chef menteur bridge and approaches 0 and... · stage 0 feasibility study and stage 1 environmental...
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Chef Menteur Bridge and
Approaches
Louisiana Transportation
Conference 2013
Lynn Maloney-Mújica, AICP
Imagine the result
Stage 0 Feasibility Study
and
Stage 1 Environmental Assessment
Bridge Replacement Project
Chef
Menteur
Bridge and
Approaches
FAP and SP
No.
H000263
Deficiencies
Related to
Age and
Design
• Lack of
Shoulders
• Narrow travel
lanes
• Stopping sight
distances
• Load posted
• Reduced speed
© 2012 ARCADIS 27 February 2013 11
Needs
• Meet current standards for
design and structural capacity
• Improve operational efficiency
of US 90 for transportation and
as an alternative evacuation
route
• Address operational reliability
and reduce maintenance costs
• Raise roadway above surge
elevation
• Improve utility for bicyclists
• Feasibility
• Environmental Checklist
• Public Outreach
• Alternative Alignments
• Navigational Clearances
Sta
ge
0
National Environmental Policy Act (NEPA) Review
–Environmental Assessment (EA)
– Impact Analysis
–Public and Agency Involvement
–Line and Grade
–Finding of No Significant Impacts (FONSI)
–Decision Documentation
Sta
ge
1
© 2012 ARCADIS 27 February 2013 26
Historic and Archaeological
Resources
• Fort Macomb Structure
• Fort Macomb NRHP Property
• Archaeological Sites
• Historic Bridge
© 2012 ARCADIS 27 February 2013 29
Threatened and
Endangered
Species
© 2012 ARCADIS 27 February 2013 30
• West Indian
manatee
• Gulf sturgeon
• Green sea
turtle
• Kemp’s ridley
sea turtle
• Loggerhead
sea turtle
Protected
Species
© 2012 ARCADIS 27 February 2013 34
Historic Resources Historic
Resources
• Historic Bridge
• Fort Macomb
Structure
• Fort Macomb
Property
• Archaeological
sites
© 2012 ARCADIS 27 February 2013 37
Permits, Mitigation, and
Commitments
• Coastal Use and Wetlands
Permit
• New Bridge Permit
• Protective measures
during construction
• Memorandum of
Agreement
• Marketing the Bridge
• Historic American
Engineering Record
(HAER)