Students at Lincoln University faced very long lines to vote Tuesday.

(CNN) — Long lines were common in several battleground states on Election Day, but students at Pennsylvania's Lincoln University may have set a new standard for patience.

Hundreds of voters who registered at the last minute turned out to cast ballots at the college outside Philadelphia, forcing precinct officers to verify their eligibility with Chester County's election office, said Agnes O'Toole, assistant director of the county's Department of Voter Services.

The result was a nearly 11-hour wait in a chilly drizzle for voters like Jacintha Johnson, a senior at the historically African-American school. Johnson told CNN that she got in line at 7:30 a.m. and voted at 6 p.m.

"Practically the entire school was out there," she said. "It started to rain. Students were complaining about being hungry. The school provided some snacks, finally, at about 10 o'clock in the morning. Now, the line is pretty much the same."

O'Toole said registration drives delivered forms for about 700 of the nearly 2,800-plus voters registered at that precinct on the October 6 deadline for this year's elections — "So when the poll books were printed, they were not in the poll books."

Calls to O'Toole's office verified most of those in line were registered voters. Others were issued provisional ballots, she said. But the process slowed down the line.

"The crowd has remained calm," O'Toole said. "There are defintely a few people having a hard time waiting in line for a long time, but it's been peaceful."

CNN has projected that Democratic presidential candidate Barack Obama will win Pennsylvania's 21 electoral votes.

Authorities reported massive voter turnout across the state, which was crucial for Republican nominee John McCain's White house bid. Election officials had advised counties to prepare for as many as 80 percent of the state's registered voters to turn out.

– CNN's Rob Frehse and Matt Smith contributed to this report.