Browse Items (44 total)

  • Tags: Durango

val-422.jpg
"Looking along axis toward right abutment from station 0+00, (Photographic point No. 3). Average elevation of embankment in foreground is 7672. Refer to Pine R-383."

val-408.jpg
"Looking along axis toward left abutment from right bank of spillway (Photographic Point No. 1) Average elevation of fill - 7660. Refer to Pine R-385."

val-278.jpg
"Looking toward left abutment from right side of temporary diversion channel (135 feet upstream from axis at station 25+50). Placing compacted embankment in diversion channel in right foreground. Temporary cofferdam at left foreground."

val-304.jpg
"Looking downstream in spillway channel from right side at station 8+10. Dragline is placing concrete in wall footing."

val-014.jpg
View from the sky of the nearly finished Vallecito Dam, north of Bayfield, Colorado.

val-324.jpg
"Looking toward right abutment from axis station 0+00. (Photographic point No. 3). Note excellent condition of embankment for hauling equipment."

val-270.jpg
"Looking upstream at cofferdam construction in temporary diversion channel. Bridge is just upstream from toe of dam."

val-398.jpg
"Looking upstream at spillway gate structure from right side at station 9+27. Refer to Pine R-334."

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An historic survey of Animas City Cemetery prepared for the State Historical Fund

Hermosa Cemetery August 12_2012 001.jpg
An historic survey of Hermosa Cemetery prepared for the State Historical Fund

val-438.jpg
"Steel truss bridge constructed over branch of Vallecito Creek at station 261+62 on relocated road."

val-372.jpg
"Looking upstream along spillway and outlet channel front point 92 feet right of spillway centerline at station 17+00."

val-312.jpg
"Looking along axis toward left abutment from right bank of spillway (Photographic point No. 1). Excavation at left foreground is for completion of cutoff wall and placing lean concrete foundation under spillway inlet channel floor."

val-006.jpg
Concrete being poured to construct the spillway at the Vallecito Dam north of Bayfield, Colorado

val-007.jpg
Trestle spanning the spillway during the construction of the Vallecito Dam, north of Bayfield, Colorado.

val-432.jpg
"Looking at downstream slope of embankment from a point in the old river channel about 600 feet downstream from axis. Slope near the crest of dam has not been graded. Note piezometer well cover at station 11+75 in center of picture."

val-011.jpg
A Sheesfoot or tamping roller working at the construction of the Vallecito Dam, north of Bayfield, Colorado.

val-365.jpg
"Sheepsfoot roller compacting upstream No. 2 material at station 20/25, 30 feet upstream from dam axis. The moisture content of this material is approximately 1.5% below optimum moisture."

[Untitled].pdf
Colorado's best kept secret is out!!! Not even the wild, rugged Rocky Mountain peaks and dense forests could keep this spectacular "little valley" secret forever. Dirk Ross and his family help you discover the secrets of the "little valley" thru…

val-320.jpg
"Screening plant erected by contractor to remove plus 5-inch stones from earth borrow materials."

val-393.jpg
"Rock excavation for right wall of spillway inlet structure, stations 5/100 to 5/29.89. Note rock slide just above and to right of form at lower left."

val-337.jpg
"General view of rock quarry. Note large quantity of fragments and spalls at left side after blasting. Refer to Pine R-336."

val-004.jpg
A man pouring concrete during the construction of the Vallecito Dam north of Bayfield, Colorado.

val-349.jpg
"Close-up showing installation of piezometer tip at station 11+75, 45 feet upstream from axis, elevation 7640."

val-348.jpg
"Installation of copper tubing for piezometer connections at elevation 7640, station 11+75. Camera is about 53 feet downstream from axis."

val-015.jpg
A panoramic photo view of the Vallecito Dam, north of Bayfield, Colorado.

placenames.pdf
Origins of geologic place names for Colorado locations.

Vallecito Dam.jpg
As part of the New Deal, the Civilian Conservation Corps (CCC) cleared the trees in the area for the Dam. The Dam itself was constructed by the United States Bureau of Reclamation.

val-013.jpg
A man overlooking the spillway at the Vallecito Dam, north of Bayfield, Colorado.

val-012.jpg
Man using a pneumatic tool during the construction of the Vallecito Dam, north of Bayfield, Colorado.

val-003 Dam construction.jpg
A view of several pieces of heavy machinery aiding in the construction Vallecito Dam north of Bayfield, Colorado

val-299.jpg
"Looking toward right abutment from station 19/50, 30 feet right of axis at the upstream No. 2 section of embankment. To the right of this section are piled the cobbles recovered from one life of embankment placed in the upstream part of No. 2 zone.…

val-005.jpg
Men constructing the foundations for concrete to be poured at the Vallecio Dam north of Bayfield, Colorado.

val-310.jpg
"Completed excavation for placing lean mass concrete foundation under spillway inlet wall at left side, station 5+30 to 5+84. Note key trenches excavated in rock. Embankment cut-off wall in foreground will be extended to the mass concrete. Refer to…

val-419.jpg
"Dragline excavating in Borrow Pit No. 2, station 56+75/12+50. Contractor chose to make two cuts in this area. Not face of first shovel out in background."
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