Detroit Sources Sought Industry Day Slides with QA.pdf

DETROIT FISH PASSAGE PROJECT:

PHASE 1, SELECTIVE WITHDRAWAL STRUCTURE

Sources Sought Industry Day (Virtual) January 8, 2023

• Introduction, Industry Day objectives, and ground rules

• Overview of the IDaC contracting method

• Purpose and background of Project

• Virtual tour

• Anticipated challenges o Site access and staging o Underwater excavation o In-water construction o Rock anchor and post-tensioned anchor installation o Large gates and valves

• Preliminary schedule

• Contractor Q&A

AGENDA

INTRODUCTION, OBJECTIVES, GROUND RULES

INTRODUCTION

• The Contracting Team for this project is:

Mitchell Johnson (Contracting Officer) mitchell.j.johnson@usace.army.mil

Brian Johnson (Contract Specialist) brian.m.johnson@usace.army.mil

All communications should be directed to the contracting team.

• The Project Manager is David Hamernik

• The Technical Lead is Shari Dunlop Detroit Dam is located on the North Santiam River 48 miles upstream the confluence with the Willamette River and 13 miles upstream of Mill City, Oregon. Detroit Dam is a 450 ft tall, 1,450 ft long concrete gravity dam, comprised of 32 monoliths, with a gated spillway with six spillway gates, four regulating outlets, and a powerhouse

OBJECTIVES

• Develop our acquisition strategy

• Provide an overview of our project to Industry

• Share the challenges the Government anticipates

• Hear the challenges Industry Anticipates

• Understand how we can reduce risk and uncertainty in our project

GROUND RULES

• USACE considers procurement integrity a priority throughout this process, including in these early pre-solicitation exchanges.

• We anticipate informal exchanges of information continuing throughout the acquisition. The exchanges will become more formal as we move into the solicitation phase. Upon issuing the Solicitation, the Procurement Integrity Act applies, and the exchanges become formal.

• If you share proprietary or confidential information in your written response to our sources sought, please identify it so we can take steps to appropriately manage and protect the information.

• USACE is in listening mode. Our Project Delivery Team will use your shared knowledge and information to help us with acquisition planning phase.

• Information provided during this presentation is subject to change. Nothing is final until a formal solicitation is posted.

OVERVIEW OF INTEGRATED DESIGN AND

CONSTRUCTION (IDAC)

OBJECTIVES

Establish common understanding of Integrated Design & Construction (IDaC) contracts, a version of Early Contractor

Involvement (ECI)

WHAT IS IDAC?

• IDaC is an integrated project delivery method that develops a holistic team consisting of the

Government, designer and constructor to complete the project.

• The designer and constructor are under separate contracts with the Government, with the constructor contracted early in design.

• Team members, structure and relationships are essential to IDaC success:

StakeholderUSACE

DOR (AE or In-House)

Consultants Key Subcontractors

IDaC Contractor

WHY IDAC?

Collaborative effort during design and construction between Designer, Builder, Owner, User to increase likelihood of project success

Collective decisions regarding risk can be made early on by the team.

Construction execution and material cost info provided to the Govt.

and the designer while scope and quality (i.e. maximized-value) decisions are being REFINED

Information sharing early facilitates greater understanding among all parties.

TRADITIONAL VS ECI DELIVERY METHODS

DOR

Bid

Finish

DOR

PreCon Svcs Firm Fixed Price Construction Bid

Traditional FFP Administration

FinishFirm Fixed Price Construction

Option RFP

HOW IS IT IMPLEMENTED?

EXAMPLE

ELEMENTS OF IDAC

At the production point the parties negotiate the firm target cost. The firm target profit is established by the formula.

At this point, the parties have two alternatives, as follows:

–Negotiate a firm fixed price, using the firm target cost plus the firm target profit.

–Not award the construction option and compete the project on the open market.

PRODUCTION POINT – WHEN?

Specified in the FPIS Clause FAR 52.216-17 paragraph (c).

