of existing wetlands, no acreage of wetlands to be created or restored, and no functional assessment of current wetland condition. Without a baseline, neither the agency nor the public can evaluate whether the proposed restoration will result in a net gain of wetland function, a net loss, or merely maintenance of degraded conditions. Any work that results in fill of waters of the United States also requires Clean Water Act Section 404 analysis. The agency should disclose existing wetland acreage, proposed restored wetland acreage, and the status of any Section 404 permit determination in the draft EA.
Show every point from the document
- The document describes 'Full Floodplain Reconnection' and 'Baseflow Channel and Partial Floodplain Reconnection' as distinct restoration approaches but presents them only as labeled photographs without explaining what physical differences distinguish them, where each would be applied along the 8,000 linear foot corridor, or what the tradeoffs are between the two approaches. These appear to be distinct alternatives or sub-alternatives that carry different environmental consequences for downstream flood risk, sediment transport, and habitat. Presenting them as undifferentiated 'approaches' without analysis does not meet the NEPA requirement to rigorously explore and objectively evaluate alternatives. The agency should treat these as distinct alternatives in the EA, quantify the differences in channel modification, floodplain area affected, and downstream hydraulic effects.
- The document notes that project areas are located on parkland administered by NPS Rock Creek Park but also that DOEE is a co-lead agency. No information is provided about the legal authority under which DOEE is authorized to conduct restoration work on federally administered NPS land, what interagency agreement governs the project, or how conflicts between DC regulatory requirements and NPS management policies will be resolved. This institutional ambiguity has direct bearing on which environmental review standards apply and who bears long-term maintenance responsibility for installed structures. The agency should disclose the interagency agreement or Memorandum of Understanding that authorizes DOEE's role on NPS land and clarify which agency bears long-term maintenance responsibility in the EA.
- The document lists 'Promote groundwater recharge and stable baseflow' as a stated purpose but provides no baseline data on current groundwater levels, baseflow measurements, or any analysis of how the proposed channel modifications would affect groundwater recharge rates. In an urban watershed of 670 acres that is substantially impervious, the relationship between stream restoration and groundwater recharge is not self-evident and requires hydrologic modeling to support. Without this analysis, the agency cannot demonstrate that the proposed restoration will actually achieve this stated purpose. The agency should include hydrologic modeling results showing predicted baseflow and groundwater recharge outcomes under each alternative in the draft EA.
- Say something only you can say. The law requires the agency to consider and respond to substantive comments, and specifics are what make a comment substantive.
In the agency’s own words
Meeting Presentation, Proposed Pinehurst Stream Restoration Project
Did the agency answer?
7 issues are on this record. The agency has not published its decision document yet, so each one stays pending until the agency answers.
Issues on the record, awaiting the decision
- PendingThe document states that Section 106 of the NHPA requires the agency to consult with Tribes and other consulting parties and to avoid, resolve, or mitigate adverse effects to historic properties.
The document states that Section 106 of the NHPA requires the agency to consult with Tribes and other consulting parties and to avoid, resolve, or mitigate adverse effects to historic properties. However, the document provides no information about which Tribes have been identified as consulting parties, whether any consultation has begun, or whether any cultural resource survey of the 8,000 linear foot corridor has been completed. Ground-disturbing work of this scale in a stream corridor in Washington DC carries significant potential for buried archaeological resources. Presenting concept maps without disclosing the status of tribal consultation or cultural resource surveys is inconsistent with the agency's own stated Section 106 obligations. The agency should publicly disclose the list of consulting tribes, the status of consultation, and the results of any Phase I archaeological survey before the EA is finalized.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document lists 'Manage invasive vegetation' as a purpose of the project and shows a photograph of non-native invasive species covering the floodplain, but provides no information about what specie
The document lists 'Manage invasive vegetation' as a purpose of the project and shows a photograph of non-native invasive species covering the floodplain, but provides no information about what species are present, what control methods will be used (mechanical, chemical, or biological), what area will be treated, or how treated areas will be protected from reinvasion. Chemical herbicide use in a stream corridor and urban park raises water quality and public health concerns that NEPA requires the agency to analyze. The agency should specify the invasive species targeted, the control methods proposed including any herbicide use, the acreage to be treated, and the potential effects on water quality, wildlife, and park visitors before the EA is circulated for public comment.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document identifies 'Protect public health and safety by stabilizing vulnerable sewer and transportation infrastructure' as a project purpose and includes images of exposed sewer lines crossing th
