Iowa city to start full enforcement of noise camera program to combat Jake brakes

This week, the City of Avoca, Iowa, announced plans to move ahead with full implementation of its Noise Camera Program, which specifically targets semi trucks and other vehicles using engine compression (Jake) brakes

Jake Brake Enforcement Starts In October

On September 8, 2025, Avoca city officials said that following the success of a spring pilot project, full implementation and enforcement operations of the Noise Camera Program would begin in October 2025.

The Noise Camera Program is concentrated along Highway 59 and it uses “calibrated microphones and high‑resolution cameras detect when noise exceeds ordinance limits, capturing brief audio and video of the vehicle.” The video is then reviewed by staffers and violators are issued citations by mail.

The city will install “Photo Enforced” signage to let drivers know that the program is in effect.

“Jake brakes have been a problem in our community for a long time; it’s exciting to finally have a way to do something about it,” said Mayor Tom Bruck.

City Says Repeat Jake Brake Offenders Are A Problem

During the pilot that took place in the spring of 2025, the Noise Camera system documented 183 violations committed by 83 unique vehicles.

“About 44% of these violations were attributable to repeat behavior, with nearly one-third were linked to just five individuals,” Avoca city officials said.

The City of Avoca says that the program does not change the existing engine brake ordinance but that it provides additional ways to enforce that ordinance.

“Quality of life for our residents is the city’s top priority,” said City Administrator Tyler Trout. “Our pilot demonstrated that targeting repeat violators can make a big difference. With this technology, we can more effectively address the few drivers responsible for most of the disruption, improving daily life for the entire community.”