The decision is made at the outset of the contract and is based on:

–Design being substantially complete.

–Contractor has completed their final review.

–Currently set at completion of 95% or 100% package.

PRODUCTION POINT – HOW?

Contracting Officer issues RFP to Contractor

Clearly state in RFP requirement of the proposal:

–Cite FAR 52.216-17 paragraph (c).

–State what Drawings & Specifications Proposal is based on –Contractor state allowances, assumptions, clarifications associated with the proposal.

–Submits both pricing proposal (estimate) & updated construction schedule.

–Specify Cost and Pricing Data Requirements

OUTCOME

1. A FFP contract is successfully negotiated.

OR

2. Issue documents to market if negotiations fail.

Preconstruction Services – Firm Fixed Price (FFP) Integration & Collaboration w/ Construction Manager Construction Option established at award Initial Target Cost + Target Profit = Initial Target Price Ceiling Price Share Ratio and Profit Adjustment Incentives Only exercised Bilaterally Construction must be definitized FFP prior to execution

Off-Ramp and re-advertise (If Needed) Early Work Packages (FFP determined at award) Potential Examples Clearing, Grubbing, Site Development, Testing Long Lead Procurement Items

IDAC SUMMARY

Integrated Design and Construction FAR 52.216-17 (IDaC - Deviation)

QUESTIONS

PURPOSE AND BACKGROUND

• Project Genesis o National Oceanic and Atmospheric Administration’s (NOAA) 2008 Willamette Biological Opinion (NOAA

BiOp)* o Identified Reasonable and Prudent Alternatives (RPAs) that require:

Temperature control of water downstream of dam Juvenile fish passage downstream of the dam

*New BiOP anticipated in December 2024.

ENVIRONMENTAL COMPLIANCE

• Fish Collection Facility Project – 2 Phases o Phase 1: Selective Withdrawal Structure

(subject of this Sources Sought) Provides gravity water supply for a Floating Screen Structure Provides means to achieve downstream temperature targets o Phase 2: Floating Screen Structure (not included in this Sources Sought) Provides means to collect juvenile salmonids for transport past dam o To date, the design for Phase 1 and Phase 2 have been progressing on separate but parallel paths o Construction of the FSS is expected to lag the SWS construction by about 4 years

PROJECT PHASING

Looking downstream at the dam, SWS and FSS. Reservoir water removed.

Dam

N

Q

VIRTUAL TOUR

• Project location

• Project overview

• Google Earth

• Virtual tour

PROJECT LOCATION

Detroit Dam is located in the Cascade Mountains of Oregon, approximately 100 miles south of Portland

PROJECT OVERVIEW

Upstream Face Downstream Face

• Google Earth

VIRTUAL TOUR

• Salem is the closest major city

• Portland is the closest international airport

• Access from Portland is via I-5 (major interstate highway) and OR-22 (state highway)

• Detroit Powerhouse

• 3D PDF

ANTICIPATED CHALLENGES

Site Access and Staging

• Access from Highway 22

• Roadway on top of the dam o Can be closed for staging o Loggers need notice o Red Flag forest fire access

• Parking Lot o Can be closed for staging

SITE ACCESS AND STAGING

N

Tower Location

• Detroit Dam Powerhouse Road and Yard

• Can be used for staging

• Wide spots along the road

• Downstream Bridge

• Potential for improvements to the southern road up to top of dam

SITE ACCESS AND STAGING

Downstream Bridge

• Detroit Dam Original Access Road

• Potential for use as a boat ramp

SITE ACCESS AND STAGING

N

Detroit Dam

Potential Boat Ramp

• Mongold Boat Ramp o Upstream 2.5 miles o Requires coordination with USFS o Summer closure would be unpopular

SITE ACCESS AND STAGING

In-Water Construction

• The reservoir will operate normally during construction o High pool from May to August o Low pool from December to January

IN-WATER CONSTRUCTION

Low Pool

1450' NGVD 29

High Pool

1563.5' NGVD 29

279’ Tall

Geological and Geotechnical Considerations

• The site is generally underlain by intrusive volcanic rock and other volcanic/sedimentary rock

