KYL_Lock_Excavation_July2018_PreBid_v2.pdf

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“The views, opinions and findings contained in this report are those of the authors(s) and should not be construed as an official Department of the Army position, policy or decision, unless so designated by other official documentation.”

Nashville District July 2018

KENTUCKY LOCK ADDITION

DOWNSTREAM LOCK EXCAVATION

File Name

2Downstream Lock Excavation Pre-bid Site Visit Agenda

• Contract Briefings

• Questions and Answers

• Safety Briefing

• Site Walk-thru

• Close-out session with Q&A’s and summary of action items

3Downstream Lock Excavation Pre-Bid Site Visit Briefing Agenda

• Opening, Purpose of Visit and Solicitation Overview – Jessica Baker, Contract Specialist

• Project and Contract Overview (including Cranes and Maintenance Building)– Don Getty, Project Manager

• Geology/Rock Excavation/Grouting, Geotechnical, and Instrumentation

– Mark Elson, KY Lock Lead Geologist

• Strand anchors, stoplog slots, gratings, bridge demolitions and modifications, maintenance building – Stephen Salaman, KY Lock Structural Engineer

• Contractor work areas, coordination with other contractors, and safety briefing – Jeremiah Manning, Resident Engineer

• Q&A’s

• Bid Schedule and Measurement & Payment

• Questions can be submitted until July 30, 2018

4Downstream Lock Excavation Solicitation Summary

• Please Sign-In (attendance roster will be posted to www.FBO.gov this week)

• Questions during today’s site visit- We will address any questions to the best of our ability, but anything said today is not official unless it is in writing in the issued amendment to this solicitation. All question must be written on index cards or they will not be addressed in the amendment.

• All amendments will be posted publicly on www.fbo.gov.

• Solicitation Walkthrough http://www.fbo.gov/ http://www.fbo.gov/

5Downstream Lock Excavation Major Contract Characteristics

• Award by September 30, 2018.

• Base with 12 Options

• Solely due to fiscal year funding constraints

• Scope of options is not on Plans – only in 01 00 00 and Bid

Schedule. Designed to easily change scope of Base & Options prior to advertising.

• Period of Performance – Approximately 3 years.

• Contract scope includes completion of Downstream Cofferdam and dewatering its pit.

6Downstream Lock Excavation Project and Contract Overview

• Key Points

• This powerpoint will be posted on FBO along with Q&A’s discussed today.

• Pls hold Questions until the bitter end of the presentations

• Our intent is to tell you some of the “Why” we are doing what we propose and describe key elements - in the hope this helps you to provide input to make this a better contract.

• We will describe the known Amendments.

BUILDING STRONG®

Lock Addition Alignment

New Hwy and RR Bridges New Transmission Towers

Upstream Cofferdam

Upstream Lock Monoliths

Kentucky Lock Addition Completed Features

Location of Ongoing Downstream Cofferdam

Kentucky Lock Addition

-$1.25B Total Project Cost -$450M Expended to Date -2024 Earliest Project Completion Date

Downstream Cofferdam

Downstream Cofferdam

-Contractor: Johnson Bros.

-$67.1M Award -Award: September 2016 -Complete: February 2020

Downstream Cofferdam

Modify Upstream Bridge

Demo Shop addition on Existing Ops Bldg

Site, Demolition, and Utilities (SDU) Contract $4.1M to Intec Completion Date: January 2019

Relocate Sanitary Sewer

Relocate Electrical and Control Lines

Existing Water and Sewer

Relocated Sewer Line

Catwalk on 3 sides of Ops Bldg

New Sewage Lift Station

Cantelevered Utility Systems

Note: All pipe support systems in SDU have been designed to accommodate the 8” water line relocation.

Top of brackets to be lowered 31” below top of lock wall

KY LOCK FUNDING HISTORY

$0

$10

$20

$30

$40

$50

$60

FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18

M illi on s

Annual Funding Allocations

Net Allocations

Last Year in Budget

ARRA $88.9M

CY 14 – 2 Major positive game changers to IWTF by Congress

$0 in

FY14

Near Efficient Funding

15Efficient Funding as Presented at Inland Waterways User Board on

1 March 2018 Goal: Exercise as many Options as possible with FY Funding and make full use of FY funding

Note: Above funding amounts for KY Lock are for many purposes, not just for this or other contracts.

LOCK EXCAVATION BASE

Downstream Cofferdam Contract

Maintenance Building Demolition

New Maintenance Building

Bridge Demolition

Land Wall Instrumentation and Vertical Anchors

Overburden Excavation

Landwall Grating and Crane Prepositioning

Schedule Constraints Prior to significant overburden excavation:

1) New Maint Bldg and demo existing

2) Fully functioning landwall instruments & vertical anchors

3) LW grating and crane prepositioning

4) Demo of land spans of 3 bridges

5) 8” water line relocation Bridge Demolition

1) No lock closures allowed except during 24 day closure in Aug 2019.

LOCK EXCAVATION OPTION 11

8” Water Main Relocation

Schedule Constraints

1) Corps exercises relocation contract with N. Marshall Utility District

2) Exercise Option by April 2019

LOCK EXCAVATION OPTION 1

Land Wall Vertical Anchors

Lower section may not be accessible until JB completes DS Cofferdam

Schedule Constraints

1) None except access noted below

LOCK EXCAVATION OPTION 2

Land Wall Angled Strand Anchors

Schedule Constraints

1) Overburden excavation down to elevation 330.

LOCK EXCAVATION OPTION 3

Land Wall Angled Strand Anchors

Schedule Constraints

1) Overburden excavation down to elevation 330.

2) Grouting must be completed prior to angled anchor drilling

LOCK EXCAVATION OPTION 4

Specialized Treatment Zone Grouting

Schedule Constraints

1) Access to Downstream

Cofferdam area.

