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Log bridge
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<h2 id="various-log-bridge-designs">Various log bridge designs</h2> <h2 id="external-links">External links</h2> <p> Media related to Log bridges at Wikimedia Commons </p> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>National Parks Conference, Department of the Interior (1915). Proceedings of the National parks conference held at Berkeley, California March 11, 12, and 13, 1915. Washington: Government Printing Office. p. 60. Retrieved March 14, 2010. (A log bridge) is a bridge composed of log beams, the logs being in natural condition or hewn, which are thrown across two abutments, and over which traffic may pass. <a href="https://archive.org/details/proceedingsnati01confgoog" target="_blank">https://archive.org/details/proceedingsnati01confgoog</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Bennett, David (2000). "The history and development of bridges". In Ryall, M. J.; Parke, G.A.R.; Harding, J.E. (eds.). The manual of bridge engineering (Google books). London: Thomas Telford. p. 1. ISBN 978-0-7277-2774-9. Retrieved March 14, 2010. <a href="978-0-7277-2774-9" target="_blank">978-0-7277-2774-9</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>National Parks Conference 1915, p. 59. "The chief objection to a log bridge ... is the shortness of its life." - National Parks Conference, Department of the Interior (1915). Proceedings of the National parks conference held at Berkeley, California March 11, 12, and 13, 1915. Washington: Government Printing Office. p. 60. Retrieved March 14, 2010. (A log bridge) is a bridge composed of log beams, the logs being in natural condition or hewn, which are thrown across two abutments, and over which traffic may pass. <a href="https://archive.org/details/proceedingsnati01confgoog" target="_blank">https://archive.org/details/proceedingsnati01confgoog</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>National Parks Conference 1915, p. 59. "If we can design the abutment so that no moisture can collect under the logs the life of the bridge is materially increased." - National Parks Conference, Department of the Interior (1915). Proceedings of the National parks conference held at Berkeley, California March 11, 12, and 13, 1915. Washington: Government Printing Office. p. 60. Retrieved March 14, 2010. (A log bridge) is a bridge composed of log beams, the logs being in natural condition or hewn, which are thrown across two abutments, and over which traffic may pass. <a href="https://archive.org/details/proceedingsnati01confgoog" target="_blank">https://archive.org/details/proceedingsnati01confgoog</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>