PORTSMOUTH NH (AP) – A pair of civil engineers took their relationship to new heights atop a New Hampshire bridge. Dan Del Tufo arranged to have the Memorial Bridge in Portsmouth lifted to its maximum height, and that’s where he surprised Julia Kallmerten with a marriage proposal. She said yes. The Boston Globe reported Tuesday that the couple met at the University of New Hampshire, and both have worked on projects around the bridge. Del Tufo says he had to make the proposal on Saturday as special as she is.