Hello everyone.  I read the list on the FHWA web site I saw the list of states that use metric in highway construction.  I agree it is bleak.  When did Oregon abandon metric in their highway construction.  I read the memo on the FHWA web site dated Oct. 1998 stating they would no longer make states use metric in their highway construction.  Why did the FHWA change the policy? The states that use dual in highway construction, do they have to submit plans in both metric and imperial or can they use either or?  States that use dual are overpass heights and bridge heights given in both systems?  Wouldn't it have cost Oregon or any other state that abandoned metric a lot of money to convert everything back?    metric            

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