san vicente dam raise update - may 2013

Engineering &Operations Committee MeetingMay 23, 2013

Jerry Reed

Raised Dam

2

Spillway

3

4

Downstream Step Repair

Upstream Liner Installation

5

Low Level Outlet Gate Structure

Low Level Outlet Pipe

Existing Dam

Cofferdam

Bedrock

Target  EL 594

EL 625

Future RCC Dam

Active Reservoir

Flood Buffer

6

Low Level Outlet Gate Structure

7

Outlet Tower

8

9

Outlet Tower Gates

10

Fish Screen

11

Lower Level Outlet108-inch Diameter Pipe

City 66-inchDiameter Pipe

EmergencyDischarge

Outlet WorksWater Authority

90-inchDiameter Pipe

Plunger and Gate Valve Installation

12

Picture of BFV flying in from Crane, update on Monday

13

108-inch Diameter Butterfly Valve Installation

108-inch Diameter Butterfly Valve

14

Contractor’s Baseline Schedule

Start-up Testing

Decommission Exist OW

108” Valve Actuator Delay

Schedule Update

NO

VEM

BER

2013

FIN

ISH

15

(Construction Contract Duration)

Complete Outlet Works

7 Months

Commence Reservoir Fill

CONTRACTORS BASELINE SCHEDULE

RESE

RVO

IR F

ILL

TO E

L.64

0FA

LL 2

014

-20

17

Award Package 5 Marina Construction -Summer of 2013

Complete Filling to Height of Existing Dam

Award Package 4 Bypass Pipeline Construction -Summer of 2014

Begin Filling to Full Height of Raised Dam

Upcoming Activities

16