Houston swamped with 100,000 gallons of raw sewage, thousands of homes destroyed, and 21 dead (Images Included)

Houston swamped with 100,000 gallons of raw sewage, thousands of homes destroyed, and 21 dead (Images Included)

Houston swamped with 100,000 gallons of raw sewage, thousands of homes destroyed, and 21 dead: Officials warn that dam is on the brink of failure and say Texas could be hit by MORE flooding

The death toll continues to rise in flood-ravaged Texas and Oklahoma and as receding floodwaters revealed mounting destruction, rains continue to threaten even more flooding on Wednesday.

Several more inches of rain were expected through the weekend in already soaked Texas and Oklahoma.

The death count was expected to rise as floodwaters slowly recede — though the rains weren’t expected to fully abate any time soon

Over 11 inches of had fallen in parts of Houston, America’s fourth largest city, where flooded highways have forced hundreds to abandon their cars

A Houston wastewater treatment plant overflowed Tuesday thanks to a flooded bayou, spilling 100,000 gallons of untreated sewage into surrounding waters

People were told to stay away from more than 200 homes in Parker County where the Brazos River was poised to spill its banks about 30 miles west of Fort Worth on Wednesday night

Meanwhile, a Dallas-area dam on Wednesday threatened to overflow and flood a major highway with FEET of water as officials told around 25 households in the area to evacuate

In hard-hit Houston, some of that destruction came Tuesday in the form of a waste water treatment plant so inundated with waters from an overflowing nearby bayou that more than 100,000 gallons of raw sewage spilled out into surrounding floodwaters.

Flash flood warnings were expected through the weekend in Texas, as a storm system that has settled along several southern states brings several more inches of rain.

Hundreds of people were ordered to evacuate flood-threatened areas of Texas on Wednesday as storms bringing torrential rains battered the state, where at least 21 people have been killed in weather-related incidents this week, including six in Houston.

People were told to stay away from more than 200 homes in Parker County where the Brazos River was poised to spill its banks about 30 miles west of Fort Worth on Wednesday night. (Foreign Media)

Sewage: More than 100,000 gallons of untreated wastewater has spilled after Houston's Southwest Wastewater Treatment Plant flooded Tuesday when a bayou overflowed its banks

Sewage: More than 100,000 gallons of untreated wastewater has spilled after Houston’s Southwest Wastewater Treatment Plant flooded Tuesday when a bayou overflowed its banks

Overflowing dam: The Padera Dam near Dallas was dangerously close to overflowing, and sending a cascade of floodwaters into a nearby busy highway, as workers scrambled to pump off the excess

More bad news: Flash floods stranded motorists along the city's freeways after historic levels of rain hit the state

Flash floods stranded motorists along the city’s freeways after historic levels of rain hit the state

Submerged: Some lost their cars completely to the water as they became barely even visible 

Submerged: Some lost their cars completely to the water as they became barely even visible

Cleanup begins: Sandy Reyesa adds wet books to a dumpster full of soggy carpets and belongings Wednesday in Houston, where residents were just starting to clean up after flash floods soaked much of the nation's fourth largest city

Cleanup begins: Sandy Reyesa adds wet books to a dumpster full of soggy carpets and belongings Wednesday in Houston, where residents were just starting to clean up after flash floods soaked much of the nation’s fourth largest city

More to come: Meteorologists say storms that have been virtually parked over Texas for weeks are not yet done, raising the prospect of even more flooding

More to come: Meteorologists say storms that have been virtually parked over Texas for weeks are not yet done, raising the prospect of even more flooding

Giant mess: Lorraine Joseph talks about her car still stuck the mud despite several attempts to pull it out Wednesday in Houston. Each attempt failed when the rescuers also got stuck in the mud

Search: Volunteers search for missing bodies along the Blanco River May 26, 2015 in San Marcos, Texas. The area was one of the hardest hit from recent storms and over a dozen remained unaccounted for Wednesday

A storm-ravaged highway along the Blanco River is strewn with debris. Rains were expected to continue through the weekend

Still more flash flood warnings were expected through the weekend in Texas, as a storm system that has settled along several southern states brings several more inches of rain

Floods damaged about 1,400 structures and snarled transport in Houston, the fourth most-populous U.S. city, where more than a thousands vehicles were trapped in rising water