So, the dumbasses at my local Department of Transportation decided that it would be a GREAT idea to close one of two lanes of a major freeway at the beginning of rush hour so some guy could walk around taking pictures. Traffic was stopped for 4 miles and getting deeper. This is the second time this week!
Post-build they want to clean up the as-built docs and ensure they’re accurate.
That’s only one of probably many reasons they would close the lane.