It totals some 30 miles ( 48 km ) in length .
The North Kent Line connects with the LCDR Chatham Main Line at Rochester Bridge Junction , about 200 m beyond Strood station .
North Kent Line totals some 30 miles ( 48 km ) in length .
The North Kent Line connects with the LCDR Chatham Main Line at Rochester Bridge Junction , about 200 m beyond Strood station .