What we know
Built when the highway was laid through Monument in 1927-28; the girder was lettered 'THE GRAND CANYON LINE' (photograph, S-0021, p. 42).
Where it was
'Santa Fe Railroad underpass on Highway 105 was once located just east of Washington Street' (Communities of the Palmer Divide, S-0021, p. 42); placed where the abandoned Santa Fe grade in OpenStreetMap crosses Second Street (Highway 105), about a quarter mile east of Washington, past Jefferson: the only Santa Fe crossing of Second. Good to about a hundred feet.
Placed from a written description, such as a land section, a distance from a landmark or an old survey note.
Sources
- S-0021: Palmer Lake Historical Society, Communities of the Palmer Divide (Arcadia Publishing, March 2011)
- S-0103: OpenStreetMap extracts via the Overpass API (2026-10-05)
Sources are named in the text above. Numbers such as S-0080 refer to our source list. Most newspaper quotations were read in the Colorado Historic Newspapers Collection. Long quotations from recent books are shortened here.