|Photo: Don Moore|
The course of action planned to the new bridge is to replace the superstructure but use the original laid-up stone abutments. The plan for the superstructure involves steel beams, a concrete barrier, and railings--the "bridge aesthetics." The options represented for the steel beams were either galvanized or painted--galvanized being sort of an aluminum gray, painted being any color desired but requiring maintenance. From the audience, Michael O'Hara suggested a third option: corten, which makes the steel look rusted. That suggestion seemed well received by those in attendance.
The preliminary design for the bridge shows a concrete barrier with simple molded panels with a metal railing on top. (Click the picture below to enlarge it to see the panels.)
Ian Nitschke, advocate for the historic Shaw Bridge in Claverack, and Timothy O'Connor both suggested that that the trusses from the 1905 bridge to be reused in some decorative way on the new bridge, to pay homage to the industrial history of the waterfront. It's hard to imagine how that could be accomplished, though, because the trusses are straight and the roadway of the bridge will have an arc. The arc is required, as is a steeper incline for the approaches to the bridge, because there needs to be greater clearance over the railroad tracks. The bridge is currently 19½ feet above the tracks; the requirement for the new bridge is 23 feet.
From barrier to barrier, the bridge will be about 40 feet wide, with sidewalks on either side, bicycle lanes beside the sidewalks, and two travel lanes for vehicles.
The complete PowerPoint presentation from Monday's meeting can be viewed here. The engineers are soliciting public comments. The form for submitting comments can be found here.
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