The audio recordings also capture the decisive actions of the officers who halted traffic and closed the bridge, ultimately saving numerous lives.
Their heroic deeds were commended by Maryland Governor Wes Moore and Baltimore Mayor Brandon M. Scott on Wednesday.
On Wednesday, two of the six missing construction workers, presumed dead, were found in a red pickup truck submerged 25 feet underwater in the Patapsco River.
The recovered individuals were identified as 35-year-old Alejandro Hernandez Fuentes, originally from Mexico, and 26-year-old Dorlian Ronial Castillo Cabrera, originally from Guatemala.
They were described by family and friends as dedicated husbands, fathers, and hard workers.
The search for the remaining four missing individuals is ongoing.
In a dispatch recording, one officer can be heard directing traffic control, instructing officers to halt all traffic on the Key Bridge due to a ship that had lost its steering.
Another officer is heard asking about the presence of a crew working on the bridge, suggesting that they be notified to temporarily evacuate.
Moments later, a new officer reports over the radio that the entire bridge has collapsed.
The dramatic collapse of the bridge occurred within seconds, as shown in video footage.
However, the Dali's ill-fated journey began 50 minutes earlier.
The massive cargo ship, nearly 1,000 feet long, departed from the port of Baltimore at 12:39 a.m. on Tuesday, according to the National Transportation Safety Board (NTSB).
The ship entered the channel at 1:07 a.m. and reached a speed of 8 knots (9.2 mph) by 1:24 a.m.
At 1:24 a.m., multiple alarms can be heard on the ship's audio recording.
Two minutes later, the ship's pilot called for nearby tug boats to assist and informed the Maryland Transportation Authority (MDTA) of the loss of control.
At 1:27 a.m., the pilot ordered the ship to drop its port anchor and continued to issue steering commands.
The pilot radioed that he had lost all power and was approaching the bridge.
The MDTA was able to notify police units on both sides of the bridge to stop traffic, as the ship continued at a speed of less than 7 knots (8 mph).
The ship's audio recording captured the moment of impact at 1:29 a.m., coinciding with the pilot's report of the bridge collapsing.
As Baltimore, Maryland, and the nation grapple with the loss of six lives, a prominent landmark, and crucial economic infrastructure, attention has shifted to the investigation into the sudden loss of power of the massive Dali cargo ship and the rapid collapse of the bridge.
During a news conference on Wednesday, Coast Guard Rear Admiral Shannon Gilreath stated that the Dali had undergone routine maintenance while in the port of Baltimore, with no reported issues.
He added that they were only informed about routine engine maintenance and not of any problems with the vessel's engine.
National Transportation Safety Board Chair Jennifer L. Homendy and a team of investigators boarded the ship on Wednesday to interview the crew and collect evidence.
The NTSB has recovered the data recorder, which will provide extensive data, including the ship's exact position and system status at the time of the collision.
Homendy cautioned that the investigation would be extensive and could take between one to two years.
Meanwhile, one of the largest ports on the eastern seaboard remains closed, impacting the supply chain for consumer goods, including automobiles, which typically relies on 4,900 trucks and billions of dollars of trade daily.