The project included removing the trail, treating the subsurface layers, and laying new asphalt.
"We've had a tremendous amount of problems on this trail section because of the clay soil, which is extremely expensive to work with," said Shelly Lewis, public information supervisor for EBRPD. "It expands when wet, contracts when dry. The result is lots of cracking."
She noted that for this reason there have been a lot of cracks in the trail, which trail users have found inconvenient and often dangerous, and past efforts to repair the damage have resulted in short-term results. The rehabilitation project also includes a 750-foot section between Laurel Drive and Sycamore Valley Road.
"In 2005 we hired a consulted firm, Associated Engineering Consultants Inc., to analyze the soil and develop a paving section with a 15- to 20-year pavement life," said Lewis. "The project was originally bid in 2005 but far exceeded the consulting engineer's estimate and the project budget. Since that time, we received additional funding from Prop. 12 and reallocating funds to this project."
The total construction cost for both sections of trail rehabilitation is $412,259.
The work was done by Grade Tech Inc. of Castro Valley.
"There will also be new fences, gates and bollards at the entrances to the sections we're replacing," said Louis Guzman, park supervisor.
"That section of trail is one of the most popular for our nearly 1 million visitors on the trail each year," Lewis said.
"It'll be much more pleasant, especially for bikers, parents with strollers, and kids on skateboards and scooters," she added.
Dolores Fox Ciardelli