The company involved in a construction incident on San Diego Zoo property in July will not face any citations, Occupational Safety and Health Administration (OSHA) officials said.
The construction incident, which happened on July 2, left four workers, contracted to work on the property through Rudolph and Sletten Inc., injured.
A statement from the San Diego Zoo following the incident said all four workers were "OK" after the incident.
Two of the injured went to Mercy Hospital and another went to UC San Diego Hospital, according to San Diego Fire-Rescue Media Services Manager Mónica Muñoz.
Following the incident, Cal/OSHA opened an investigation into Rudolph and Sletten and Performance Contracting.
"The division determined Rudolph and Sletten committed no violations related to the accident and issued a citation to Performance Contracting for hazards related to elevating work platforms," a statement from OSHA officials read.
The incident either occurred in the African Rocks area, a new exhibit that just opened Friday at the San Diego Zoo, or around a bridge construction area at the zoo, officials said.
The zoo has called the African Rocks exhibit their most ambitious construction project ever.
A towering waterfall nearly 70 feet tall is part of an impressive display inside the $68 million exhibit. Zoo officials say it's the most expensive and complex exhibit they've ever made.