RCC OT Case Studies - JYoung RCC2015

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?