Final Alternative 1 –
Steel Tied Arch
q Main Span is 450
ft. over River
q Height of Arch
is approximately
120 feet above Deck
q Estimated Cost
in 2010 is $315 M
(6% Higher than $297 Budget)
q Anticipated
Maintenance
Requirements - Medium to High;
Painting of Steel
q Ability to
Accommodate Future
Parallel Structure - Good
