Minnesota Department of Transportation Memo Metropolitan District Office Tel: 651/234-7677 Mail Stop 050 Fax: 651/234-7610 Waters Edge Building 1500 W. County Road B-2 Roseville, MN 55113-3174 August 10, 2007 To: Terry Zoller Project Manager From: Rick Dalton Environmental Coordinator Subject: I-35W Bridge No. 9340 Debris Removal – Project Memorandum not required for this project Removal of collapsed I-35W Bridge #9340 over the Mississippi River Categorical Exclusion Determination Timesheet Job # TERBRIDG Project Description On August 1, 2007, the I-35W Bridge #9340 over the Mississippi River near downtown Minneapolis collapsed. It is necessary to remove the collapsed bridge debris as soon as possible so that local roads, railroad tracks, and the river channel that passed under the I-35W Bridge #9340 can be reopened. It is also necessary to remove the bridge debris so that a new I-35W bridge over the Mississippi River can be built. Federal emergency relief funds will be available for the bridge debris removal. A plan for removal of the bridge debris is being organized by the Mn/DOT, the National Transportation Safety Board, the Occupational Safety and Health Administration, and the Federal Bureau of Investigation. Coordination The Section 7 consultation under the Endangered Species Act of 1973 concluded that the proposed debris removal will have no effect on federally-listed species or listed critical habitat (letter attached). The Section 106 consultation under the National Historic Preservation Act resulted in a determination of “no adverse effect” on historic properties by Mn/DOT’s Cultural Resources Unit (CRU) on August 8, 2007. The Minnesota State Historic Preservation Office (MnSHPO) concurred in this determination on August 9, 2007 (letters attached) with the following three conditions: 1. During debris removal activities, adequate measures will be taken to protect the three adjacent historic properties – the Tenth Avenue Bridge (Cedar Avenue Bridge), the Lower St. Anthony Falls Lock and Dam, and the railroad retaining wall on the north side of the river. We encourage the incorporation of specific protection measures in construction stipulations, as appropriate. If any modifications, repair, or other work at these properties is needed as part of the debris removal process, the CRI will consult further with the MnSHPO. 2. With regard to the temporary storage site for the bridge debris materials, if either the TCAAP site or the eastern riverbank site is selected, the CRU will assess the specific storage location at the site and any required associated activity (such as access roads), and will consult with MnSHPO to determine the need for additional survey work. 3. If a final debris site is selected, or other modifications to the scope of the project are necessary, the CRU will consult with the MnSHPO to determine the need for additional survey work. Why a Project Memorandum is not needed The I-35W Bridge No. 9340 debris removal project meets the criteria for a categorical exclusion under under 23 CFR 771.117(c) (9). Therefore, a written Project Memorandum is not needed for the bridge removal. If you have questions, please call me at 651-634-2175. Cc: Mn/DOT – MS 620, Frank Pafko FHWA – Cheryl Martin Project Documentation Unit - Project Memorandum file (paper copy) EDMS This form documents that an environmental document is not needed for this project.
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