I found one of these on Drummond Island, Michigan.
There is a gravel road extending between two quarries on the western end of the island that is completely grade-separated. Two local roads have bridges over the gravel road, and one local road goes through a neat-looking round tunnel under the road.
The road is pretty prominent in the satellite imagery:
https://maps.google.com/maps?ll=45.967856,-83.824482&spn=0.108457,0.142822&t=k&z=13
Quote from: HandsomeRob on June 27, 2014, 10:37:33 AM
I found one of these on Drummond Island, Michigan.
There is a gravel road extending between two quarries on the western end of the island that is completely grade-separated. Two local roads have bridges over the gravel road, and one local road goes through a neat-looking round tunnel under the road.
The road is pretty prominent in the satellite imagery:
https://maps.google.com/maps?ll=45.967856,-83.824482&spn=0.108457,0.142822&t=k&z=13
Cool! Street View: https://maps.google.com/maps?ll=45.974216,-83.811103&spn=0.000535,0.001321&t=k&z=20&layer=c&cbll=45.974126,-83.81113&panoid=pQEdY4llRePDhH1VEP1smg&cbp=12,3.63,,0,0
That definitely beats these:
IL-53 at a quarry in Romeoville (https://maps.google.com/maps?hl=en&ll=41.618364,-88.077854&spn=0.003233,0.005284&t=h&z=18).
Thornton Quarry at the Tri-State Tollway (https://maps.google.com/maps?hl=en&ll=41.579453,-87.618928&spn=0.001617,0.002642&t=h&z=19). And yes, that is a dam being built in the image.