The highway mile markers on this bridge are interesting, at least to the road geek. I-494 and I-694 share a common set of mile markers. These mile markers do not start where these highways meet, as expected. Rather, the zero mile marker is on I-494 at the Minnesota River. The mile markers go up as you head west past the MSP Airport and continue to climb as you travel clockwise around the 494/694 loop. The last exit heading west on I-494 before the zero marker is Exit 71, Pilot Knob Road.
Prior to this section of I-494 opening in the mid-1980's, I-494 was routed up MN-5 past the MSP Airport, then on MN-110 across the Mendota Bridge. The traffic was routed back onto I-494 just west of the present day US-52 interchange.
