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Hauling Earth at Vallecito Dam Construction Site
"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.…
Vallecito Spillway Construction
"Looking downstream in spillway channel from right side at station 8+10. Dragline is placing concrete in wall footing."
Footing Excavation at Vallecito Dam Site
"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…
Spillway Excavation at Vallecito Dam Site
"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."
Screening Plant at Vallecito Dam Site
"Screening plant erected by contractor to remove plus 5-inch stones from earth borrow materials."
Vallecito Dam Construction
"Looking toward right abutment from axis station 0+00. (Photographic point No. 3). Note excellent condition of embankment for hauling equipment."
Quarry at Vallecito Dam Site
"General view of rock quarry. Note large quantity of fragments and spalls at left side after blasting. Refer to Pine R-336."
Borrow Pit at Vallecito Dam Site
"Face of cut in Borrow Pit No. 2, Area No. 2, station 59+75/12+00. Total cut is 21 feet. Layer of glacial till extends from about one foot below surface to about 10 below, and the lower 10 feet is gravel."
Piezometer at Vallecito Dam Site
"Installation of copper tubing for piezometer connections at elevation 7640, station 11+75. Camera is about 53 feet downstream from axis."
Piezometer Tip at Vallecito Dam Site
"Close-up showing installation of piezometer tip at station 11+75, 45 feet upstream from axis, elevation 7640."
Sheepsfoot Compacting Material at Vallecito Dam Site
"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."
Active Spillway at Vallecito Dam Site
"Looking upstream at spillway from a point approximately 300 feet downstream fro end of structure. Discharge is estimated at 120 second-feet."
Spillway Outlet at Vallecito Dam Site
"Looking upstream along spillway and outlet channel front point 92 feet right of spillway centerline at station 17+00."
Rock Excavation at Vallecito Dam Site
"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."
Upstream View of Spillway
"Looking upstream at spillway gate structure from right side at station 9+27. Refer to Pine R-334."
View Toward Left Abutment
"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."
Excavating Borrow Pit No. 2
"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."
View Toward Right Abutment
"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."
Downstream View Towards Spillway Gate
"Looking downstream at spillway gate structure from station 3/100, 110 feet right of centerline of spillway. (Photographic Point No. 6). Note tar paper panels for protecting concrete at right center."
Snowy View of Embankment Slope
"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."
Steel Truss Bridge
"Steel truss bridge constructed over branch of Vallecito Creek at station 261+62 on relocated road."
Men Working at Dam Site
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.
A Brief History of Bayfield and the Pine River Valley, 1877-2007
A Reference Book with 19th and 20th Century Names, Dates and Places
Cora E. Thayer Story
These are the memories of Cora E. Thayer, as told by herself.
Constitution of the La Plata County Cowbelles
Typed copy of the Constitution of the La Plata County CowBelles, drawn up on 10 April 1952 and adopted on 17 April 1952. This includes all articles, by-laws, and duties along with hand-written notations.