"My team and I worked on the Blue Line Extension Project which involved the design of two new subways stations consisting with platforms, stairs elevators, hallways and much more," team leader Flynn Iesu said in an e-mail interview. "The game plan was to design a one plate-form station for both location at Dartmouth/Newbury intersection and Park Street. All other factors had to fit the constraint of a one platform station."

Iesu and his colleagues revolved their choices around economical and fast approaches for the construction of this extension, with each member being tasked with 15 percent of the design plans. Team members Kevin Coen, Zachary Silvay and Eric Kozikowski helped with the designs, while Jonathan Garcia and Grace Webb worked on the scheduling, cost estimation, and geotechnical aspects. Iesu credits team mentors Jake Corbett, Randall States and David Jacobs for providing wisdom.

"It was a group effort in making the construction process which I then animated in sketchup to showcase the whole construction process for the competition," Iesu said. "After finishing all of the potentially deliverables, my team and I crafted up a elite presentation which we practiced in the weeks approaching the competition. Our mentors Jake, Randy and David gave us tips and wisdom throughout the whole year which helped nudge our team in the right direction."

The Steel Bridge Design Club is a structural engineering club that deals with designing a bridge based on the specifications provided by the AISC for the national competition each year, based on certain specifications, such as meeting a height and length requirement.

"To name a few [specifications], there is a certain height that span needs to clear off the ground, the height and width of each member cannot exceed certain measurements, the length of the bridge that is required, where the posts need to be placed, and a bunch of others," Steel Bridge Design Club President Matthew Jewell said in an e-mail interview. "Then, we basically strategize a bridge that will help alleviate some of the harder rules, like this year there was a connection that needed to be in an area we cannot step in so the design was to make that connection easier. After that comes the basis of the design, so we chose a 3D space-truss since its aesthetic and can handle loading with a bottom chord."

On facing the challenges posed by this competition, Jewell said, "The challenges of this club really came down to putting a lot of man-hours in for fabrication, but our advisors and helper Tom were motivated to help us get this bridge done. Fabrication all started with prepping all the connection plates and taking apart some of the members from last year's bridge. Once all the prep work was finished, then the actual fabrication was simply put together with an assembled jig. The jig is what positioned each piece so that they resembled what they would eventually look like, and then the rest was welding and grinding so that the members were together at the correct dimension. It took a lot of time, but was not necessarily challenging. Testing was just stacking the 50 pound steel bars we have in the shop until it amounted to 2500lb in the worst loading case (mid-span), and doing that test helped the steel harden so it could perform better in the actual competition."

"The competition was definitely long," Jewell said. "The aesthetics judging started at 7AM, so the bridge needed to be assembled then. For us, we were fifth in line for the actual construction speed portion. Overall, we had a solid run with a 13:41 build time and only two drops. Our advisor was very impressed. We then brought the bridge over to the weigh station where it weighed around 250 lbs, and easily passed the deflection. The total deflection was about 1.4" over mid-span and .7" at the end span, amounting to 2.1" aggregate deflection. At the end, we were awarded first place for both construction speed and least deflection."

Competing members of the club included Jewell, John Santangelo, Kelly Voong, and Yuanlong Dai. They all shared the same role of building the bridge.

"This year the club did run a bit differently with Lexi's senior design team helping model the bridge into software, but the E-Board and I helped keep the club running. John, Yuanlong, and I were all E-board members while Kelly was actually part of the senior design team, so we all did different things before we became part of the build team," Jewell said.