An open house will be held tonight to discuss the next big step in the development of Long Bridge Park: a planned aquatics and fitness center.

County staff, members of the project’s design team and the Long Bridge Park Design Advisory Committee will be on hand to give information and take questions from residents. Feedback is also welcome.

The Aquatics, Health and Fitness facility is expected to be built in two phases. A concept plan posted on the county’s website lists features of the proposed facility like cardiovascular and weight training equipment, an Olympic sized pool, a hot water therapy pool, a play area with slides and a lazy river.

Building the first phase of Long Bridge Park cost $31 million, and the aquatics facility is anticipated to cost around $50 $70 million. If bond funding is approved this year, construction on the aquatics and fitness center could begin as soon as next year and the facility could open by 2015.

The open house is tonight from 7:00-9:00 p.m. at the Fairlington Community Center (3308 S. Stafford Street).