Maybe maybe not Projects do not get to set notability guidelines independent of overall notability If however a project comes up with a reasonable yardstick in their specialty area it ought to be adopted unless there is some overwhelming reason not to That said we have for a long time said in NRHP  Notability Regardless of mention elsewhere hits what have you its notable QED This bridge if it IS this bridge and not an error if so which bridge is it has been judged eligible but isnt actually IN NRHP yet Just because no one actually did the spadework presumably So if something SHOULD be in NRHP but isnt is it notable by default Interesting question One that needs debating somewhere larger scoped than this discussion personally Id tend to say yes but on reflection I admit its possibly debateable This bridge also if the source is believed is the th oldest steel bridge in MA  does that make it notable QED What if it was the oldest in the world Certainly regardless of mention elsewhere What if it was the oldest in the US Also certainly What if it was the oldest in MA Almost certainly Where does this line get crossed and inherent end though Dunno  For a state the size of MA Id say somewhere lower than  at least the oldest  qualify Id say