Most seats for concerts at the Hollywood Bowl for the 2015 season will be more expensive under a new pricing structure approved unanimously by the Los Angeles County Board of Supervisors on Tuesday.

It’s the second straight year the Parks and Recreation Department through the Los Angeles Philharmonic Association sought a hike in prices across most seating locations — with many of the tickets for upcoming events jumping 3.1 percent.

The steepest hikes were aimed at special events at the Hollywood Bowl — with a $310 ticket climbing to $320 next year.

Pool circle seats — those closest to the semicircle stage — for Friday, Saturday and Sunday Night Pops will go up $5 to $177.

Andre Hendron, spokesman for Parks and Recreation, said the spikes reflected rising costs in labor and maintenance along with fees for performing artists using the facility. The $28,000 that is raised through the price hikes will result in an estimated $922,000 in the Hollywood Bowl Improvement coffers in 2015.

But the proposal wasn’t all bad news for Hollywood Bowl attendees, with some ticket prices dropping slightly.

The modest dips covered only two nights and two types of seats. Sections G and J — first section in the promenade — for Friday and Sunday night Pops will get a $2 reduction and Terrace Level sections D and E for Wednesday Nigh Jazz will drop by $1.

The increases follow a six-tiered ticking pricing structure that covers Friday, Saturday and Sunday pop concerts as well as world music shows on Sunday. It also spans classical concerts on Tuesday and Thursday and jazz shows on Wednesday.

According to the Parks Department, 40 percent of all tickets — about 6,900 — will still be $28 or less.

The Hollywood Bowl is under the Parks and Recreation Department through a 30-year lease between the county and the Los Angeles Philharmonic Association that was inked in 2004.