UC Riverside scientists say bacteria in natural asphalt are munching on the petroleum and burping up methane gas in Hancock Park. Tar pits' secret bubbles up - Los Angeles Times ...

Explore the pros and cons of installing a tar and gravel roof. Discover its design and whether it's the best investment for ...

Maintaining roads takes a big chunk out of municipal budgets. To meet the ever-rising cost of road paving, Mountain Top communities have relied on Community Development Block Grants, Local Share Ac… ...

Asphalt has been known since prehistoric times, and we in California should be intimately familiar with it. Natural deposits in the San Mateo Peninsula were mined to give San Francisco its first ...

COAL TAR VS. ASPHALT "It does what customers want it to do," she says, adding that they pick coal tar products over asphalt ones 85% to 90% of the time when both are offered.

For the record: 4:22 p.m. Oct. 28, 2022 An earlier version of this story said the dragonfly that got stuck in the asphalt was observed near Pit 23 of the La Brea Tar Pits. It was near Pit 91.

Austin, Texas, in 2006, was the first city to ban coal-tar-based asphalt sealants for contaminating the environment. Today the sealants are banned in Washington, D.C., in the states of Minnesota ...