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ABC OF BRIDGE NO. 465 I-195 Ramp (Dr-2) Over Warren Avenue FHWA Rhode Island Showcase October 30, 2014
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Presentation Outline
• Overview of the Project Scope
• ABC Project Planning
• ABC Design & Construction
• Construction / Contractor Perspective
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FHWA Every Day Counts Initiative Designed to identify and deploy innovation aimed at shortening project
delivery, enhancing the safety of our roadways and protecting the
environment.
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RIDOT Goals • Safety
• Innovative
• Using Accelerated Bridge Construction Methods • Precast substructure, PBE’s
• Minimize Time • Road closure eliminated phasing
• Cost Effective • Balanced accelerating construction with user costs
• Efficient Intermodal Transportation Network
• Restored link from East Bay to Providence Crossing
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RIDOT Goals (Continued) • Public Attentiveness
• Minimize Public Impact • Replace in 20 days with ABC, 2+ years conventional
• Increase Public Awareness • City Officials • Attended Council Meeting • Outreach through multiple media venues: radio,
social, paper, internet, link to web cam on DOT website, door to door with handouts
Overview of the Project
Scope
Accelerated Replacement of Bridge No. 465 I-195 On-Ramp (DR-2) over Warren Avenue
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Site Location WB I-195 EB I-195
Bridge 465
TAUNTON AVE N
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Summary of Existing Bridge
• BRIDGE SUPERSTRUCTURE: Precast Prestressed Concrete I-beams and Reinforced concrete Tee beams
• BRIDGE SPAN: 3 simply supported spans of 31’ – 1 3/8” (span 1) 61’- 1½” (span 2), 31’ – 1 3/8” (span 3)
• BRIDGE WIDTH: 23’ – 0” curb to curb, 28’ – 2” out to out
• SUBSTRUCTURE: Unreinforced concrete gravity abutments on piles and two column reinforced concrete bents on piles
• BRIDGE SKEW: 25o – 9’ – 6”
• BRIDGE SIDEWALKS: Safety walks on both sides
• ROADWAY SURFACE: 3” bituminous wearing surface
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Existing Bridge Condition
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Overview of Project Scope • Bridge 465
• Replace Superstructure & Piers • Evaluate Abutments • Consider Feasibility of ABC Methods
• I-195 Westbound On-Ramp Approaches • Full Depth Construction for Bridge
Replacement • Guardrail Replacement • Pavement Milling & Overlay
• Warren Avenue • Sidewalk Replacement • Wheelchair Ramp Upgrade • Pavement Milling & Overlay
TAUNTON AVE
N
Bridge 465
WARREN AVE ON-RAMP
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Why ABC for New Bridge? • No phase construction option due to narrow 23’ – 0” roadway width
• Significant reduction of bridge closure time
• Detour options available
• Reduce impact to traffic and the public
ABC
Project Planning
Accelerated Replacement of Bridge No. 465 I-195 On-Ramp (DR-2) over Warren Avenue
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FHWA Framework for Decision-Making
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Rapid Onsite Construction Factors • High Traffic Volumes YES
• Emergency Replacement Necessary YES
• Evacuation Route NO
• Required Lane Closures / Detours YES
• Impact on Total Project Critical Path YES
Use Prefabrication
One Month Duration Closure of
On-Ramp over Warren Ave
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Closure of I-195 On-Ramp (Bridge 465)
Closure of On-Ramp over Warren Ave & Closure of
Warren Avenue below Bridge 465
(including sidewalks)
Closure of I-195 Off-Ramp (Exit 5)
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Closure of Ramps – Two Weekends
Two Weekends
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Milestones • #1 Weekend Closure – Demolition
• Re-Open Warren Ave and Exit 5 Ramp
• #2 Weekend Closure – Place Superstructure • Re-Open Warren Ave and Exit 5 Ramp
• #3 One Month Duration - Complete Bridge Construction • Re-open On-ramp Traffic Over Warren Avenue
• #4 Substantial Completion • Complete All Work for Bridge 465 And Warren
Avenue.
