Fly-through of Historic Carlsbad Caverns Stairs



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A team from the HDP office, consisting of HABS architect Mark Schara, HAER architect Jeremy Mauro, HABS historian Lisa Davidson, and HAER photographer Jet Lowe, traveled to Carlsbad, New Mexico, 29-31 January, to document the historic stairs in Carlsbad Caverns National Park.

Beginning in 1925, the newly-established park undertook the construction of a system of wooden staircasess in order to enable visitor access to the caverns. Within a decade, however, the park had begun the construction of a sequence of paved paths and switchback ramps as a more pedestrian-amenable replacement to the stairs, which were subsequently abandoned and eventually, for the most part, removed. The six flights of stairs documented by the HDP team, located on the east side of Iceberg Rock, are the last surviving portion of the original stair system.

Over the years the high humidity level in the caverns (close to 100%) has fostered the growth of mold on the stairs. The mold has caused the wood members to deteriorate, to the point that the stairs are no longer safe and have been condemned. Following the completion of the HABS documentation project, the stairs will be demolished. The project was sponsored by Carlsbad Caverns National Park.

This fly-through of the Carlsbad Caverns stairs is comprised of multiple individual scan stations using an HDR Pano Photo textured point cloud rendered in Pointools. The fly-through video animation was produced by Jeremy Mauro, HAER Architect.

This video does not contain sound.

The Heritage Documentation Programs administers HABS (Historic American Buildings Survey), the Federal Government’s oldest preservation program, and companion programs HAER (Historic American Engineering Record) and HALS (Historic American Landscapes Survey). Documentation produced through the programs constitutes the nation’s largest archive of historic architectural, engineering, and landscape documentation.

Learn more about HDP by visiting us online at

See more photographs of the HDP documentation of the historic Carlsbad Caverns stairs in our Facebook photo album at

Search the HABS/HAER/HALS Collection in the Library of Congress at

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Can You Carpet Exterior Concrete Stairs? – Indoor Outdoor Carpeting



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Yes you can carpet your exterior concrete stairs. In this video you will also learn how to carpet a set of exterior stairs, even though we are going to use a set of plywood stairs in our example. This isn’t that hard of a project to do, yet could be frustrating, so make sure you watch the video and try to gather as much information about using indoor outdoor carpeting for exterior stairs and the installation as you possibly can, before doing it yourself.

NEBRASKA – Hummel Park Morphing Stairs! – Paranormal America Episode 15



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