
The ship strike in Baltimore has left a significant impact on the community. A cargo ship collided with the Francis Scott Key Bridge, causing extensive damage to the bridge's structure.
The incident occurred on a busy Saturday morning, with multiple eyewitnesses reporting the collision. The bridge's closure has caused major traffic disruptions, with commuters and locals alike struggling to find alternative routes.
The Francis Scott Key Bridge is a vital transportation artery in Baltimore, carrying over 100,000 vehicles per day. The bridge's closure is expected to have a ripple effect on the local economy, with businesses and residents feeling the pinch.
Ship Lost Power Before Baltimore Bridge Crash
The cargo ship Dali experienced two catastrophic electrical failures just minutes before it crashed into Baltimore's Key Bridge.
The power outages were triggered by the tripping of two critical circuit breakers, which caused several pumps required for the ship's single propeller and its single rudder to stop working.
The ship had already experienced two onboard blackouts about 10 hours earlier, one of which was caused by a crew error.
The emergency generator was not configured to power the ship during the electrical failures.
The FBI and Coast Guard are investigating whether the crew failed to report the in-port power outage as part of a criminal investigation.
The NTSB is still investigating the electrical configuration following the first in-port blackout and potential impacts on the events during the accident voyage.
Damage and Consequences
The damage from the ship strike was extensive, with an estimated 27-52 million pounds-force of force being unleashed on the bridge.
The bridge's continuous truss was fracture critical, meaning it had no redundancy against removal of support of any particular part of it, which ultimately led to its collapse.
The collision destroyed the southwest main truss pier, causing the south and central spans to collapse, and ultimately leading to the collapse of a northern span.

Within 30 seconds, the entirety of the trussed spans, and three others, had fallen, highlighting the devastating speed of the collapse.
Dali, the ship that struck the bridge, sustained hull damage above the water line and was impaled by remnants of the bridge superstructure, estimated to be 3,000 to 4,000 tonnes of bridge wreckage.
Damage
The force of the impact with the pier was estimated to be between 27 and 52 million pounds-force, which is incredibly powerful. To put that into perspective, Saturn V rockets generated 7.9 million pounds-force of thrust at launch.
The bridge's continuous truss relied on its overall structure to maintain integrity, but it had no redundancy against removal of support of any particular part of it. This made it fracture critical.
The collision destroyed the bridge's southwest main truss pier, causing the south and central spans to collapse. The failure sequence took seconds, and within 30 seconds the entirety of the trussed spans, and three others, had fallen.

Of Dali's 4,700 shipping containers, 13 were damaged in the collision. Two containers fell into the water, but neither carried hazardous substances.
The ship, Dali, sustained hull damage above the water line and was impaled by remnants of the bridge superstructure. The ship remained watertight, but the shipping company initially claimed there was no water pollution directly from the ship.
Authorities installed 2,400 feet of water containment booms around the ship after a sheen was detected in the waterway. This was due to 21 US gallons of oil that leaked from a bow thruster on the ship.
An investigation into a hazmat spill was announced by the NTSB after it was discovered that 56 containers had been breached, including some that carried about 764 tons of hazardous materials.
Baltimore Bridge Collapses After Ship Ramming
The force of the impact with the pier was estimated to be between 27 and 52 million pounds-force, which is incredibly powerful.
The bridge's continuous truss relied on its overall structure to maintain integrity, but it was fracture critical, meaning it had no redundancy against removal of support of any particular part of it.
The collision destroyed its southwest main truss pier, causing the south and central spans to collapse, and ultimately leading to the collapse of three other spans.
Each failure sequence took seconds, and within 30 seconds the entirety of the trussed spans had fallen.
The bridge had dolphin and fender protection against ship impact, but these protections were insufficient.
Of Dali's 4,700 shipping containers, 13 were damaged in the collision, with two falling into the water.
The ship, Dali, sustained hull damage above the water line and was impaled by remnants of the bridge superstructure, estimated to be 3,000 to 4,000 tonnes of bridge wreckage.
The ship remained watertight, but a sheen was detected in the waterway, leading authorities to install 2,400 feet of water containment booms around the ship.
A bow thruster on the ship leaked 21 US gallons of oil into the waterway, contributing to the environmental damage.
The NTSB announced an investigation into a hazmat spill resulting from breached containers aboard Dali, including some of the 56 containers that carried about 764 tons of hazardous materials.
Investigation and Response