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Incentive / Disincentive • #1 Completion of Weekend Closure #1 - $400 Per Hour
• Maximum Incentive $20,000
• #2 Completion of Weekend Closure #2 - $400 Per Hour
• Maximum Incentive $20,000
• #3 Bridge Open to Traffic – $12,000 Per Calendar Day
• Maximum Incentive $120,000
Liquidated Damages Substantial Completion – $1,500 Per Day
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Incentive / Disincentive • Vehicle Operating Cost
• Value of Travel Time Savings
N Bridge 465
P
ABC Design & Construction
Accelerated Replacement of Bridge No. 465 I-195 On-Ramp (DR-2) over Warren Avenue
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Overview map
Bridge 465 Constructed in 1959
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Bridge 465 – LBG Scope of Work • Replace Superstructure & Piers
• Analyze Abutments & Wingwalls for LRFD Compliance
• Revise profile to meet 14’-3” Minimum Clearance
• Consider ABC Methods
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Bridge 465 – Proposed Improvements & Deviation from Original Scope
Full Bridge Replacement:
• Replace Superstructure
• Replace Abutments
• Replace Wingwalls
• Replace Pier Cap, Columns & Footings
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Project ABC Methods and Techniques
Prefabricated Bridge Elements &
Systems (PBES)
Modular Construction
Structure Erection
Techniques
Geotechnical Techniques
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STEEL BEAM
Bridge 465 – Prefabricated Elements
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Bridge 465 – Prefabricated Elements
PRESTRESSED CONCRETE BEAMS AND PRECAST DECK PANELS
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Bridge 465 – Prefabricated Elements
NEXT BEAM
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Bridge 465 – Prefabricated Elements
Prefabricated Substructure
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Bridge 465 – Proposed Single Span Option
29
80’
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Bridge 465 – Laydown Areas
B
B
A
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Proposed Transverse Section
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Superstructure Modular Unit
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Superstructure Modular Unit
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FOUNDATION SUPPORT IMPROVEMENTS
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Proposed Abutment
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North Abutment Foundation
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North Abutment Foundation
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Abutment Footing Closure Pour
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Abutment Footing Closure Pour
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Precast Wingwall Footing
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Precast Abutment Stem Elements
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Precast Abutment Stem Elements
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Precast Wingwall Stems & Footings
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Precast Wingwall Stems & Footings
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Completed Precast North Abutment
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Completed Precast North Abutment
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• Install bearing assemblies. • Install superstructure modular units. • Install diaphragms between beams S2 and S3. • Form and place the reinforcement and concrete for the superstructure closure pour. • Place the precast approach slabs and place the reinforcement and concrete for the
approach closure pour. • Form and place concrete for the safety barrier closure pour. • Place the approach roadway base material. • Place the bridge wearing surface. • Install the strip seal at the north abutment and saw cut pavement and the south
abutment.
Remaining Construction
Construction / Contractor Perspective
Accelerated Replacement of Bridge No. 465 I-195 On-Ramp (DR-2) over Warren Avenue
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History
XXX
• Fit for Aetna Bridge
• Incentive/Disincentive
• Duration of Project
Factors Considered Pre-Bid
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XXX
• Proper Planning
• Communication with Owner/Engineer
• Capable Resident Engineer
• Quality Subcontractors
Key to Success
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XXX
• Tolerances for Precast
• Time Allowed for Submittals
• Precasters Preparedness (mass concrete, 3D
modeling, schedule, etc)
• Area for Construction (equipment, fill, etc)
• Unknowns – weather, equipment
breakdowns, etc.
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Challenges
Thank You
David Fish, P.E. Managing Engineer, RIDOT
Jessica Rodas Project Manager, RIDOT
Phineas Fowler, P.E. Principal Structural Engineer, Louis Berger
John Fitzgerald, P.E. Senior Structural Engineer, Louis Berger
Jeffrey Bostock Vice President, AETNA Bridge Co.
www.dot.ri.gov www.facebook.com/ridotnews @ridotnews
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