rcc ot case studies - jyoung rcc2015
TRANSCRIPT
RCC Overtopping Construction Case Studies and Lessons Learned
Jeremy Young, PEMay 6, 2015
POE DAM – CENTRE CO., PAExisting Conditions
33’ High Earth DamMasonry Ogee and Chute30-inch Dia. CMP Outlet Conduit
POE DAM – CENTRE CO., PADam Safety Upgrades
Grout SpillwayReplace Outlet TowerSlipline/Extend Outlet ConduitRCC Embankment Armoring
Poe Dam, PA – Cross Section
Conduit Extension
Poe Dam, PA
Conduit Extension
Poe Dam, PA
Outlet Apron
Poe Dam, PA
RCC Apron Reinforcing
Poe Dam, PA
RCC Apron Reinforcing
Poe Dam, PA
Sloping RCC Apron
Poe Dam, PA
Drainfill Placement
Poe Dam, PA
Drainfill Placement
Fox Creek Dam, KY
Aggregate Stockpiling and RCC Mixing
Poe Dam, PA
Crushed Aggregate
One Pile – Dense Graded Road Base
2-inch MSA
Crest Detail
Poe Dam, PA
Endsill
Poe Dam, PA
Completed RCC/Final Site Grading
Poe Dam, PA
Completed 2008
$3.7M Total LS Bid
Unknown RCC Unit Price
10,600 CY RCC
400 LBS Cement/CY
Vebe 30 ± 5 seconds
Poe Dam, PA
Summary
LAKE ONEIDA DAMBUTLER CO., PAExisting Conditions
31’ High Earth DamProjecting Concrete Weir and ChuteTwo 30-inch Dia. DIP Blow-off/Supply Line
LAKE ONEIDA DAMBUTLER CO., PADam Safety Upgrades
Replace SpillwayRelocate Blow-off LineRCC Embankment Armoring
Lake Oneida Dam - Stream Diversion
Phased RCC Placement
Lake Oneida Dam, PA
Phased RCC Placement
Lake Oneida Dam, PA
RCC Apron
Lake Oneida Dam, PA
Conventional Concrete Training Wall On Unformed Steps
Lake Oneida Dam, PA
Lake Oneida Dam - Summary
Completed 2013 $6.9M Total Cost $103/CY 14,200 CY RCC 350 LBS C+FA/CY 35% Fly Ash (by wt.) 2 Piles
Natural River Sand Crushed OGS – 1.5” MSA
Vebe 30 ± 5 sec
Stoney Creek Dam – Bedford, VA
Conventional Concrete Training Walls On Formed Steps
Stoney Creek Dam – Bedford, VA
Converging Training Walls
Bear Creek Dam – Wise, VA
More Converging Training Walls
Unformed/Exposed Steps Allowed by USACE
Picatinny Arsenal, NJ
Photos courtesy of KC Construction
Control/Diversion of Water
Fox Creek, KY
GERCC Steps
Fox Creek, KY
Exposed GERCC Steps/Shrinkage Crack
Fox Creek, KY
Ogee Control Section
Fox Creek, KY
Fox Creek Dam, KY - Summary
Completed March 2011
$155/CY Avg Bid Price
10,000 CY RCC
400 LBS C+FA/CY
50% Fly Ash (by Wt.)
2 Piles
Natural River Sand
Crushed #8/#57 - 1.5” MSA
Vebe 20 secs
Armored Section Adjacent to Replacement Spillway
Lower Owl Creek Dam, PA
Lower Owl Creek Dam, PA
Sally’s Pond Dam, NJ
Sally’s Pond Dam - Design Concept
Sally’s Pond Dam - Construction
Sally’s Pond Dam - Construction
Sally’s Pond Dam - Construction
Sally’s Pond Dam, NJ
Completed 2008$1.8 M Total LS Bid2,400 CY RCC330 Lbs Cement/CY1.5” MSAVebe 30±5 sec
Questions/Comments?