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[quote user="Convicted One"] [quote user="henry6"]INTERSTATE highways cannot be so designated unless strict clearances and guidelines are in place.  This includes separate direction lanes, minimum overpass heights, no intersecting roads, no traffic signals, and no railroad crossings[/quote] That really isn't 100% true.  If you drive north on I-15 from Cedar City Utah, several service roads coming out of private ranches intersect at grade. there are even warning signs to alert motorists to the potential hazard. <div style="clear:both;"></div> [/quote] Here in Texas, Interstate 35 at one time had one of the few at-grade railroad crossings in the Interstate Highway System. The crossing was removed during the 1970s.<a href="http://en.wikipedia.org/wiki/Interstate_35_in_Texas#cite_note-I35Austin-4"></a>
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