Mr. Saji Alummuttil
CESWF-EC-D
U.S. Army Corps of Engineers
Fort Worth District
P.O. Box 17300-0300
819 Taylor Street
Fort Worth TX, 76102-0300
Phone: 817-886-1764
Trinity River Vision
Trinity River Project FEIS
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Notice of Availability (NOA) [English]
The Central City Project is located within the vicinity of the downtown area of Fort Worth, Texas, along the West Fork and Clear Fork of the Trinity River and consists of a bypass channel, levee system, and associated improvements to divert flood flows around a segment of the existing floodway system. Included in the Corps of Engineers (Corps) portion of the project are hydraulic (valley storage) and related environmental and cultural resource mitigation requirements. Federal costs of the Corps portion of Central City Project are defined by PL 108-447 at $110,000,000. The non-Federal sponsor is the Tarrant Regional Water District and the City of Fort Worth is one of the local partners. These entities are also sponsors for the Riverside Oxbow Ecosystem Restoration Project, which encompasses about 1,060 acres along a 3-mile reach just downstream of the Central City Project including a portion of the old natural channel of the West Fork that was severed as a cut-off oxbow when the channel was realigned. Federal Cost for the Riverside Oxbow project is estimated (2002 price levels) at about $8,300,000.
By letter dated 22 June 2006, the City of Fort Worth requested that the Corps conduct an evaluation of the potential benefits of modifying the Central City Project to incorporate the Riverside Oxbow Ecosystem Restoration project area to accommodate valley storage requirements. In response to that letter request, the Corps’ initial evaluation suggested the concept merited additional study. Alternatives considered in more detailed evaluation of the proposal include the No Action Plan, which assumes that each project would proceed separately as currently approved and a Modified Central City Project alternative. This alternative has been formulated to integrate features of the Riverside Oxbow project and includes areas within the Riverside Oxbow project area for replacement valley storage. This analysis considers contingency valley storage sites that could be used in the event that hydraulic analyses conducted during more detailed design indicate that primary storage sites are not sufficient to achieve the required storage. The Modified Central City Project alternative would also involve relocation of the Samuels Avenue dam to a location slightly upstream of the approved dam site. To assure a comprehensive analysis, the total hydraulic system including the Central City and Riverside Oxbow areas and the channels upstream and downstream of these areas was evaluated. The recommended plan in this Supplement No. 1 to the Final EIS for the Central City Project is the Modified Central City alternative.
- Final Supplement No. 1 to the FEIS Report [49.6 MB PDF]
- Final Supplement No. 1 to the FEIS Report (minus figures) [0.9 MB PDF]
- Summary Figure(s)
- Chapter 2 Figure(s)
- Figure 4 - Modified Project Study Area [3.51 MB PDF]
- Chapter 3 Figure(s)
- Figure 5 - Valley Storage Sites for the Original Central City Project [3.60 MB PDF]
- Figure 6 - Valley Storage Analysis [3.54 MB PDF]
- Figure 7 - Environmentally Sensitive Areas in Riverside Oxbow [3.57 MB PDF]
- Figure 8 - Potential Valley Storage Sites [3.54 MB PDF]
- Figure 9 - Identified Valley Storage Sites to Meet Minimum Requirement [3.54 MB PDF]
- Figure 10 - Modified Central City Recommended Valley Storage Plan [3.79 MB PDF]
- Figure 11 - Proposed Samuels Avenue Dam and Site Layout Features [3.73 MB PDF]
- Chapter 4 Figure(s)
- Figure 12 - Habitat Development Plan for the Riverside/Gateway Area [3.65 MB PDF]
- Figure 13 - Modified Central City Project Conceptual Recreation and Infrastructure Plan for the Riverside Oxbow/Gateway Park Area [3.86 MB PDF]
- Figure 14 - Modified Central City Project Recreational Features [3.79 MB PDF]
- APPENDICES
- Appendix A - Hydrology and Hydraulics [19.5 MB PDF]
- Appendix B - Geotechnical [433 KB PDF]
- Appendix C - Civil/Structural Preliminary Design
- Volume I - Narrative [1.80 MB PDF]
- Volume II - Supplemental Plans [34.4 MB PDF]
- Appendix D - Socioeconomics and Environmental Justice [531 KB PDF]
- Appendix E - Habitat Evaluations [4.14 MB PDF] (w/ Attachment 1 [693 KB PDF])
- Appendix F - 404 (B)(1) Analysis [21.1 MB PDF]
- Appendix G - Fish and Wildlife Coordination Act Report [620 KB PDF]
- Appendix H - Public Review and Comments [620 KB PDF]