Complex sentence: It currenly runs mostly north of the city and connects PR-52 to PR-10 in an east-to-west fashion; when completed it will run as a beltway around most of the eastern and northern sections of the city.
Split into simpler sentences: It currenly runs mostly north of the city and connects PR-52 to PR-10 in an east-to-west fashion. When completed it will run as a beltway around most of the eastern and northern sections of the city.