page_title: Allegheny County belt system
section_title: Green Belt
hierarchical_section_title: Allegheny County belt system / Descriptions of the Belts / Green Belt
caption_attribution_description: Pennsylvania State Route 837
context_page_description: The Allegheny County Belt System color codes miscellaneous county roads to form a unique system of routes in Allegheny County, Pennsylvania, and around the city of Pittsburgh.
  Unlike many major American cities that utilize number-coded limited-access roads to form belt systems, the belts in the Allegheny County Belt System are not intended to be used as high-speed routes. Rather, the belt system is to be used as a navigational aid for motorists in unfamiliar portions of the county. Roads that make up the Belt System retain their previous names. The five original routes are, from outermost to innermost, the Red, Orange, Yellow, Green, and Blue Belts. The Purple Belt was not part of the original system and was added later.
context_section_description: The Green Belt forms a half-circle around the city, with a length of 38.6 miles (62.1 km), through suburban communities in the northern and eastern sectors of the county. (The gap is due to geographic concerns rather than intersecting with other counties, as is the case with the Red and Orange Belts.)
  The current Green Belt begins eastbound on Camp Horne Road at PA 65 in Emsworth and originally terminated before the Rankin Bridge in Rankin.  This was later extended to its current southeastern terminus at PA 148 and the Yellow Belt in McKeesport, giving the Green Belt the distinctions of being the only one in the system to cross the same river (Monongahela) twice and terminate at another belt route.  In its path around the city, the belt crosses or joins PA 8 (at its northernmost point in Hampton Township), PA 28, PA 65, PA 130, PA 148, and PA 837. It also briefly joins US 19 in Ross Township.
  There are three Green Belt crossings over two of Allegheny County's four rivers. From the northeast, the belt traverses the Allegheny River via the Highland Park Bridge between O'Hara Township and the Pittsburgh neighborhood of Highland Park.  Traveling southeast, the Green Belt runs across the Monongahela River via Rankin Bridge between Rankin and Whitaker, down PA 837 South for 5 miles and across the Monongahela again via McKeesport-Duquesne Bridge (between said towns) where it terminates.
  The Green Belt runs through many Pittsburgh neighborhoods. Its most notable landmark destinations include Kennywood Park in West Mifflin and the Pittsburgh Zoo in Pittsburgh's Highland Park neighborhood.
caption: Green Belt on PA 837
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