Trenton Dam: Constructed 1949-1953 |
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Page
... 100 acre -feet, between elevations 2693.0 and 2710.0 Dam Type: Zoned rolled
-earth fill Foundation: Pierre shale " Slope protection: Riprap on gravel blanket on
upstream face, seeded topsoil on downstream face Dimensions: Height: 144 ...
... 100 acre -feet, between elevations 2693.0 and 2710.0 Dam Type: Zoned rolled
-earth fill Foundation: Pierre shale " Slope protection: Riprap on gravel blanket on
upstream face, seeded topsoil on downstream face Dimensions: Height: 144 ...
Page 1
This shale, deposited during the Cretaceous period, is overlain in the river valley
by alluvial sands and on the valley abutments by Ogallala sand and gravel
deposits. These deposits at both abutments are capped by a Loveland loess
strata ...
This shale, deposited during the Cretaceous period, is overlain in the river valley
by alluvial sands and on the valley abutments by Ogallala sand and gravel
deposits. These deposits at both abutments are capped by a Loveland loess
strata ...
Page 7
6,537,000 (2) Pervious sand and gravel, cu. yd. 977,000 (3) Fine and coarse
aggregate for concrete, tons 96,000 (4) Riprap For dam, cu. yd. 206,500 For
relocated railroad fill, cu. yd. 32,000 (5) Gravel or crushed rock blanket For dam,
cu. yd.
6,537,000 (2) Pervious sand and gravel, cu. yd. 977,000 (3) Fine and coarse
aggregate for concrete, tons 96,000 (4) Riprap For dam, cu. yd. 206,500 For
relocated railroad fill, cu. yd. 32,000 (5) Gravel or crushed rock blanket For dam,
cu. yd.
Page 22
The sand and gravel obtained from foundation excavation and the Ogallala
sands obtained from the spillway excavation were considered satisfactory zone 2
material. This material intercepts seepage through the zone 1 embankment
material ...
The sand and gravel obtained from foundation excavation and the Ogallala
sands obtained from the spillway excavation were considered satisfactory zone 2
material. This material intercepts seepage through the zone 1 embankment
material ...
Page 23
To insure effective interception of seepage flow, the trench for the toe drain was
designed with a 4-foot minimum depth below the ground surface. The drain was
constructed with open joints and embedded in graded gravel and selected sand.
To insure effective interception of seepage flow, the trench for the toe drain was
designed with a 4-foot minimum depth below the ground surface. The drain was
constructed with open joints and embedded in graded gravel and selected sand.
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Common terms and phrases
abutment aggregate APPENDIX base basin bids blanket borrow area bridge canal outlet capacity cement channel CM CM CM completed concrete conduit consisted construction Continued contract contractor control house cost crest cubic yards cutoff trench designed determining discharge downstream drains earth elevation embankment ENGiNEER equipment excavation extend feet Figure flood floor forms foundation Furnishing gate chamber gravel head highway hoist holes horizontal inches included indicated installed joints layer length loads located Lump material maximum mixing Nebr obtained operation percent pipe placed plant plate pounds pressure railroad reinforcement relocation reservoir water surface riprap river river outlets rock rv rv sand shale shown side slope specifications spillway square station steel stilling stresses structure studies supply tests thickness tion Trenton Dam trucks Unit upstream vertical walls weight
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