Emergency Repair to the Delaware River Turnpike Bridge
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Delaware River Turnpike Bridge General Information:
Year Built:
1956
Designer:
George S. Richardson
Contractor:
American Bridge
Over:
PA US Route 13, Amtrak Mainline, 3 Local Roads (North Radcliffe, Wood Avenue, Palmer Avenue), Delaware River, River Road
Traffic:
Average Daily Traffic (2014) = 41,551 2
Delaware River Turnpike Bridge 14 Similar Deck Truss Spans of 31 Total Spans Bridge Length Potentially Affected: ⅔ Mile of 1¼ Miles Location of Critical Finding
PA Approach Deck Truss Spans:
NJ Approach Deck Truss Spans:
• 3 Span Continuous Unit: Piers 10 – 13 Total Length ≈ 647’
• 3 Span Continuous Unit: Piers 24 – 27 Total Length ≈ 647’
• 4 Span Continuous Unit: Piers 13 – 17 Total Length ≈ 1078’
• 4 Span Continuous Unit: Piers 20 – 24 Total Length ≈ 1078’ 3
Delaware River Turnpike Bridge New Jersey Turnpike Authority (NJTA) Allied Painting Inc. Cornell & Company Inc. Federal Highway Administration (FHWA) Greenman-Pedersen Inc. (GPI) HNTB Corp. Lehigh University MoreTrench American Corp. NJ Department of Transportation NJ State Police NJ Turnpike Authority (NJTA) Notre Dame PB Americas Inc. STV Inc. WSP /Parsons Brinckerhoff
PA Turnpike Commission (PTC) Federal Highway Administration (FHWA) Laboratory Testing Inc. (LTI) Michael Baker International (MBI) Modjeski & Masters Inc. (M&M) PA Department of Transportation (PennDOT) PA Emergency Management Association (PEMA) PA State Police (PSP) PA Turnpike Commission (PTC) Pennoni Consulting Engineers PKF Construction Purdue Urban Engineers
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Delaware River Turnpike Bridge 4 Span Continuous Deck Truss Unit (Spans 14 to 17)
Location of Critical Finding
Span Length = 269’ 5
Delaware River Turnpike Bridge Location of Critical Finding
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Delaware River Turnpike Bridge Critical Finding
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Delaware River Turnpike Bridge Temporary Splice Installation
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Delaware River Turnpike Bridge Alternatives:
Jack/Permanent Splice (Best Scenario) Jack/Retrofit / Repair / Replace Member Demo/Replace Four Span Continuous Deck Truss Unit Demo/Replace All Deck Truss Units
Forensic Analysis Long-Term Bridge Monitoring
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Delaware River Turnpike Bridge Temporary Support/Jacking Towers
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Delaware River Turnpike Bridge Micropile Foundations
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Delaware River Turnpike Bridge Temporary Support/Jacking Towers
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Delaware River Turnpike Bridge Micropile Foundations
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Delaware River Turnpike Bridge Temporary Support/Jacking Towers
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Delaware River Turnpike Bridge Truss Strengthening
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Delaware River Turnpike Bridge Temporary Support/Jacking Towers
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Delaware River Turnpike Bridge Instrumentation and Load Testing of NJ 4-Span
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Delaware River Turnpike Bridge Instrumentation of PA 4-Span
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Delaware River Turnpike Bridge Vertical Jacking Operations
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Delaware River Turnpike Bridge Vertical Jacking Operations
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Delaware River Turnpike Bridge Vertical Jacking Operations
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Delaware River Turnpike Bridge Removal of Fractured Member/Post Tensioning
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Delaware River Turnpike Bridge Post Tensioning
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Delaware River Turnpike Bridge Final Splice
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Delaware River Turnpike Bridge Lehigh – Material Testing of Fractured Member
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Delaware River Turnpike Bridge Lehigh – Material Testing of Fractured Member
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Delaware River Turnpike Bridge Lehigh – Material Testing of Fractured Member 90 Bridge
Absorbed Energy (ft-lbs)
80 70
1/2 in. FHWA
60
1 in. FHWA
50
2 in. FHWA
40
30 20 10 0 -150
-100
-50
0
50 Temperature-F
100
150
200
250
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Delaware River Turnpike Bridge Lehigh – Material Testing of Fractured Member
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Delaware River Turnpike Bridge Ultrasonic Testing (UT)
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Delaware River Turnpike Bridge Ultrasonic Testing (UT)
U7-U9 Finding
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Delaware River Turnpike Bridge Ultrasonic Testing (UT)
L6-L8 Finding
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Delaware River Turnpike Bridge Hands-On Inspection
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Delaware River Turnpike Bridge Hands-On Inspection
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Delaware River Turnpike Bridge LIDAR Survey
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Delaware River Turnpike Bridge Purdue - Material Testing
PA 4-span
NJ 4-span 35
Delaware River Turnpike Bridge Purdue - Material Testing
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Delaware River Turnpike Bridge Truss Replacement
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Delaware River Turnpike Bridge Best Scenario:
No settlement and confirmation that this is an isolated finding Material testing across entire structure does not show global issue The structural members move as predicted during slow, regulated jacking Sensors installed during instrumentation and analysis show that stresses shift in existing members to acceptable levels during jacking
Permanent splice is installed Complete repairs; load test
Open the bridge to traffic 38
Thank You!!