A small group of homeowners that includes residents of Timbergrove, Brookwoods Estates, and Holly Park have filed a lawsuit against the Federal Highway Administration claiming that the agency approved the expansion of Hwy. 290 along the 38-mile stretch from 610 to FM 2920 last August without properly analyzing how noise from the project would affect their properties. In the filing, the plaintiffs say they are not opposed to the project, but are concerned that TxDOT’s environmental studies of its planned elevated roadways at the 610 and I-10 interchanges — some of which will reach as high as 100 ft. in the air — didn’t account for noise impacts on Memorial Park and the Houston Arboretum as well.