Patent ID: 6474907
Filing Date: 2002-11-05
Classification: E01F,F16B

Abstract:
An archway culvert construction comprising a plurality of modules, each module comprising:(a) a one-piece hollow semi-cylindrical body which has first and second ends, first and second bases and a radial arc of 180Â° ; (b) a first vertical flange on the first end of the semi-cylindrical body having bolt holes therein and extending the 180Â° periphery of the first end of the semi-cylindrical body; (c) a second vertical flange on the second end of the semi-cylindrical body having bolt holes therein and extending the 180Â° periphery of the second end of the semi-cylindrical body; (d) an integral semi-circular upstanding reinforcing rib on an exterior region of the semi-cylindrical body between the first flange and the second flange, said rib extending the 180Â° periphery of the semi-cylindrical body and being formed in one piece as part of the semi-cylindrical body; (e) a first footing contact area at the base of a first side of the semi-cylindrical body and extending the length of the body and contacting the bases of the body, the first flange, the second flange and the reinforcing rib; (f) a second footing contact area at the base of a second side of the semi-cylindrical body and extending the length of the body and contacting the bases of the body, the first flange, the second flange and the reinforcing rib on a side of the semi-cylindrical body opposite the first side; and said archway including a semi-circular hollow protective cap for fitting over the entirety of adjacent unbolted flanges of adjacent modules placed adjacent to one another, the semi-circular protective cap extending 180Â° on the exterior of the semi-cylindrical body from the first footing contact area to the second footing contact area, and thereby enabling the adjacent modules to move independent of one another.