Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Real Wildlife Overpass

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Okay, I feel bad about exposing the hoax.  Here is a link with a photo of a real wildlife overpass.
 
http://www.pc.gc.ca/eng/pn-np/ab/banff/docs/routes/chap1/sec1.aspx
 
This Banff wildlife crossing was constructed over the Trans Canada Highway in the 1990s by Parks Canada.   
 
"The two 50-m wide wildlife overpasses were the first of this magnitude to be built in North America. Three considerations were taken into account for overpass placement; preferred wildlife crossing points, favorable terrain configuration for engineering and construction considerations, and driver safety requirements. Earth berms were built on the overpasses to reduce disturbance (noise, lights) from highway traffic."
 
So, the Canadians really do build bridges for critters, just not the ones that look like railroad bridges.  It is interesting that, of the three design considerations, driver safety came last.
 
Now I feel better,
 
Stan