No by rules, no be logic of game.
Rules for Halflings with clarrification by HiG said that halfling represend full place of square when counted scoring or occupied place on board.
Rules for Bridge said that bridge can be placed over tile for field/field edges, but not over Acrobat place for Pyramide (Big Top Large Expansion).
So. You requested placement not follow rules field/field on edges, because, end of bridge will be placed on board (table), not on other halfling.
When situation will be other, that halfling on currently not occupied place will be placed, and you place this tile, and it will be possible to place bridge over two halflings, then it will be possible due to rule of "one place = square".