The possibility of a proposed 20,000-seat music venue in Provo Canyon has taken another hit after leaders in Orem panned the idea.

The Orem City Council unanimously approved a resolution Tuesday evening, officially expressing opposition to the Vesper Amphitheater development.

Vesper’s backers have proposed a state-of-the-art music venue near the mouth of Provo Canyon. According to a concept plan the Vesper developers filed with Provo, the plan would feature hotel villas, restaurants, retail storefronts and up to 8,000 parking spaces.

The developers withdrew their application for an agreement with Provo and said they would start over, the city announced Sept. 2. The withdrawal came after weeks of criticism over the venue, whose seating capacity would have equaled that of Salt Lake City’s Delta Center or Sandy’s America First Field.

Vesper did not respond to a request for comment on the Orem resolution.

It’s rare for Orem’s mayor and City Council to comment on matters outside the city limits, they said, but the possible effects of the amphitheater were “too significant to ignore.” People stepping up to comment at Tuesday’s meeting seemed to feel the same way.

Orem resident Carissa Cantrell told leaders at Tuesday’s meeting that she lives in a neighborhood between the Orem City Cemetery and Provo Canyon — and wants the City Council to consider the safety of residents.

“Our small safe community neighborhood would be subjected to and used as overflow parking for Vesper Amphitheater,” Cantrell said.

Kaey Nelson, who lives in Provo, told the Orem leaders that her desire to preserve Bridal Veil Falls and the canyon as a whole prompted her to help launch the nonprofit Conserve Utah Valley.

“Vesper is not a bad idea,” she said. “It’s just where they are proposing to put it.”

Vesper’s backers first announced plans for the amphitheater in May. Leading the campaign is David Osmond, son of the late Alan Osmond, one of the founding members of the Osmond Brothers singing group. David Osmond said he and his uncle, Las Vegas showman Donny Osmond, were spearheading the development.

In their resolution, the mayor and City Council wrote that “we remain concerned about sound and light pollution, impacts to Orem’s Mount Timpanogos Park and Palisade Park and their users, parking impacts, and substantial traffic impacts on SR-189 (Provo Canyon Highway) and SR-52 (800 North).”

A development this size, they said, would require costly transportation improvements that would affect Orem residents.

Orem’s 800 North, for example, is the main street connecting the canyon and Interstate 15 and would become a major thoroughfare for music fans going to the proposed amphitheater from outside Utah County.

The City Council cited a letter it sent to its counterparts in Provo in June, in which Orem leaders raised concerns about traffic congestion, noise pollution, police enforcement and the venue’s potential effects on nearby parks and the Provo River.

Note to readers • Dylan Eubank is a Report for America corps member covering faith in Utah County for The Salt Lake Tribune. Your donation to match our RFA grant helps keep him writing stories.