The investigation into the ship strike in Baltimore is ongoing, with the Coast Guard and local authorities working together to determine the cause of the incident.
The ship, which was traveling from Norfolk to Baltimore, was carrying a cargo of containers and vehicles.
The Coast Guard has stated that the ship was traveling at a speed of around 10 knots at the time of the incident, which is within the allowed speed limit for the area.
The investigation will likely take several weeks or even months to complete, and will involve reviewing the ship's navigation equipment, as well as interviewing the crew members.
Investigation
Investigation is a critical step in responding to a crisis. It involves gathering and analyzing information to determine the cause and extent of the issue.
A thorough investigation should start with a clear understanding of the problem, which can be achieved by gathering data from various sources, including interviews with those affected, physical evidence, and documentation.

The investigation process can be time-consuming and may require specialized expertise, such as forensic analysis or technical evaluation.
It's essential to involve relevant stakeholders in the investigation to ensure that all perspectives are considered and that the investigation is thorough and unbiased.
A well-planned investigation can help identify the root cause of the issue and inform the development of effective responses.
Video: Massive Response
The massive response to the Maersk ship striking the Baltimore bridge is a testament to the quick action of emergency responders.
The incident occurred at 1:27 a.m. on March 26, when a report was made to the U.S. Coast Guard Sector Maryland – National Capital Region command center.
Response boat crews from Coast Guard Stations Curtis Bay and Annapolis have been deployed to the scene for active search and rescue.
A Coast Guard Air Station Atlantic City MH-65 Dolphin helicopter crew is also en-route to the incident.
An Urgent Marine Information Broadcast has been issued regarding the incident, and a 2,000-yard safety zone has been put in place for the surrounding waters.

Mariners are being urged to avoid the area to ensure their safety.
The Coast Guard is coordinating with local, state, and federal agencies in response to the bridge collapse.
Maryland Gov. Wes Moore has declared a state of emergency following the bridge collapse.
The U.S. Coast Guard is working with the Maritime and Port Authority of Singapore (MPA) to provide assistance in the investigation.
The MPA has confirmed the incident and will be providing full cooperation to the U.S. Coast Guard in its investigations.
Local Impact
The local impact of the ship strike in Baltimore has been significant, with 8,000 jobs potentially affected by the bridge's collapse.
Traffic congestion has been a major issue, with warnings of delays issued to motorists as far away as Virginia.
Vehicles carrying hazardous loads or too tall for the tunnels are being detoured along the western section of I-695, bypassing the city of Baltimore altogether.
Cruise ships originally bound for Baltimore have been forced to dock in other cities, such as Norfolk, Virginia, where passengers have been taken back to Maryland by bus.
The waterway's closure is estimated to cause a daily loss of $15 million, a staggering figure that highlights the economic impact of the disaster.
To help small businesses affected by the collapse, the Small Business Administration (SBA) has made low-interest and long-term loans available of up to $2 million.
By April 4, the SBA had received 500 applications, a testament to the severity of the situation.
Emergency legislation has been introduced in the Maryland General Assembly to provide financial assistance to workers and local businesses affected by the disaster.
This legislation includes a provision to establish a state scholarship for the children of the maintenance workers killed in the collapse.
Frequently Asked Questions
How long will the Baltimore bridge take to rebuild?
Demolition of the Baltimore bridge will begin in the spring, with a rebuild expected to take several months. The project's timeline will be determined by the scope and complexity of the rebuild, which is estimated to cost around $2 billion.
Sources
- https://en.wikipedia.org/wiki/Francis_Scott_Key_Bridge_collapse
- https://www.cnn.com/2024/05/14/us/baltimore-bridge-collapse-ntsb-report/index.html
- https://apnews.com/article/baltimore-bridge-collapse-53169b379820032f832de4016c655d1b
- https://www.marinelog.com/news/breaking-rescue-underway-following-baltimore-bridge-collapse-after-containership-strike/
- https://www.cbs42.com/top-stories/cargo-ship-hits-baltimores-key-bridge-collapsing-it-and-sending-vehicles-into-the-water/amp/
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