Appalachian Trail state line marker on I-80

Sue Spring, recording secretary of the Appalachian Trail Long Distance Hikers Association, and a 7-year-old girl help the Delaware River Joint Toll Bridge Commission unveil a state line marker May 20, 2015, on the Interstate 80 pedestrian walkway between New Jersey and Pennsylvania, where the Appalachian Trail crosses between the states. (Courtesy photo)

New Jersey is on one side of the Delaware River, Pennsylvania on the other.

Now Appalachian Trail hikers will know exactly when they cross between the two.

A marker on the Interstate 80 bridge walkway between the two sides was unveiled this week by the Delaware River Joint Toll Bridge Commission and trail officials.

The green of the toll bridge commission logo represents the hills of Pennsylvania, the gold is the sands of New Jersey and the white is the Delaware River running between the two.

The bridge crosses between Hardwick Township in Warren County and the Pennsylvania borough of Delaware Water Gap -- which was designated an Appalachian Trail community last year -- in the southern end of the Delaware Water Gap National Recreation Area.

The marker mimics the design of the bridge commission's logo, with green representing Pennsylvania's mountains and gold that signifies the sands of New Jersey, the commission said.

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It also tells through-hikers how far they have come or still have to go on the Appalachian Trail. From that point, it is 895.6 miles to Mt. Katahdin in Maine and 1,293.6 miles to Springer Mountain in Georgia.

The I-80 toll bridge is actually the second bridge commission span used by the trail to cross between states, according to a news release. The Portland-Columbia covered bridge served that purpose until it was destroyed in a flood in 1955, the commission said.

Steve Novak may be reached at snovak@lehighvalleylive.com. Follow him on Twitter @type2supernovak. Find Warren County news on Facebook.