The document identifies 'Protect public health and safety by stabilizing vulnerable sewer and transportation infrastructure' as a project purpose and includes images of exposed sewer lines crossing the stream. Yet the document provides no information about the condition of those sewer lines, whether any sewage has entered or is entering Pinehurst Branch, what the human health risk is, or how construction activities near active sewer infrastructure will be managed to prevent a sewage release into the stream or Rock Creek. These are material facts for the EA's human health and water quality analysis. The agency should disclose the condition assessment of all sewer infrastructure within the project corridor and analyze the risk of construction-related sewage release in the EA.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document states the project will include 'Floodplain Enhancement/Wetland and Vernal pool Restoration' and shows a concept image of a restored floodplain, but provides no quantitative baseline: no
The document states the project will include 'Floodplain Enhancement/Wetland and Vernal pool Restoration' and shows a concept image of a restored floodplain, but provides no quantitative baseline: no acreage of existing wetlands, no acreage of wetlands to be created or restored, and no functional assessment of current wetland condition. Without a baseline, neither the agency nor the public can evaluate whether the proposed restoration will result in a net gain of wetland function, a net loss, or merely maintenance of degraded conditions. Any work that results in fill of waters of the United States also requires Clean Water Act Section 404 analysis. The agency should disclose existing wetland acreage, proposed restored wetland acreage, and the status of any Section 404 permit determination in the draft EA.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document describes 'Full Floodplain Reconnection' and 'Baseflow Channel and Partial Floodplain Reconnection' as distinct restoration approaches but presents them only as labeled photographs withou
The document describes 'Full Floodplain Reconnection' and 'Baseflow Channel and Partial Floodplain Reconnection' as distinct restoration approaches but presents them only as labeled photographs without explaining what physical differences distinguish them, where each would be applied along the 8,000 linear foot corridor, or what the tradeoffs are between the two approaches. These appear to be distinct alternatives or sub-alternatives that carry different environmental consequences for downstream flood risk, sediment transport, and habitat. Presenting them as undifferentiated 'approaches' without analysis does not meet the NEPA requirement to rigorously explore and objectively evaluate alternatives. The agency should treat these as distinct alternatives in the EA, quantify the differences in channel modification, floodplain area affected, and downstream hydraulic effects.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document notes that project areas are located on parkland administered by NPS Rock Creek Park but also that DOEE is a co-lead agency.
The document notes that project areas are located on parkland administered by NPS Rock Creek Park but also that DOEE is a co-lead agency. No information is provided about the legal authority under which DOEE is authorized to conduct restoration work on federally administered NPS land, what interagency agreement governs the project, or how conflicts between DC regulatory requirements and NPS management policies will be resolved. This institutional ambiguity has direct bearing on which environmental review standards apply and who bears long-term maintenance responsibility for installed structures. The agency should disclose the interagency agreement or Memorandum of Understanding that authorizes DOEE's role on NPS land and clarify which agency bears long-term maintenance responsibility in the EA.
A hole PLAN found in the agency’s own analysis, quote verified against the document
- PendingThe document lists 'Promote groundwater recharge and stable baseflow' as a stated purpose but provides no baseline data on current groundwater levels, baseflow measurements, or any analysis of how the
The document lists 'Promote groundwater recharge and stable baseflow' as a stated purpose but provides no baseline data on current groundwater levels, baseflow measurements, or any analysis of how the proposed channel modifications would affect groundwater recharge rates. In an urban watershed of 670 acres that is substantially impervious, the relationship between stream restoration and groundwater recharge is not self-evident and requires hydrologic modeling to support. Without this analysis, the agency cannot demonstrate that the proposed restoration will actually achieve this stated purpose. The agency should include hydrologic modeling results showing predicted baseflow and groundwater recharge outcomes under each alternative in the draft EA.
A hole PLAN found in the agency’s own analysis, quote verified against the document
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