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Biological Opinion: Lexington - Echo Highway Bridge Project, Umatilla County, Oregon. Endangered Species Act - Section 7 Consultation
| 题名： | Biological Opinion: Lexington - Echo Highway Bridge Project, Umatilla County, Oregon. Endangered Species Act - Section 7 Consultation |
| 关键词： | Natural resources conservation; Biological effects; Endangered species; Bridges; Demolition; Habitats; Environmental effects; Oregon; Aquatic resources; Remedial action |
| 摘要： | On December 11, 1998, the National Marine Fisheries Service (NMFS) completed an Endangered Species Act (ESA) section 7 informal conference with Oregon Department of Transportation (ODOT) for the Lexington - Echo Highway Bridges project (OSB1998-0116). NMFS concurred that the proposed action was not likely to adversely affect middle Columbia River steelhead because impacts within the two-year floodplain were predicted to be minimal and adverse affects to steelhead were not expected. Project construction began in 1999 and is scheduled to be completed in the fall of 2000. As part of this action, a new bridge was constructed in the City of Echo north of the old bridge alignment. Demolition of the old bridge began prior to the in-water work window this past summer. The NMFS visited the site on July 10, 2000, and observed bridge demolition practices that were not consistent with the action described in the biological assessment. Large pieces of concrete and other materials including fine dust were dropped directly onto the dry river gravels. An excavator was picking up the gravels and was dropping them into a dump truck. Small spots of oil and grease from vehicles in the floodplain were also observed. On August 8, 2000, NMFS sent the Federal Highway Administration (FHWA) a letter outlining the non-compliance issues. On August 31, 2000, NMFS received a request for formal consultation from the Federal Highway Administration (FHWA) to address impacts during the remainder of the bridge demolition at the site. The objective of this Opinion is to determine whether the action to demolish the remainder of the Echo Bridge and subsequent site remediation is likely to jeopardize the continued existence of the middle Columbia River steelhead, or destroy or adversely modify critical habitat. |
| 总页数： | 14p |
| 报告类型： | 科技报告 |
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