Hydrohistorian
Log in

← The archive

Uncompahgre Project - Gunnison Tunnel - Finished section of Interior - Colorado

National Archives, via Wikimedia Commons · circa 1903-1909 · U.S. Reclamation Service (photographer not recorded)

A hand-coloured lantern slide looking down a finished section of concrete-lined tunnel; a narrow-gauge construction track runs along the floor into darkness toward a single distant light.
From the archive · National Archives, via Wikimedia Commons · circa 1903-1909 Uncompahgre Project - Gunnison Tunnel - Finished section of Interior - Colorado U.S. Reclamation Service (photographer not recorded)

National Archives, Records of the Bureau of Reclamation (Record Group 115), National Archives Identifier 294722; via Wikimedia Commons Public domain. Archive record ↗ · Rights

Source Archival record · verify at National Archives, via Wikimedia Commons ↗

Inside the Gunnison Tunnel before water: a finished, concrete-lined reach with the construction railway still on the floor. The tunnel carries the Gunnison River under Vernal Mesa to the Uncompahgre Valley.

Shows: The lining and bore of the tunnel as built, and the scale of the work.

What this does not let you conclude: Flow -- the tunnel is dry here; the gage record beside it shows what it delivers. The National Archives dates the album circa 1903; the tunnel was completed in 1909.

Placed on

Report a problem →