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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 20 <br />Smithsonian <br />Site Number <br />Temporal <br />Period Site Description NRHP Eligibility Recommendation <br /> 5LA.14427 Historic <br />Structure <br />C&W Railroad Concrete Slab <br />Bridge at MP 17.24 <br />Not Individually Eligible <br />Contributing Feature of the C&W RR: the <br />bridge at MP 17.24 was constructed within <br />the C&W Railroad’s period of significance as <br />part of a rehabilitation of the railroad in <br />1951, and retains sufficient integrity to be <br />considered a contributing feature to the <br />C&W Railroad’s NRHP eligibility under <br />Criterion A. <br /> 5LA.14428 Historic <br />Structure <br />C&W Railroad Culvert at MP <br />13.82 <br />Not Individually Eligible <br />Non-Contributing to C&W RR <br /> 5LA.14429 Historic <br />Structure <br />C&W Railroad Concrete Slab <br />Bridge at MP 18.04 <br />Not Individually Eligible <br />Contributing Feature of the C&W RR: the <br />bridge at MP 18.04 was constructed within <br />the C&W Railroad’s period of significance as <br />part of a rehabilitation of the railroad in <br />1951, and retains sufficient integrity to be <br />considered a contributing feature to the <br />C&W Railroad’s NRHP eligibility under <br />Criterion A. <br /> 5LA.14430 Historic <br />Structure <br />C&W Weston Bridge; Through- <br />Truss Bridge at MP 21.06 <br />Not Individually Eligible <br />Contributing Feature of the C&W RR: the <br />Pratt through-truss bridge at MP 21.06 was <br />constructed over the Purgatoire River by the <br />American Bridge Company in 1902. The <br />bridge is a definitive feature of the C&W <br />Railroad Southern Division and retains <br />sufficient integrity to be considered a <br />contributing feature to the C&W Railroad’s <br />NRHP eligibility under Criterion A. <br /> 5LA.14431 Historic <br />Structure <br />C&W Railroad Bridge at MP <br />21.55 <br />Not Individually Eligible <br />Contributing to C&W RR <br /> 5LA.14432 Historic <br />Structure <br />C&W Railroad Bridge at MP 1.05 <br />at Jansen Yard <br />Not Individually Eligible <br />Non-Contributing to C&W RR <br /> 5LA.14433 Historic <br />Structure <br />C&W Railroad Bridge at MP <br />14.31 <br />Not Individually Eligible <br />Non-Contributing to C&W RR