Public Review Period for Draft Tidal Basin Development Concept Plan Section 106 Documents

The National Park Service (NPS) announces the availability of the following documents for a 30-day public review and comment period (September 11 - October 11, 2025):

- Draft Programmatic Agreement (PA) for the Tidal Basin Development Concept Plan

- Draft Assessment of Effects (AOE) on historic properties

- Appendices supporting the PA and AOE

These documents are being released in compliance with Section 106 of the National Historic Preservation Act and provide the framework, analysis, and supporting materials for evaluating potential effects of the Development Concept Plan on historic properties.

How to Comment:
You are invited to review the documents and submit comments online through the NPS Planning, Environment, and Public Comment (PEPC) website The comment period closes at 11:59 p.m. (ET) on October 11, 2025.

Your feedback will inform the refinement of the Programmatic Agreement, the effects analysis, and next steps in the Section 106 and NEPA processes.

Document Content:

Draft Assessment of Effect - Tidal Basin Concept Plan   (6.9 MB, PDF file) 2025-09-04 Draft Tidal Basin Programmatic Agreement   (1.7 MB, PDF file) 2025-09-04 Draft Tidal Basin PA Appendices   (12.5 MB, PDF file) Disclaimer: Links within the above document(s) were valid as of the date published. Note: Some of the files may be in PDF format and can be viewed using the Adobe Acrobat Reader software. You may download a free copy of from Adobe Systems.