Port Huron-Sarnia rail tunnel
                        
                            GPTKB entity
                        
                    
                Statements (19)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | 
                                    
                                        
                                            gptkb:tunnel
                                        
                                         | 
                            
| gptkbp:alsoKnownAs | 
                                    
                                        
                                            gptkb:St._Clair_Tunnel
                                        
                                         | 
                            
| gptkbp:connects | 
                                    
                                        
                                            gptkb:Canada
                                        
                                         gptkb:United_States  | 
                            
| gptkbp:crosses | 
                                    
                                        
                                            gptkb:St._Clair_River
                                        
                                         | 
                            
| gptkbp:gauge | 
                                    
                                        
                                            
                                            standard gauge
                                        
                                        
                                         | 
                            
| gptkbp:heritageDesignation | 
                                    
                                        
                                            gptkb:National_Historic_Landmark
                                        
                                         gptkb:National_Historic_Civil_Engineering_Landmark_(ASCE)  | 
                            
| gptkbp:length | 
                                    
                                        
                                            
                                            2,565 metres
                                        
                                        
                                         | 
                            
| gptkbp:location | 
                                    
                                        
                                            gptkb:Port_Huron,_Michigan
                                        
                                         gptkb:Sarnia,_Ontario  | 
                            
| gptkbp:notableFor | 
                                    
                                        
                                            
                                            first underwater rail tunnel between two countries in North America
                                        
                                        
                                         | 
                            
| gptkbp:opened | 
                                    
                                        
                                            
                                            1891
                                        
                                        
                                         | 
                            
| gptkbp:operator | 
                                    
                                        
                                            gptkb:Canadian_National_Railway
                                        
                                         | 
                            
| gptkbp:replacedBy | 
                                    
                                        
                                            gptkb:Second_St._Clair_Tunnel
                                        
                                         | 
                            
| gptkbp:status | 
                                    
                                        
                                            
                                            closed to regular rail traffic
                                        
                                        
                                         | 
                            
| gptkbp:bfsParent | 
                                    
                                        
                                            gptkb:Grand_Trunk_Western_Railroad
                                        
                                         | 
                            
| gptkbp:bfsLayer | 
                                    
                                        
                                            
                                            6
                                        
                                        
                                         | 
                            
| https://www.w3.org/2000/01/rdf-schema#label | 
                                    
                                        
                                            
                                            Port Huron-Sarnia rail tunnel
                                        
                                        
                                         |