John Deere 240D excavator.
Lloydminister, Saskatchewan. Fortunately, this track serves industrial areas.
The bridge was stabilized by cranes the following day. The afternoon of October 12th, two heavy cranes were used to lift the span, which was taken to Edmonton where it was declared salvageable. Following repairs, it was placed back in service at its original location! See further reading below.
Comparing and contrasting a bridge knocked off its piers to a bridge under constant assault, for which an unusual solution has been applied to protect it.
One of my Blog readers recently sent me a link to a YouTube video of trucks and recreational vehicles routinely decapitated by a railroad bridge. The Norfolk Southern bridge, is around 100 years old! And like it, there are hundreds of "legacy" rail bridges over highways, streets and roads, built during an era of smaller motor vehicles.
Todays Federal standard for bridges over highways, calls for clearances ranging between 16' (4.9 meters) to 14', depending on the type of road being crossed. And 17' for pedestrian overpasses and signboards. See Federal Highway Administration ruling on bridge clearances.
In Durham North Carolina, a one way street, South Gregson, feeds traffic into a business park, passing under the Norfolk Southern tracks.
The Norfolk Southern railroad bridge spanning South Gregson Street in Durham, North Carolina, is what I call "a legacy" overpass. Vehicles exceeding 11'8" (3.55 meters) will be "decapitated." And it has been struck countless times by drivers who are either inattentive or ignorant of their vehicles height.
Mr. Henn has established a website, featuring memorable moments and very close calls. He's even marketing a tee shirt to monument man vs bridge!
The initial collision can result in collateral rear end collisions as a result of the "immediate" stop, resulting in debris on the highway, resulting in additional traffic tie-up.
So loading up Google Earth program, I proceeded to Durham, North Carolina, to take a closer look at the South Gregson Street Can Opener! This is what I discovered using the "Street Level" tool:
Despite the warning signs, lights and barrier, "the hits just keep on coming…"
See Also: "Bridge Protection with Pizazz ..."
• How the CP bridge span was repaired
• Railroad Merger Trees (located in right margin of this Blog)