• The geologic section below [Pungrassami 1969] was drawn upstream of the dam so the topography is different, but geologic units and layering are similar

SITE GEOLOGY

• Incised River Channel Monolith 19 Upstream View (left) and Right Abutment Highway (right)

SITE GEOLOGY

• Robust exploration and testing programs from the time of original construction

• Mostly focused on the dam foundation, but the data is useful for this project

EXPLORATIONS & DATA

Property Number of Tests Minimum Maximum Average

Small Intact Core Specimens Specific Gravity 22 2.57 2.82 2.67 Absorption 22 0.05% 1.36% 0.59% Compressive Strength 26 6,130 psi 48,200 psi 15,450 psi Shear Strength Shear Resistance (s) S = 1000 psi + 1.15 (Normal Load) Angle of Friction (φU) (φU) = 49 degrees Apparent Cohesion (CA) CA = 1,000 psi Intact Rock (Unjointed) Modulus of Elasticity 8 6.84x106 psi Poisson’s ratio 4 0.217 Rock Quality Designation (RQD) Range 75 to 100%

• Foundation loads are relatively light compared to the existing dam so bearing capacity in the competent rock will be sufficient

• Temporary rock cut stability is favorable

• Rock is moderately hard to hard; average UC=15,450 psi, but max is 48,200 psi

• BOE from el. 1290’ to 1210’ and minimum flood pool el. 1,450’ so 200+ feet of water

• At closest point, grout curtain is within 40’ of the foundation footprint

• Considering either an on-grade foundation or drilled shafts

• Bottom of excavation or bottoms of shafts will need to be clean before concrete placement

• For an on-grade foundation, stepped excavation will require controlled blasting.

– Pre-splitting and small charges will be used to minimize disturbance to foundation rock and nearby grout curtain (within ~40 feet)

– A stringent vibration monitoring program will be required

GEOTECHNICAL CONSIDERATIONS–SWS

• Excavation required only to provide draft for the FSS

• No bearing capacity requirements

• No concrete placement

• Maximum allowable grade line governs

• Rock cut stability is favorable, so no rock reinforcement is necessary for 1H:1V cut

• Overburden (talus) removal required upslope of the FSS to minimize accumulation of material in the FSS footprint

• Rock is moderately hard to hard; average UC=15,450 psi, but max is 48,200 psi

• BOE el. = 1370’ and minimum flood pool el.=1,450’ so 80+ feet of water

• Controlled blasting is the preferred method for excavating

• Blasting plan should include pre-splitting, small charges to excavate in lifts and a stringent monitoring plan

• Grout curtain is within 40 feet of the excavation and drain curtain is only slightly further

• Tight clearance between upstream face of dam and edge of excavation

GEOTECHNICAL CONSIDERATIONS–FSS

• Rock excavation may also be required on downstream side of the dam, near penstock and powerhouse

• Dependent on site access requirements and bifurcation pipe plan

GEOTECHNICAL CONSIDERATIONS–OTHER

Structural: Tower Foundation, Rock and Post-Tensioned Anchor Installation and Other Challenges

• Concrete foundation construction challenges:

o Debris removal o Rock excavation at the dam upstream face o Formwork at the foundation for tremie concrete o Placement at the depth of about 250 feet of water

Concrete Foundation

Isometric, Looking Down Stream

CONCRETE FOUNDATION CONSTRUCTION

• Drilled shaft construction challenges:

• Barge access for installation

• Pile cap construction at the depth of about 250 feet of water

• Post tensioning the precast blocks

Drilled Shafts, Elevation Isometric, SWS with Drilled Shafts

DRILLED SHAFT FOUNDATION CONSTRUCTION

• Challenges for wall construction between the precast blocks and the face of the dam:

o Reinforcement placement o Formwork for the tremie concrete placement

SWS Section

WALL CONSTRUCTION

SWS Section

Flow

• SWS will have negative impact on the stability of monoliths 22 and 23 during seismic events o Rock anchors to be installed for stability

