By Connecticut

BELLVILLE (CBSDFW.COM) – With major roads out of Houston under water, relief efforts trying to get supplies in aren’t fairing much better.

Eight people have now died in Harvey’s path, including a family of six. Their van was swept away from the very streets peppered with supply trucks driven by people like Derrick Massey from Austin.

CBS11 caught up with him on County Road 529, where floodwaters again halted his relief mission.

And like hundreds of other Texans wanting to help, Massey came prepared with 16,000 pounds of supplies.

“I’m carrying over 100 loaves of bread, 100 cases of water, peanut butter and jelly, milk… baby formula,” said Massey of his cargo. “I know everyone is out here just trying to help and serve the community best we can.”

HOUSTON, TX – AUGUST 28: A man waves down a rescue crew as he tries to leave the area after it was inundated with flooding from Hurricane Harvey on August 28, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. (Photo by Joe Raedle/Getty Images)

Volunteers like Massey make up a small but significant part of humanitarian aid flooding into Houston. If only they could get through…

TXDOT and DPS have created a special page to help navigate around flooded roads surrounding the Houston area.

Governor Greg Abbott has activated the Texas National Guard, meaning 12,000 people were called to help.

In all, the City of Houston says its 911 system has processed more than 75,000 calls since Harvey slammed the Texas coastline.

A total of 18 counties now qualify for federal help.