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i <br /> ' ~ ~ ~ ~1 u.s. DEPARTMENT OF TRANSPORTATION <br /> .~°i, FEDERAL HIGHWAY ADMINISTRATION <br /> I '~~~~r~ ~1 <br /> ~ THE OREGON DtVISiON <br /> The Equftable Center, Suite 100 <br /> <br /> ; 530 Center Street NE <br /> ~r^tes of <br /> Salem, Oregon 97301 <br /> 503-399-5749 <br /> FAX: 503~99~838 <br /> September 11, 2000 <br /> Ni REPLV REFER TO <br /> HE0.1-OR <br /> DPB-0002(3) ( } <br /> v~~~ ~ ~ ~ 1 I yif ~ j'tl <br /> Mr. Thomas Lulay ` ~,R;-v~il,%_{;G?'z ~~'~`.~-e~~~~="~ <br /> De ut Director ~ <br /> Oregon Department of Transportation <br /> 355 Capitol Street N.E., Room 135 ,~~r-c~t~:. <br /> ~Z ~ ` <br /> Salem, Oregon 97301-3871 ~,.y`,~ <br /> RE: Ferry Street Bridge Project ~ -~°J ~ _~Y <br /> Federal-aid Participation in the Microsilica Overlay ;v~ ,/r~ <br /> Dear Mr. Lulay: <br /> Enclosed is Form FHWA-1367 withdrawing Federal-aid participation in the bid items for <br /> Construct Overlay, Class 2 Preparation, and Furnish Microsilica Concrete. The reasons for <br /> this action were discussed in a meeting in our office August 30, 2000. Those in attendance at <br /> the meeting included: Dean Fuller and Scott Nelson, Oregon Department of Transportation; <br /> Gayle Harley, Guy Hakanson, and Stewart McCornack, Oregon Bridge Engineering <br /> Company; Tom Larson, City of Eugene; and Anthony Boesen and Bruce Johnson, Federal <br /> Highway Administration. <br /> As we discussed in the meeting, there were alternative actions that could be taken to give the <br /> overlay a similar life to that of a normal structural overlay. However, as we understand from <br /> the meeting, the City of Eugene has determined not to pursue any further repairs involving <br /> significant traffic disruptions at this time. <br /> As a result, FHWA has taken this action because we do not consider the deck overlay to meet <br /> the specifications, and the final product is not as durable as a defect-free deck. The presence <br /> of unshredded paper bag material is considered to be an unacceptable defect. The bag material <br /> has caused premature popouts and spalling, and will likely cause more in the future. The <br /> repairs done by chipping out spalled concrete and drilling out popouts are not considered <br /> acceptable because a fast setting patch material with no microsilica and potentially unsimilar <br /> characteristics was used, increasing the likelihood of additional premature cracking and <br /> spalling. There are an unacceptable number of patches for the deck to be considered durable. <br /> <br />