The Lower Delaware was designated in 2000 as a Wild and Scenic River
- from river mile 193.8 to the northern border of the City of Easton;
- from south of the Gilbert Generating Stations to north of the point Pleasant Pumping Station;
- from South of the Point Pleasant Pumping Station to 1,000 feet north of the Route 202 Bridge;
- from 1,750 feet south of the Route 202 bridge to Washington Crossing.
Additionally some of the tributaries in the Lower Delaware were also designated including Tinicum Creek, (headwaters of two upper branches to the Delaware River confluence), Tohickon Creek, (downstream of Lake Nockamixon to the Delaware River confluence), and Paunacussing Creek, (portions passing through Solebury Township to the Delaware River). The Musconetcong River, (3.5 mile stretch from Saxton Falls to Route 46 and the 20.7 mile stretch from King’s Highway Bridget to railroad tunnels at Musconetcong Gorge), was designated in 2006.