replacement of the bailey avenue bridges over cazenovia ... · • demolition of the existing...
TRANSCRIPT
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24th Statewide Conference on
Local Bridges
October 24th, 2018
Replacement of the Bailey Avenue Bridges
over Cazenovia Creek & Buffalo River
1
NYSDOT PIN: 5756.34
BIN’S: 2028320 & 2028330
Presented by:
Andrew L. Odien, P.E.
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• Site History & Project Background
• Project Goals
• Design Challenges
• Construction Challenges
• Learning Assessment
• Acknowledgements2
Outline:
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Project Location:
3
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Existing Conditions – Cazenovia Creek Bridge:
4
100’
150’ Channel Elevation Looking West
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Existing Conditions – Buffalo River Bridge:
5
190’
230’ ChannelElevation Looking West
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Channel Constrictions & Ice Jamming:
6Incoming Ice
LooingEast fromCazenoviaCreek Bridge
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Channel Constrictions & Ice Jamming:
7Cazenovia Creek Bridge Buffalo River Bridge
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Existing Highway Geometry:
• Broken-back curves
• Curves with radii smaller than accepted minimum
• High accident rates
Existing Radii = 250’
Existing Radius = 230’
Existing Bailey Avenue Alignment
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• Replace existing structurally deficient bridges.
• Lessen channel constrictions to improve hydraulic
openings & reduce ice jamming.
• Improve highway geometrics by eliminating broken back
curves and increasing curve radii.
• Maintain two-way, four lane traffic on high volume
commuter route.
Project Goals:
9
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Preliminary Alignments:
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Proposed Cazenovia
Creek Bridge:
• Single span rigid frame
• Incorporated alignment
curvature
• Existing South & North
abutments to be
removed
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12
Proposed Buffalo
River Bridge:
• Single Span
Simply Supported
Girders
• Existing south
abutment to be
removed.
• Existing north
abutment to
remain.
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Proposed
Bridge Sections:
• 9 composite
plate girders
spaced at 8’-8”
• Cross frame type
diaphragms used
• Public & private
utilities carried
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Alignment Impacts on Cazenovia Creek Bridge:
• Bridge profile
tangent
• Partial horizontal
curvature on
bridge
• Roadway
curvature +
tangent framing
= vertical curve
camber
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Impacts to Adjacent Parkland:
Land Provided To Erie County
Original Park Foot PrintNew Peninsula Park Foot Print
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• 8’x8’ Concrete Box
• Realignment
impractical
16
• Replace with new
precast box culvert,
built through new
Buffalo River Bridge
North Abutment &
Steel Sheeting
Conflict With
Combined
Sewer Outfall
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Incorporation of Outfall in North Abutment:
Existing Proposed
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Excavation Protection & Shoring:
18Cazenovia Creek Bridge South Abutment
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Excavation Protection & Shoring:
Buffalo River Bridge
North Abutment
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Substructure Design – Cazenovia Creek Bridge:
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Foundation Design – Buffalo River Bridge Pile Plans:
North Abutment - 85 H-Piles
New Piles Placed to Avoid Existing Outfall Structure Timber Piles
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Bidding & Award:
• Advertisement: Early Spring 2016
• 4 Bidders
• Bid Opening Held: April 19, 2016
• Low Bid: $ 18,888,887.50 ($1.3M under EE, $1.1M
under Median Bid)
• Contractor: Union Concrete and Construction
Corporation
• NTP: August 2016
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Field Changes:
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NYSDOT STEEL BRIDGE RAILING
(FOUR RAIL)
TEXAS AESTHETIC
CONCRETE BRIDGE BARRIER
• Change affected controlling member (Fascia Girder)
• Lightweight Concrete Substituted
• Steel Bridge Railing to Texas Aesthetic Concrete Bridge Barrier.
85 LB/FT 510 LB/FT
500% RailingSDL Increase
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Field Changes:
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• Shoring Design Changes – Buffalo River North Abutment• Soil Anchors Changed to Rock Anchors to Quantity
Contract Detail Field Change
Tied-back Sheeting Wall
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Soldier Pile Wall At Outfall
Field Changes:
25
• Shoring Design Changes – Buffalo River North Abutment• Tied-back Soldier Pile Wall Around Outfall Changed to Braced Sheeting
Contract Detail Field Change
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Dewatering:
26
• Constant
battle at all
excavations
• Worst at
Buffalo River
North
Abutment
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Winter Concreting:
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Erection:
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• Heavy girders picks + long stick lengths = 2 cranes + mid-air splices• Buffalo River Girders = 229.5’ long x 165,000 LB (total wt.)
• Buffalo River “A” Girders = 134.5’ long x 95,000 LB (segment)
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Erection:
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• Bracing of the first girder installed at the Buffalo River bridge.
Bracing was attached to existing adjacent bridge.
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Demolition:
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• Demolition of the existing bridges presented their own
challenges due to the enormous weight of the existing
built-up, riveted girders.• Cazenovia Creek Bridge Existing Girders = 72 Tons
• Buffalo River Bridge Span 1 Girders = 45 Tons
• Demolition of the Buffalo River bridge was further
complicated by the presence of a counterweight that
had the potential to rotate.• Buffalo River Span 2 Girders = 48 Tons
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Demolition – Cazenovia Creek Bridge Girders:
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Demolition – Buffalo River Bridge Bascule Girder:
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Counter-weight
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Demolition – Buffalo River Bridge Bascule Girder:
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Demolition – Buffalo River Bridge Bascule Girder:
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Finished Bridges:
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Finished Bridges:
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Finished Bridges:
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Finished Bridges:
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Acknowledgements:
Michael Finn – City Engineer - City of Buffalo
Seyed Ghasemi – Project Manager - City of Buffalo
Union Concrete Construction Corporation
Art Salvati – Resident Engineer - CHA
Bernard Rias – Office Engineer - CHA
Frank DelSignore – CHA Project Manager
Garret Hoffmann – CHA, Structures
Dory Marsh – CHA, Highway
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Learning Assessment:
• What was one of the project goals?• Replace existing bridges, improve hydraulic openings,
improve highway geometrics, maintain traffic during construction
• What type of structure was the Proposed Cazenovia Creek Bridge?• Rigid Frame (Tall Integral Abutments)
• What was the percentage railing dead load increase due to the field change from Steel 4-Rail to Texas Aesthetic Concrete Bridge Barrier?• 500% 40
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Questions and Answers
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