The Cuyahoga Valley National Park has received a major boost in developing its first mountain biking trails, so trail building should accelerate.

The park will receive $183,400 from the National Park Service’s Centennial Challenge program.

The Conservancy for Cuyahoga Valley National Park will add $198,700 from the John S. and James L. Knight Foundation.

Winning the federal grant is “a really big deal,” conservancy spokeswoman Patty Stevens said.

The combined money will be used to build much of the East Rim Trail, an off-road singletrack system of 8.8 miles.

The first trail will be built between Boston Mills Road and the Ohio Turnpike in Boston Heights. Work on that 2.3-mile section is scheduled to begin this summer.

Phase 2 of the project calls for building 6.2 miles of trails north of the Ohio Turnpike and south of Hines Hill Road, in Boston Heights, for intermediate cyclists. Phase 2 construction might start this year.

Previously, park officials said the available funds would pay for engineering Phase 2 but not construction.

Some of the trail work will require help from local mountain bikers and other volunteers.