Wednesday, 16 July 2014

culvert design and installation

 CULVERT INSTALLATION
Culverts by definition  are drainage structures used  to convey flood waters along  the  road side drains.There are two main type of culvert depending on  location and type of  inlet,namely;access culvert and cross drain culvert.
Access culvert are  located parallel to the road center-line while as the cross culverts are installed perpendicular  to the road center-line.
Cross culvert mostly has a box type of inlet and usually sited at river gauge to convey water from  left-hand to right-hand side of the road of vice-versa.
For a standard road of 5.4 meter cross section a 9M DIA or 6 M DIA culverts are preferred.