Frederick County has a lot of limestone underground and at times sink holes occur. Saturday one occurred in front of our neighbor's house and both the water and sewer lines broke. It is not clear if a break in one of the pipes caused the sink hole or the collapse of the street broke the pipes. The water and sewer guys were on the job quickly and service was restored in about 6 hours. The road will take a few days.
Above sewer break and electric cables to houses across the street.
Below the repaired water main.
To keep sewer service to the houses beyond the break, they set up pumps and overland pipes to move the flow to the next manhole. A geologist inspected the hole and the sewer folks are going to look inside the pipes with a video camera to be sure there are no other cracks before making repairs.