Dam Cross-Section of Monolith 22 or 23 with Rock Anchors

DAM STABILITY

Large Gates and Valves

• Large diameter pressure pipe fabrication and valve installation o Pipe diameters range from 18 ft -13 ft o Self-closing butterfly valve with a diameter up to 15 ft o Gate valve diameter up to 15 ft o Fixed cone valve diameter of 6 ft o Large thrust block o Constrained installation area

BYPASS DISCHARGE SYSTEM

BYPASS DISCHARGE SYSTEM ACCESS

• Site access via HWY 22

• Mid-level unimproved roadway

• Low-level powerhouse area

• Approach road bridge to unimproved roadway

• Large fabrication transport

• Limited space for onsite installation and assembly

• Plant outage coordination and meeting flood management requirements

Google Earth image

SWS GATE SYSTEMS- LIG

LIG (Low Intake Gate)

• Single vertical gate o 10 ft long o Modulating service o Inflow protected by trash racks

Construction challenges

• Guide alignment precision must be maintained during in the wet construction o Seal contact maintained throughout travel range o Fitment issues during commissioning will be difficult to solve o Hoist system footprint must be minimized o Guides located in congested area

SWS GATE SYSTEMS- HIW

HIW (High Intake Weir)

• Telescoping gate system o 60 ft long vertical roller gate segments o 3 staggered segments o Recessed gate pocket in the lowest position o Operated by chain and sprocket o Overflow weir operation o Inflow protected by trash racks o Must integrate with future FSS installation

Construction challenges

• Guide alignment precision must be maintained during “in the wet” construction o Seal contact maintained throughout travel range o Fitment issues during commissioning will be difficult to solve o Guides are in congested areas o FSS connection feature coordination

Flow

Section of dam intake – SWS not shown.

DAM SAFETY

• General o Detroit Dam is a high-hazard dam that protects downstream communities from flooding

• Dam operation o Construction must be conducted such that we can safely pass a flood

• Seepage control o Grout curtain and foundation drains under the dam o Design and construction of the SWS or FSS must not negatively impact seepage control features

• Monitoring o Enhanced dam safety monitoring required during construction

DAM SAFETY CONSIDERATIONS

ANTICIPATED SCHEDULE

• Selective Withdrawal Structure o Solicitation – December 2024 o Award – June 2026 o Pre-con services duration ~ 2.5 years o Construction duration ~ 3.5 years?

o Deadlines dependent upon BiOP

• Floating Screen Structure o Solicitation - August 2030 o Award - December 2030 o Construction complete - 2036

SCHEDULE - PRELIMINARY

Looking downstream at the dam, SWS and FSS. Reservoir water removed.

QUESTION AND ANSWER SESSION

Question #1. Does IDaC do away with Cost Accounting Standards(CAS)?

Answer #1. IDaC is a form of Early Contractor Engagement which does not rely on CAS because the pre-construction services are a FFP at contract award. There are other forms of Early Contractor Engagement which do require CAS compliance. However, not all firms are able to comply with CAS which is a barrier to competition.

Question #2. What Design Percentage is the Ceiling Price based on?

Answer #2. This will vary from project to project. For the Detroit SWS certain area’s of design will be mature and the DOR will need less input. The main areas the government is focused on is underwater constructability and underwater demolition.

Question 3. What is the Funding Status for the Project?

Answer 3. Currently USACE has budgeted funding for the Design Services. Funding is not present for the construction options at this time. However, this project is the result of a Biological Opinion regarding fish passage and is a high priority for funding.

Question 4. Has a Set Aside Strategy been established at this time?

Answer 4. No, the Set Aside Strategy will be a product of market research. Both large and Small Business are encouraged to submit written responses to the sources sought. Small Business must establish that they have the capability to perform the work within the limits of subcontracting to be considered for a Set Aside. This is a large and very complex project. The previous iteration from 2019 was planned as a full and open acquisition.