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2022-08-25_PERMIT FILE - C1981012 (13)
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2022-08-25_PERMIT FILE - C1981012 (13)
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Last modified
9/26/2022 3:29:08 PM
Creation date
9/26/2022 3:19:07 PM
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DRMS Permit Index
Permit No
C1981012
IBM Index Class Name
Permit File
Doc Date
8/25/2022
Section_Exhibit Name
EXHIBIT 07 ARCHAEOLOGIC INFORMATION
Media Type
D
Archive
No
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New Elk Mine Bridge Repair and Replacement Project <br />arcadis.com <br />New Elk Mine Cultural Report_TB_Rev030722 NOT FOR PUBLIC DISCLOSURE 32 <br />Smithsonian <br />Site Number Site Description Management Recommendations <br />5LA.9878 <br />(specifically <br />previously recorded <br />segment <br />5LA.9878.2) <br />Object (Martinez & Medina <br />Ditch). Not eligible. <br />Avoidance: site is not eligible for the NRHP, but the ditch <br />intersects the ROW and crosses under the railroad grade. <br />The ditch is clearly defined and very visible. If all Project <br />work avoids the ditch and does not alter the ditch beneath <br />the railroad grade, the site will not be directly or indirectly <br />affected by Project activities. <br />5.1 Application of the Criteria of Adverse Effect <br />The former C&W railroad grade (5LA.7112) has been previous determined to be eligible for NRHP listing <br />under Criterion A, and several features associated with 5LA.7112 have been recommended as <br />contributing elements of the NRHP-eligible railroad grade (see Table 2). Because the Project involves the <br />repair and/or replacement of characteristics of the historic resource that could qualify it for inclusion in the <br />NRHP, the criteria of adverse effect of the Project on the resource were applied and assessed (Table 4). <br />Table 4. C&W Railroad Grade (5LA.7112) Application of Criteria of Adverse Effect <br />Criteria of Adverse Effect Evaluation <br />Physical destruction of or damage to <br />all or part of the property? <br />The Project will involve the removal and replacement of eight culverts <br />recommended as minor-built and/or non-contributing elements of the <br />NRHP-eligible C&W railroad grade (5LA.14417, 5LA.14418, <br />5LA.14419, 5LA.14423, 5LA.14425, 5LA.14428, 5LA.14435, and <br />5LA.14444). These features are ubiquitous, and while estimated dates <br />of construction are provided in the OAHP site forms (Appendix B), may <br />date from as early as 1900 and as late as the 1980s. These features <br />are largely subterranean and will be replaced with smooth steel pipe <br />culverts protected by riprap, which are consistent with existing culverts <br />elsewhere along the route. Furthermore, the Project will not alter the <br />alignment, technology, or setting of the railroad corridor. As such, the <br />Project will not diminish or otherwise impact the qualifying <br />characteristics of the NRHP-eligible railroad’s significance and <br />eligibility. <br />Alteration not consistent with the <br />Secretary of the Interior’s <br />Standards? <br />The Project will involve the replacement of eight non-contributing <br />elements and the repair of 17 contributing and non-contributing <br />elements of the NRHP-eligible C&W railroad (5LA.7112). The eight <br />non-contributing culverts will be replaced with smooth steel pipe <br />culverts and riprap, which are consistent with existing culverts along <br />other contributing segments of the railroad. <br />Repairs to both contributing and non-contributing elements of the <br />railroad will be minimal, utilize in-kind materials, and be compatible with <br />massing, size, scale, and architectural features of the elements. Of the <br />16 bridges to be repaired, the scope of work for 10 bridges is limited to <br />the removal of ballast, the cleaning of drains and bearings, and the <br />application of concrete sealer. These tasks are generally non-invasive <br />and will not impact any distinctive features, finishes, or construction <br />techniques, will not introduce any new features or elements, and will <br />help in retaining the overall resource’s character, integrity, and historic <br />purpose.
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