accelerated bridge construction in connecticut
TRANSCRIPT
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Accelerated Bridge
Construction in
Connecticut
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State Project No. 131-194/195
Rehabilitation of Bridge Nos. 01235 and 01236
I-84 over Marion Ave
Southington, Connecticut
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CTDOT TEAM
Design
Ajit Gokhale, P.E., Close, Jensen & Miller, P.C
Andrew Lessard, P.E., Stantec Consulting Services, Inc.
Louis Bacho, P.E., CTDOT
Mary Baker, P.E., CTDOT
Construction, CTDOT Mohammed Bishtawi, P.E.
Joe Calafiore
Shawn Mangan
Terri Thompson
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Bridge 01235 EB
Bridge 01236 WB
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Bridge 01235 (EB) East Elevation
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Bridge 01236 (WB) West Elevation
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Bridge 01235 cracking
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Bridge 01236 G7 spall beam end
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Design Options superstructure replacements
• 3 stages maintaining 2 lanes
$6.5 M, 18 months
• Widening maintaining 3 lanes
$8.0 M, 24 months
• Temporary bridge and crossover, 3 lanes
$7.3 M, 24 months
• Closure using SPMTs
$7.0 M, 230 days
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Selected methodology
• Replace two deficient superstructures
• Utilize SPMTs
• 56 hour maximum closure of I-84
• Implement ABC to minimize impact to
residents and businesses
• Safe work zone
“Get In, Get Out, and Stay Out”
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Existing and Proposed Bridge Sections
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WB
EB
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Aspire Magazine Summer 2015
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Informational meetings
• Public info in Design, October 2011
• Pre-bid conference, March 2013
• Town staff meeting, January 2014
• Reporter at jobsite, March 2014
• Traffic Coordination, SPD, April 2014
• Town Council Meeting, May 2014
• Public info in Construction, May 2014
• Project site visits , May-June 2014
• Merchant meeting, June 2014
• DOT Manager meeting, June 2014
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Public Outreach
• Neighboring states: NY, MA, RI
• Emergency Management Coordinators -
DESPP
• Federal Law Enforcement Agencies
• Chambers of Commerce - local businesses
• Trucking companies, hospitals, major
venues
• Local residents and EMS
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Detour west of project
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I-84 Detour Plan
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Regional And Local Variable Message Board Activation
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Newspaper Coverage
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Commissioner James P. Redeker
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CONTRACTOR
Northern Construction Service, LLC
Weymouth, MA
Project awarded on June 7, 2013
Contract Amount: $6,031,429.40
Est. Revised Contract Amount: $7,400,000
Sean Hoey, Project Superintendent
Shawn Clark, Project Manager
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Contractual Items
• Liquidated Damages
– Exceeding Calendar Days
– Lane Closures (other than weekend closure)
– Weekend Closure
• Incentives
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Contractual Items
Liquidated Damages – Weekend Closure
• $100,000 per hour for each direction of I-84,
for each hour, or any portion thereof
• The aggregate amount of LDs assessed during
the shutdown period shall not exceed
$1,000,000
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Contractual Items
Incentives
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Construction Staging
• Stage 1 – Median Wingwall Parapets
• Stage 2 – Outside Wingwall Parapets
• Stage 3 – Rapid Replacement of Superstructures
• Maintain 3 lanes of traffic in I-84 during Stages 1 & 2
• Construct New Superstructures off-line during Stages 1 & 2
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Stage 1
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Stage 2
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WB
EB
WB
EB
•BSA2
•BSA1
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WB
EB
EB
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Closure Schedule Friday, 6/27/14
9 am – Southington Rest Area, I-84 East Closed
5 pm to 9 pm - I-84 Exit 30 Off and On Ramps Closed
Marion Avenue closed at ramps- no through traffic
6 pm - One lane taken on I-84 East at Exit 27 (I-691)
7 pm - One lane taken at Exit 31 (Rt 229)
8 pm - Two lanes taken at EB Exit 27 and WB Exit 31 with one travel lane open
9 pm - I-84 Closed, one lane of traffic off at Exit 30 and Exit 29 On and Off Ramps at Route 10 Closed
Monday, 6/30/14 5 am
I-84 OPEN ALL LANES IN BOTH DIRECTIONS and I-84 East Southington Rest Area reopens
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Demo Plan W.B
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Demo procedure W.B
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Making It On Time
• Traffic Management Unified Command Center
• DOT CHAMP (CT Highway Assistant Motorist Patrol) vehicles
• Incident Management response
• Traffic Management Plan
• Contractor Contingency plan
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Detour Notification Strategies
• Use Intelligent Transportation System (ITS)
technology
• Cameras, Message Boards, Advisory Radio
• Massachusetts, Rhode Island, New York,
and New Jersey travel alert systems
• Officers located at project site and along
detour routes
• Local Fire and Police paid through the DOT
project
• Project Website
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Lessons Learned
• Lighter weight superstructure
• Max grade for SPMTs
• Adequate travel path width
• Incentive/disincentives
• Advance utility/IMS relocation
• Local review of traffic plan
• Consider use of alternate bids and alternate contracting method to allow innovation and minimize risk for stakeholders.
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Lessons Learned
• Time for Working Drawing Review
• More detailed TMP
• Staging area – contract items
• Bearing plate shims
• Contractor Survey
• DOT Construction project conflicts
• Site Accessibility
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Bridge Opening EB: Sunday 4:40 p.m.
WB: Sunday 8:15 p.m.
CTDOT Successful Completion
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CTDOT ABC Look ahead
• PBUs – Route 4, Harwinton
• GRS-IBS abutments – I-84 off-ramp, Manchester
• Slide – I-95, Waterford
• SPMTs -Route 1 over I-95, Stamford
• SPMTs – Metro North RR over Atlantic St., Stamford
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ABC Decision Matrix - Implementation
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Contact Information
Mr. Timothy D. Fields, P.E.
Principal Engineer
(860) 594-3217 or [email protected]
Ms. Mary E. Baker, P.E.
Supervising Engineer
(860) 594-3402 or [email protected]
Mr. Mohammed Bishtawi, P.E.
Supervising Engineer
(860) 258-4617 or [email protected]