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  • Fastener and Concrete Rehabilitation Recommendations for the Stillwater Lift Bridge

    Recommendations on rehabilitation to the Stillwater Historic Lift Bridge’s fasteners and historic concrete. The concrete is part of a historic concourse associated with the bridge, as well as spans 1 and 2. This section also addresses the replacement and use of rivets in key visible locations instead...
    by Amy Squitieri on 11-20-2009
  • Renderings for the Stillwater Lift Bridge

    Renderings of different aspects of rehabilitation of the Stillwater Historic Lift Bridge. Renderings show crosswalks, markings, bollards, and other future recommendations for rehabilitation to the bridge in its conversion to pedestrian/bicycle use.
    by Amy Squitieri on 11-20-2009
  • Stillwater Historic Lift Bridge Case Study

    The Stillwater Lift Bridge Management Plan for conversion of the historic bridge to pedestrian/bicycle use. Because the Stillwater Lift Bridge is listed in the National Register, a management plan was created that identified actions needed to preserve the structural and historical integrity of the bridge...
    by Amy Squitieri on 11-20-2009
  • HBP/Federal Funding for Parallel Pedestrian Bridge in lieu of Widening Historic Bridge

    (Note this is being posted on behalf of the LA Conservancy) Request : In conjunction with Section 106 consultation for the seismic retrofit of the Riverside Drive Bridge over the LA River, the Los Angeles Conservancy is seeking examples of bridge improvement projects that (1) involve consruction of a...
    by Amy Squitieri on 06-19-2009
  • Re: Top Issue Selected by Historic Bridges CoP Members - The Next Discussion Thread

    My office, the New Hampshire SHPO, has begun to apply Guidelines for Historic Bridge Rehabilitation and Replacement to an actual bridge project over the Connecticut River between NH and Vermont. The bridge is a three-span truss structure (two high trusses, one pony) dating from 1937. We have found the...
    by James L. Garvin on 05-04-2009
  • Re: Level the playing field between rehab and replace

    I agree. The engineering paradigm is taught, partially because engineering schools do not have programs like U of Oregon Historic Preservation Program. Engineers have to learn to maintain, repair, rehabilitate and preserve the hard way. ASCE has an excellent course, due in part to Joe Pullaro, but doesn't...
    by Frank Nelson on 03-30-2009
  • Re: Initial Historic Bridges CoP Discussion Thread

    Track federal and state funding for replacement, repair, rehab, and bridge maintenance. No one seems to be tracking the flow of money into each of these areas. The FHWA has said that they do not distinguish, nor do they require reporting from the states, about the proportion of funding is used for replacement...
    by Patrick Sparks on 03-20-2009
  • Re: Initial Historic Bridges CoP Discussion Thread

    I may have misdirected this reply by giving it a title: "Secretary of the Interior's Standards," so I'll try again. This follows up on the important topic of "purism" in bridge rehabilitation, first raised by Frank Griggs and pursued by several others, including Steve Olson...
    by James L. Garvin on 03-20-2009
  • Secretary of the Interior's Standards

    This follows up on the important topic of "purism" in bridge rehabilitation, first raised by Frank Griggs and pursued by several others, including Steve Olson, Joseph Pullaro, and Ann Miller. Frank mentioned that "the best is often the enemy of the better." When a National Register...
    by James L. Garvin on 03-19-2009
  • Re: Initial Historic Bridges CoP Discussion Thread

    After all the succesful rehabilitations of historic bridges that have been accomplished during the past 30 years or so we still hear from many bridge owners that "the bridge is old, has exceeded its useful life and needs to be replaced". Now with the tragic collapse of the I35 W. bridge in...
    by Joseph J. Pullaro on 03-18-2009
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