LOCK EXCAVATION OPTION 5AA

Downstream Stoplog Slots Vertical cuts

Schedule Constraints

1) No lock closures allowed except during 24 day scheduled outage, currently scheduled from 6 to 30 August 2019.

LOCK EXCAVATION OPTION 5AB

Downstream Stoplog Slots Remainder of scope

Schedule Constraints

1) No lock closures allowed except during 24 day scheduled outage, currently scheduled from 6 to 30 August 2019.

LOCK EXCAVATION OPTION 6

Phase 2 Overburden Excavation

Schedule Constraints

1) JB Downstream Cofferdam activities could affect some of this area.

LOCK EXCAVATION OPTION 7

Phase 1 Rock Excavation

Schedule Constraints

1) Overburden excavation must be completed.

2) If this rock excavation is performed prior to dewatering DS Cofferdam, then tailwater elevations could impact limits of excavation. Existing toe drain pipe allows tailwater to enter this area.

LOCK EXCAVATION OPTION 8

Downstream Cofferdam Grouting, Instrumentation and Vertical Anchors

Schedule Constraints

1) JB Downstream Cofferdam activities must have progressed to allow access for all of these activities.

LOCK EXCAVATION OPTION 9

Phase 3 Overburden Excavation, Phase 2

Rock Excavation

Schedule Constraints

1) Dewatering cannot commence until completion of a) grouting,

b) fully functioning instrumentation system; and

c) vertical anchors in M22 and M23.

LOCK EXCAVATION OPTION 10

Phase 3 Rock Excavation

MAINTENANCE BUILDING

Slide 30

Rotated Maintenance Building (by Amendment)

Slide 31

Olmsted Project Terex Crane to be re-furbished and placed on Lock Wall. Available March 2019.

STRATIGRAPHY

TOP OF ROCK

Top of Rock at Upstream Cofferdam

Rock Excavation at Upstream Monolith Construction

ROCK EXCAVATION FOR UPSTREAM MONOLITHS 36

U/S LOCK EXCAVATION – AUGUST 2010 –

ROCK PINNACLES

Slide 37

LOCK EXCAVATION – MAY 2011

Slide 38

ROCK PINNACLE IN DOWNSTREAM EXCAVATION

EXCAVATION CROSS SECTION AT 6+00

EXCAVATION CROSS SECTION AT 10+00

DOWNSTREAM GROUT CURTAIN

GEOLOGIC PROFILE THROUGH

SPECIALIZED TREATMENT ZONE

KENTUCKY LOCK DISPOSAL AREAS 45

Area D (Primary)

Area A (Backfill Stockpile)

DISPOSAL AREA D

EXISTING INSTRUMENTATION

Existing system on US Cofferdam and existing land wall to Monolith EL13

NEW INSTRUMENTATION – EX. LOCK

Alignment Pins (2 per monolith) Inclinometers Tiltmeters Jointmeters Relative Block Movement Device (RBMD) Saw Cuts Load Cells (1 per monolith)

Typical installation pattern

INSTRUMENTATION – DS COFFERDAM

Alignment Pins (2 per monolith) Tiltmeters Jointmeters Relative Block Movement Device (RBMD) Saw Cuts Piezometers Inclinometers

Jointmeter

RBMD

Saw Cut

INSTRUMENTATION – DS COFFERDAM

Alignment Pins (2 per cell) Piezometers Inclinometers

DATALOGGING EQUIPMENT

Datalogger

Solar Panel to power dataloggers

EXISTING LOCK AND DOWNSTREAM COFFERDAM

ANCHORS

File Name

Anchor Locations

EXISTING LOCK ANCHORING– ANCHOR

INSTALLATION

UPSTREAM LOCK – ANCHOR INSTALLATION

UPSTREAM LOCK –

ANCHOR TENSIONING

UPSTREAM LOCK - ANGLED ANCHOR

DRILLING

Overhead obstruction at the existing lock operations building.

EXISTING LOCK ANCHORING

8 feet +/-

BRIDGE DEMOLITION

Bridge Demolition:

1. Former Powerhouse Access Bridge

2. Former P&L Railroad Bridge

3. Former US-62/641 HWY Bridge over

Lock

4. Abandoned US-62/641 HWY Bridge over RR

Plan of Former Access Bridge

X-Section

Support Floor Beam

Counter Weight

DOWNSTREAM STOPLOG SLOT INSTALLATION

Maintenance Building Demolition

Location of new Stoplog Slot

DOWNSTREAM STOPLOG SLOT INSTALLATION

Maintenance Building Demolition

1. Core holes have been pre-drilled

2. Slot will require wire saw cutting

DOWNSTREAM STOPLOG SLOTS

LANDWALL GRATING UPGRADES

Upgrade location

Grating as seen from top of lock wall.

Recent upgrades to river wall

69Downstream Lock Excavation Summary of Known Amendments

• Rotated Maintenance Building

• Changed pipe support bracket heights on lock wall by

SDU contractor

• Stoplog Slots

• Possible additional existing bridge demolition information

CONSTRUCTION LIMITS – CURRENT CONTRACTS

Maintenance Building Demolition

New Maintenance Building

Disposal Area D

Dual Access Corridor

DS Cofferdam Construction Limits

SDU Construction Limits

DS Cofferdam Construction Limits

CONSTRUCTION LIMITS – DOWNSTREAM LOCK

EXCAVATION

File Name

Maintenance Building Demolition

New Maintenance Building

Disposal Area D

DS Cofferdam Construction Limits And Future Lock Excavation Construction Limits

Dual Access Corridor

Initial DS Lock Excavation Construction Limits

DS Cofferdam Construction Limits

Shared Contractor Laydown Area

Disposal Area A