I Learn my Job Every Day


If you had asked me yesterday, “Bill, can you prevent pedestrians from crossing a bridge during construction?” my answer would have been “Sure.” And I would have been wrong wrong wrong:

From the 2009 Manual on Uniform Traffic Control Devices (MUTCD):

04. If the TTC [Temporary Traffic Control] zone affects the movement of pedestrians, adequate pedestrian access and walkways shall be provided. If the TTC zone affects an accessible and detectable pedestrian facility, the accessibility and detectability shall be maintained along the alternate pedestrian route. [emphasis added]

Aha! This has implications because on one of my projects. I am proposing to close a bridge across an interstate for a weekend. During this time, I have to figure out how to get people over, under, around, or through the construction.

One idea is to set up a van shuttle from one side to the other, using the detour route. We shall see.

I had not been aware of that particular mandate in this most recent version of the MUTCD. Just goes to show that even “experts” don’t always know everything.

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