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  1. Guide for In-Place Treatment of Covered and Timber Bridges

    Historic covered bridges and current timber bridges can be vulnerable to damage from biodeterioration or fire. This guide describes procedures for selecting and applying in-place treatments to prevent or arrest these forms of degradation. Vulnerable areas for biodeterioration in covered bridges include members contacting abutments, members near the ends of bridges...

    Author(s):
    Stan Lebow; Grant Kirker; Robert White; Terry Amburgey; H. Michael Barnes; Michael Sanders; Jeff Morrell
    Year:
    2012
    Keywords:
    guide, covered bridge, timber bridge, deterioration, fire, wood preservatives, in-place treatment
    Source:
    Forest Products Laboratory, General Technical Report

  2. Field evaluation of timber preservation treatments for highway applications

    Timber material repair and replacement cost for timber bridges is a considerable expense to highway agencies in Iowa, especially to county road departments. To address these needs, the objectives of this investigation was to study the field effectiveness of various treatment alternatives used on Iowa roadway projects and to determine if the current specifications and...

    Author(s):
    Jake J. Bigelow; Carol A. Clausen; Stan T. Lebow; Lowell Greimann
    Year:
    2007
    Keywords:
    Bridges, specifications, testing, wooded bridges, Iowa, coatings, deterioration, copper naphthenate, service life, wood preservatives, design, construction, timber bridges, preservatives, review article
    Source:
    Ames, Iowa : Center for Transportation Research and Education, Iowa State University, 2007: 1 volume (various pagings)

  3. Preservation treatment for wood bridge application

    Timber can often be a cost-effective construction material for new bridges. The durability of the bridge greatly depends on proper attention to construction details and fabrication, as well as proper preservative treatment before, during, and after construction. Material repair and replacement costs for bridges are a considerable expense for highway agencies. To...

    Author(s):
    Jake Bigelow; Stan Lebow; Carol A. Clausen; Lowell Greimann; Terry J. Wipf
    Year:
    2009
    Keywords:
    Bridges, testing, wooden bridges, specifications, Iowa, coatings, deterioration, copper naphthenate, service life, wood preservatives, design, construction, maintenance, repair, inspection, wood preservation, timber bridges, copper naphthenate, review article, durability, performance testing, preservation
    Source:
    Transportation Research Record: Journal of the Transportation Research Board. No. 2108 (2009): p. 77-85.

  4. Evaluation of a timber column bent substructure after more than 60 years in-service

    This paper describes both the field evaluation and laboratory testing of two timber-column-bent bridge substructures. These substructures served as intermediate pier supports for the East Deer Park Drive Bridge located in Gaithersburg, Maryland. A field evaluation of the bridge substructure was conducted in September 2008. Nondestructive testing was performed with a...

    Author(s):
    James P. Wacker; Xiping Wang; Douglas R. Rammer; William J. Nelson
    Year:
    2011
    Keywords:
    Bridges, inspection, wood deterioration, service life, design, construction, loads, moisture, maintenance, repair, weathering, nondestructive testing, micro-drilling, laminated wood, composite materials, East Deer Park Drive Bridge, laminated bridges, glulam timbers, stress-laminated bridges, timber bridges, performance testing, wooden bridges, durability, structural timbers, wood decay, moisture content
    Source:
    Proceedings of the CIMAD11 - 1º Congresso Ibero-LatinoAmericano da Madeira na Construção [Spanish & Latin American Conference on Timber Construction], Coimbra, Portugal, June 7-9, 2011 [electronic resource]. [S.l. : s.n.], 2011: [1 flash drive]: 7 p.
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