LYNDON — Plans for a Sanborn Covered Bridge Riverfront Park are taking shape. The Select Board on Monday reviewed conceptual drawings for a two-acre park located adjacent to the historic covered bridge on Main Street. The project, in development for the past year, would create a 2-acre riverside oasis within walking distance of the downtown. SLR Consulting produced the two conceptual drawings, which imagine what a park might look like. The drawings include similar elements such as pedestrian paths and seating, open lawns and shade trees, a sculpture, pavilions with educational signage, and kayak/canoe access to the Passumpsic River. A key difference is the parking lot configuration.