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STATE HISTORIC BRIDGE INVENTORY AND EVALUATION 2024 UPDATE <br /> J j [ - ° i . . . - . . <br /> ALJL <br /> \\\ <br /> • <br /> 11 7 <br /> FIGURE 11.STEEL TRESTLE BRIDGE(DRAWING PROVIDED BY MKE ASSOCIATES LLC,2013). <br /> Steel Trestle Railroad Bridges <br /> Fourteen steel trestle railroad bridges were constructed in 1911 for the Hilo Railroad Company. Five of <br /> these (Hakalau, Nanue, Kapue, Paheehee, and Umauma) were reconstructed as territorial highway <br /> bridges between 1951 and 1953, the remaining nine were salvaged for use in the reconstruction. The <br /> reconstructed steel trestle structures are topped with a concrete and asphalt highway deck. During their <br /> conversion, the bridges were widened for highway use by the addition of members from other railroad <br /> bridges. The simple horizontal concrete railings were added during the 1951-53 renovations. <br /> Significance <br /> The period of significance for metal truss and stringer bridges begins in 1912, when the earliest <br /> remaining example was erected, and ends in 1957. The period of significance for steel trestle railroad <br /> bridges begins in 1911, when they were first constructed, and ends in 1953, after their conversion to <br /> highway bridges. Metal bridges are eligible under Criterion A if they contributed in a meaningful way to <br /> the settlement and development of a geographically definable area, facilitated major passage to or <br /> through a region, or been significantly integral to the development of an effective transportation <br /> system. Metal truss bridges in Hawaii are significant as representative examples of the expanding capital <br /> investment and control that American manufacturers had gained over their British and German rivals as <br /> a consequence of the U.S. annexation of the islands in 1898. The steel stringer bridges are significant for <br /> their association with the railroads of the sugar industry. They were built with U.S. Works Program <br /> Grade Crossing funding which provided federal money, without the usual match requirement, to build <br /> bridges separating railroad and road grades. The erection of metal truss and stringer bridges was a <br /> deliberate effort by the territorial government to construct permanent public works improvements <br /> requesting the latest technology. <br /> The remaining metal truss and stringer bridges are eligible under Criterion C as rare survivors of a once <br /> common bridge type and as representative examples of the work of important engineers and builders. <br /> These include Joseph H. Moragne of the Kauai Department of Public Works, who oversaw the <br /> construction of the Hanalei River Pratt Truss in 1912 (replaced in 2003).James L. Young was responsible <br /> for building the Karsten Thot Warren truss over the North Fork of the Kaukonahua Stream in Wahiawa, <br /> Oahu in 1932. Young, the founder of J. L. Young Engineering Company, was "in the literal sense of the <br /> phrase, a builder of Hawaii."'Young was trained as a civil engineer and an architect. He designed and <br /> constructed the first two reinforced-concrete fireproof buildings in Honolulu, the Pantheon Block and <br /> the laboratory building at the Bishop Museum. Between 1922 and 1925, Young built over forty-one <br /> buildings in Honolulu, including Palama Settlement, the Library of Hawaii (Hawaii State Library), and the <br /> 'George F. Nellist, "The Story of Hawaii and Its Builders," Honolulu Star-Bulletin, 1925, 911-912. <br /> cIII ! <br /> 23 <br />