Workers in heavy machinery swept away debris as the water receded late Thursday.
THE GAPING HOLE left behind: Raw video from SkyEye13
Crews work to repair massive water main break
Meanwhile, the city of Houston, except for Kingwood, is still under a boil water notice, at least through the rest of the day Friday. Mayor Sylvester Turner insisted the water is safe, but as a precaution, issued the advisory.
MAP: City of Houston's boil water notice
For those who need to run to the store to buy water, local grocery stores say they're working to remain stocked.
Statement from H-E-B
H-E-B continues to address the increased demand for water in the city of Houston. As of last night, we have received 40 trailers of water and expect more today. We will continue to work to supply our stores in the city limits until the boil ban is lifted.
Turner reported Friday morning that water pressure had stabilized and the city was working with the Texas Commission on Environmental Quality to approve a water sampling plan. The sampling plan allows officials to determine when the boil order is no longer needed.
Schools and businesses across the city were closed Friday, including all Houston ISD campuses.
SEE ALSO: What's closed on Friday amid Houston water emergency?
According to officials, a city contractor was doing exploratory work for a water line project. When soil was moved from the line, the 96-inch water line burst.
WATCH: Demonstrating the size of water line that burst near East Loop
Houston water main break: How big are we talking about?
[Ads /]
City officials said the line provides water to 40 to 50 percent of Houston residents.
"This was a major break," said Mayor Sylvester Turner during a press conference on Thursday. "As you can see, it produced a lot of water, and it is still producing a lot of water. I can tell you that the line has been isolated on both ends, but until it fully drains, it will continue to spill out water."
Later Thursday evening, Mayor Turner gave this statement:
"In light of today's wide-spread water outage, I have authorized Houston Public Works to take all necessary steps to isolate the water line break, drain the lines, and make the necessary repairs to return water pressure to normal levels as soon as possible. Repairs will take six to eight hours so we are asking the public to conserve water to help relive water pressure. We are currently under a boil water notice and you will be notified when it is rescinded. A City of Houston contractor was doing exploratory work for a City of Houston water line project in east Houston near 610 and Clinton Drive. When soil was moved from the line, the 96-inch line burst.
Food service establishments without water or flushing toilets must cease operation. The Houston Health Department has dispatched sanitarians to the area. I want to thank our first responders for acting quickly and getting drivers to safety. Thankfully, no water entered any homes in the affected area. Today's water line break is a reminder of the aging infrastructure that Houston and other major cities face as we work to make improvements each day."
Some drivers were forced to climb onto the roof of their vehicles as the water levels climbed on Thursday.
Rescue boats from the Houston Fire Department and high water rescue vehicles from the Houston Police Department were dispatched to pull drivers to safety.
HFD said it rescued three people. Firefighters searched and cleared a total of 12 vehicles.
Despite the large area that flooded, there were no reports of any injuries, according to HFD.
MORE TO KNOW AFTER THE WATER MAIN BREAK:
WATCH: SkyEye13 captures the cleanup on East Loop entering nighttime
City cleaning up 610 after flood
The water main break has caused a water outage for the area and has forced a number of businesses, including health clinics and voting centers, to close.
[Ads /]
"If you're a food establishment and if you don't have water, they must immediately cease operations," said Turner.
Texas Gov. Greg Abbott addressed the water main break and offered the following statement:
"The State Operations Center has been in close contact with Houston and Harris County officials, and the Texas Division of Emergency Management has staff assisting on the ground through the Houston Emergency Operations Center. The State will continue to provide any additional assistance as needed."
In some of the most shocking images from SkyEye13, two men were seen on the top of a truck in the middle of the water.
WATCH: High water vehicles rescue people from flooded freeway
[Ads /]
People rescued in sudden flood that covers 610 East Loop
WATCH: SkyEye13 over massive water main break near the 610 East Loop
Houston water main break forces rescues on freeway
The rushing water also damaged the center divider between the northbound and southbound lanes of the East Loop.
In addition to water, a massive amount of mud and vegetation was pushed onto the road, covering some of the stranded vehicles with debris.
The mess spilled into the Clinton Park Tri-Community neighborhood, which includes at least 7,600 homes. Turner said in a tweet that it appeared the water did not enter any homes.
Before pressure stabilized overnight, Fire officials were concerned about increased fire risk in the city due to low water pressure. HFD Chief Samuel Pena said the department pre-deployed six tankers in case of any fires.