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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 29 <br />Smithsonian <br />Site Number Site Description Management Recommendations <br /> 5LA.14430 <br />Structure: C&W Weston <br />Bridge; Through-Truss Bridge <br />at MP 21.06 <br /> <br />Not Individually Eligible <br />Contributing to C&W <br />Restoration and Preservation; the proposed scope of <br />work to be conducted on 5LA.14430 includes the full <br />encasement of the west abutment and the encasement of <br />the east abutment bearings, the addition of a steel cover <br />plate to the top of the lower chord, the cleaning and reset <br />of bearings, and the installation of new timber deck ties. <br />These Project activities are designed to strengthen and <br />help retain the existing structure and avoid component <br />failure, with the goal of restoring the site to its original <br />form and originally intended purpose. These activities will <br />not impact the route or height of the C&W railroad grade, <br />will not diminish the structural or aesthetic integrity of the <br />resource, and will not remove, replace, or otherwise <br />significantly alter any other qualifying characteristics of <br />the railroad’s NRHP eligibility. <br /> 5LA.14431 <br />Structure: C&W Railroad <br />Bridge at MP 21.55 <br /> <br />Not Individually Eligible <br />Contributing to C&W <br />None; the proposed scope of work to be conducted at <br />5LA.14431 is limited to the removal of ballast from the <br />existing deck, the cleaning of deck drains and bearings, <br />and the application of concrete sealer. These activities <br />will not impact the route or height of the C&W railroad <br />grade, will not diminish the structural or aesthetic integrity <br />of the resource, and will not remove, replace, or otherwise <br />significantly alter any other qualifying characteristics of <br />the railroad’s NRHP eligibility. <br /> 5LA.14432 <br />Structure: C&W Railroad <br />Bridge at MP 1.05 at Jansen <br />Yard <br /> <br />Not Individually Eligible <br />Non-Contributing to C&W <br />None; no work will be conducted on the bridge at MP <br />1.05; further, the resource is recommended not <br />individually eligible for NRHP listing, is likewise <br />recommended as a non-contributing element to the C&W <br />Railroad’s eligibility, and therefore does not require <br />protection. <br /> 5LA.14433 <br />Structure: C&W Railroad <br />Bridge at MP 14.31 <br /> <br />Not Individually Eligible <br />Non-Contributing to C&W <br />None; in its current condition, the bridge at MP 14.31 is <br />recommended non-contributing to the C&W due to a loss <br />of integrity and does not require protection. The scope of <br />work for the bridge, however, will include repairing the <br />damaged northwest wingwall, tuck pointing the existing <br />stone abutments, cleaning and resetting the bearings, <br />and installing new timber deck ties. These tasks will not <br />alter the C&W railroad grade’s route, height, or any other <br />qualifying characteristics of the railroad’s NRHP eligibility <br />and will help restore some of the resource’s integrity of <br />design, materials, association, and feeling.