More Than 2,600 Bridges in US Lack Protection From Collisions by Ships
				
																	
								
				WASHINGTON (Sputnik) - Two thirds of the 4,000 bridges in the United States that allow ships to pass under them lack functional pier protection against being hit and potentially demolished by collisions, US Senator Tom Carper said in a hearing on Wednesday.				
			
			
			
			
						
						
						
					
		