A University of Maine graduate research assistant hopes her project will help save the state money. Hannah Breton Loring has been working on a reinforcement system for 50 to 60 year old concrete bridges. Replacing bridges can be extremely expensive. Breton Loring’s system increases the lifespan of bridges by 15 to 20 years. ” This particular type of bridge, flat slab concrete bridges, there’s somewhere in the order of 200 bridges in Maine that are structurally deficient. Of these bridges, a majority of them need to be replaced. Overtime that’s a lot of money and we’re talking about replacement not 20 to 30 years from now, we’re talking about replacement now,” said Hannah Breton Loring. As part of the project, a section of I-95 N will be closed for a few hours early Wednesday morning. Crews will be doing bridge testing from midnight to 3am. I -95 from Union Street to Broadway will be closed. Drivers will need to get off the highway at Exit 184 and get back on at the Broadway on-ramp. Maine Department of Transportation officials say it should add about 10 minutes to drive time.