There are several options for tickets to King's Dominion (located off exit 98 on Interstate 95, just 20 miles north of Richmond Virginia):
An Adult Single Day ticket costs $59.99 at the gate, or $49.99 if purchased online.
An Adult Single Day 3 Day Advance ticket costs $44.99 if purchased online.
A Jr/Sr Single Day ticket costs $37.99 at the gate, or online.
They also offer Season Passes.
The Silver Season pass gives you unlimited admission on any publicly open day through Labor day (but not the Halloween Haunt) for $69.99
The Gold Season Pass adds free parking as well as free admission to Halloween Haunt, and early access to Waterworks Water Park, plus other benefits. These passes cost $99.99 each, or $94.99 in bundles of 4 or more.
On July 23, 2012, the Dominator, a Kings Dominion roller coaster, was reopened after a 3 day closing to perform a safety inspection after a park guest was found unresponsive at the end of a ride.