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<br />_.....:;,;J_""_"-I- <br /> <br /> <br />pregon <br /> <br />, John A KIL%hal>tr, MD., Governor <br /> <br />Dep~entofTranspo~non <br />Transporhltion Building <br />Salem, OR 97310 <br /> <br />FIlE CODE: <br /> <br />I <br /> <br />De~mber 18, 1998 <br /> <br />~ . <br /> <br />Mai <br /> <br />Stev, 'Gallup 1 Project Manager <br />City cpf Eugene <br />244 IE Broadway <br />EugcJns, OR 97401 <br />1 <br /> <br />_. ---.---- <br /> <br />.--- <br /> <br />P05I-lr Fa}( Note <br />To <br /> <br />767' <br /> <br /> <br />CoJOept. <br />Pho"ft ,. <br /> <br /> <br />FaJt f <br /> <br /> <br />w. 1$lh AVENUE BRIDGE 39C129 <br /> <br />Traffi~ flow restrictions and structural maintenance are recommended for the <br />sUbj~ct bridge as a result of recent inspection reports and load rating data. <br /> <br />, <br /> <br />This ~rjdge, due to its condition, is on an annual inspection frequency. Jeff <br />Swa~strom. ODOT.s Region 2 Bridge Inspector, conducted the latest inspection <br />on September 24, 1998. The past few inspection reports have detailed graduaUy <br />wors,ning decay in the pile caps and exterior stringers. The piles are also <br />suffefing from decay and have ineffectual temporary repairs in place. <br />1 <br /> <br />The ihspector has determined that 1000/0 of the exterior stringers and 50% of the <br />timb~r caps are in Condition State 4 (decay, insect infestation. splits. cracks or <br />crusHing has produced loss of strength that affects the serviceability of the <br />bridg~). The exterior stringers are reported to be completely rotten and timber <br />borin~ reports indicate each of the three timber pile caps have 1-inch shells. <br />Thes~ elements are in dire need of replacement. <br /> <br />The timber piles are in need of permanent, effective repair. <br />! <br /> <br />I <br /> <br />The 9alculations behind the recommended posting detailed in the enclosed <br />posti~g summary sheet were made with the assumption that the suggested <br />repai~s and replacements are in effect. Until such time, the following posting and <br />lane r~strictions are recommended: <br /> <br />· ; Post the structure at 5 tons gross. <br />· 1 Physically restrict traffic a minimum of 1.5 feet from the exterior stringer. <br /> <br />Fbtt'l\ ~-'122 (5/97) <br />