Washington, D.C., has a problem which occurs on hot days.
PEPCO manhole covers are
exploding/
flying out of place apparantly as the result of heat. The latest occurance was worsened by a fire below 30th and M Street.
Parts of Georgetown lost power for several days due to this fire.
Apparently the problem is somehow being caused by the current common trench project to have a single street cut used by all of the utilities, fiber providers and other folks who like to cut up streets.