where is the 11 foot 8 inch bridge
11 foot 8 Bridge The 11 foot 8 Bridge (formally known as the Norfolk Southern–Gregson Street Overpass and nicknamed The Can-Opener) is a railroad bridge in Durham, North Carolina, United States, that has attracted media coverage and popular attention because tall vehicles such as trucks and RVs frequently collide with the unusually low overpass, resulting in damage ranging from RV roof air conditioners being scraped off to entire truck roofs being removed.[1] The 78-year-old bridge along South Gregson Street provides only 11 feet 8 inches (3.56 m) of vertical clearance.[2] It cannot be raised, because nearby railroad crossings would also have to be raised with it. The street also cannot be lowered, because a major sewer line runs only four feet (1.2 m) under Gregson Street.[3]
Infinity Bridge The bridge is a dual, tied arch bridge or bowstring bridge. It has a pair of continuous, differently-sized structural steel arches with suspended precast concrete decking[2][4][9] and one asymmetrically placed river pier. The tapering arches with a trapezoidal box section are fabricated from weathering steel plate.[10] The arches both bifurcate within the spans to form a double rib over the river pier.[19][20][21] A reflex piece between the two arches holds them together[10] making the two arches one continuous curve. No other bridge is known to have quite the same design.[2][4]