Replacing broken concrete slabs and cleaning roadside sound barriers may not sound glamorous but they’re the kinds of projects that have been a key result of the Transportation Funding Act, which marked its first anniversary Friday. Because of the new law, “we can now leverage our federal dollars differently and a little more strategically,” said DOT Commissioner Russell McMurry, who reflected on the tax’s anniversary during an interview last week. Motorists may want immediate traffic relief through added lanes, and the state has been able to prioritize bigger projects, such as widenings and new construction of roads and bridges.