CIRIA publish new Culvert, screen and outfall manual The design, operation and maintenance of a culvert i ...
	                                                
	                                             
	                                            	                                            
	                                            
		                                            
		                                                
		                                                    CIRIA publish new Culvert, screen and outfall manual The design, operation and maintenance of a culvert is critical to effective flood risk management, channelling waste water, accommodating wildlife ...
		                                                
		                                             
		                                            		                                            
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