MEEHAN SHOWS US HOW THEY DO IT AT NORTHEASTERN. REPORTER: I KNOW YOU’VE HEARD IT A MILLION TIMES FROMLD O GMPRUY OLD MEN LIKE ME. BACK IN MY DAY IN COLLEGWEE WALKED TO SCHOOL, UP HILL, IN BOTH DIRECTIONS IN THE COLD AND SN.OW BUT HERE AT NORTHEASTER THERISE SOMETHING YOU DON’T NEED. YOU DON’T NEED THESE, YOU DON’T NEED THIS, AND INCREDIBLY YOU DON’T EN NEED THIS WHEN IT’S SUB-ZERO TEMPERATURES OUTSIDE. LET ME SHOW YOU WHY. WELCOME TO THE NORTHEASTER TUNNEL SYSTEM. AND LET ME TELL YOU SOMETHING,, IT’S A LOT MORE TOASTY DOWN HERE. >> WE’RE RIGHT HERE. REPORTER: MARK BOULTER IS SENIOR DIRECTOR OF BUILDING SERVICEATS NU. >> IT ALL GOT STARTED RIGHT REHE INN RICHARDS HALL. THIS WAS THE 1ST BUILDING THAT WE BUILT ON OUR MAIN CAMPUS. REPORTER: SINCE 1938 AS THE CAMPUS GREW, SO DID THE 16,705-SQUARE-FOOT UNDERGROUND TUNNELS. THE NETWORK SNAKING ACROSS 3 MILES, ALL LEADING TO 11 DIFFERENT UNIVERSITY BUILDING. ALL THE WHILE STUDENTS AND UNIVERSITY OPERATIONS NEVER NEEDING TO HEAD OUTSIDE. >> WE TRY TO LIMIT THE ABOUTF O VEHICULAR TRAFFIC TO MAKE IT SAFE FOR OUR COMMUNITY UP ABOVE. AND WE TRYO TSERVICE ALOFL THESE CORE BUILDINGS FROM THE TUNNEL SYSTEMS. REPORTER: FROM LECTURE HALLS TO LOCKERS. AND BOOK STORES TO A PLACE TO GRAB A BITE, FOR THESE HUSKIES STAYING WARM, DRY AND COMFORTABLE IT’S A NICE WAY TO ESCAPE THE BRUTAL BLAST OF A SO-CALLED SPRING SEMESTER. >> WHAT’S IT LIKE HAVING THIS TUNNEL SYSTEM TO GET AROUND? >> OH IT’S BEEN GREAT. ESPECIALLY SINCE ALL MY CLASSES ARE JUST AROUND HERE. I DON’T WANT TO BE WALKING OUID E.ID >> I USE THE TUNNELS A LOT TO GET FROM CLASS TO CLASS ESPECIALLY WHEN ITS COLD. >> IT’S GREAT. I WAS JUST ABOUT TO GO DOWN THE TUNNELS TO GET TO MY CLASS. REPORTER: THE FINAL SECTION OF THE TUNNEL WAS COMPLETED IN 8819 WHEN THEY CONNECTED IT TO SNELL LIBRARY. PART OF THE PROBLEM IS YOU’VE GOT THE GREEN LINE UP HERE, YOU’VE GOT THE ORANGE LINE DOWN HERE AND A CULVERT THAT RUNS UNDERNEATH FORTHYS STREET. FOR NOW THIS IS ABOUT IT WHEN IT COMES TO THE TUNNEL SYEMSTUT I B CAN TELL YOU IT’S PRETTY NICE TO HAVE ESPECIALLY THIS TIME OF AR.YE AT NORTHEASTERN UNIVERSITY, I’M DOUG