1 HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Chincoteague Project Overview HARDESTY & HANOVER, LLP E N G I N E E R I N G Henri Sinson, PE Virginia Concrete Conference March 6, 2008 Long Life Aspects HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Presentation Goals • Project Overview • Site Conditions • Scope • Alignment • Constructability • Bascule Span Highlights • Approach Substructure • Satisfied Aesthetic Requirements • Satisfied Subsurface Conditions • Details for Long Life • Approach Superstructure • Satisfied Aesthetic Requirements • Details for Long Life • Innovation for Efficiency • Innovation for Long Life HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Project Overview • Bridge on Rte 175 Over Black Narrows and Lewis Creek Channel • Accomack County and Town of Chincoteague, Virginia • 4035’-0” low level bridge • 123’-6” single leaf bascule span • 729’-0” low level connector bridge • Owner: VDOT • Designer: Hardesty & Hanover, LLP • Contractor: American Bridge • Contractor Bid: $68.7 million HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Site Conditions Town of Chincoteague & Marsh Island Old Chincoteague Bridge HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Site Conditions Marsh Island Chincoteague Island Channel Old Chincoteague Swing Bridge Old Black Narrows Bridge Site Plan HARDESTY & HANOVER, LLP E N G I N E E R I N G Virginia Concrete Conference, Chincoteague Project Overview Scope Marsh Island Chincoteague Island Channel 4035’-0” Old Chincoteague Swing Bridge 729’-0” Old Black Narrows Bridge New Single Leaf Bascule New Rte 175 Bridge New Marsh Island Connector Bridge Site Plan
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HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Chincoteague Project Overview
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Henri Sinson, PE
Virginia Concrete Conference
March 6, 2008
Long Life Aspects
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Presentation Goals
• Project Overview• Site Conditions• Scope• Alignment• Constructability
• Bascule Span Highlights• Approach Substructure
• Satisfied Aesthetic Requirements• Satisfied Subsurface Conditions• Details for Long Life
• Approach Superstructure• Satisfied Aesthetic Requirements• Details for Long Life• Innovation for Efficiency• Innovation for Long Life
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Project Overview
• Bridge on Rte 175 Over Black Narrows and Lewis Creek Channel
• Accomack County and Town of Chincoteague, Virginia
• 4035’-0” low level bridge
• 123’-6” single leaf bascule span
• 729’-0” low level connector bridge
• Owner: VDOT
• Designer: Hardesty & Hanover, LLP
• Contractor: American Bridge
• Contractor Bid: $68.7 million
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Site Conditions
Town of Chincoteague & Marsh IslandOld Chincoteague Bridge
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Site Conditions
Mar
sh Is
land
Chinco
teague I
sland
Cha
nnel
Old ChincoteagueSwing Bridge
Old BlackNarrows Bridge
Site Plan
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Scope
Mar
sh Is
land
Chinco
teague I
sland
Cha
nnel
4035’-0”
Old ChincoteagueSwing Bridge
729’-0”
Old BlackNarrows Bridge
New SingleLeaf BasculeNew Rte 175 Bridge
New Marsh IslandConnector Bridge
Site Plan
2
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Alignment
Mar
sh Is
land
Chinco
teague I
sland
Cha
nnel
4035’-0”
729’-0”
Site PlanNew SingleLeaf BasculeNew Rte 175 Bridge
New Marsh IslandConnector Bridge
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview
Constructability
Mar
sh Is
land
Chinco
teague I
sland
Cha
nnel
4035’-0”
729’-0”
Site PlanNew SingleLeaf BasculeNew Rte 175 Bridge
New Marsh IslandConnector Bridge
HARDESTY & HANOVER, LLPE N G I N E E R I N G
Virginia Concrete Conference, Chincoteague Project Overview