Georgia Department of Public Safety’s Post

Damage to I-840 Bridge Prompts Closure - https://lnkd.in/gExM4bib

Damage to I-840 Bridge Prompts Closure - https://lnkd.in/gbWMn47H

Damage to I-840 Bridge Prompts Closure - https://lnkd.in/gsmHi-eF

On January 28, 2022, just before dawn, the Fern Hollow Bridge in Pittsburgh collapsed without warning. Despite several vehicles falling with the bridge, including an articulating bus, and another driving off the abutment after the collapse, there were no fatalities, though several people were seriously injured. The bridge, in 'poor condition' for over a decade, had visible signs of deterioration. The NTSB's recent report revealed systemic flaws in bridge inspection and repair prioritization, using advanced technology to analyze the collapse. This case highlights the need for rigorous maintenance and timely repairs to prevent such tragedies in the future. #InfrastructureSafety #BridgeCollapse #FernHollowBridge #NTSBReport #PublicSafety #Engineering #InfrastructureMaintenance https://lnkd.in/etwFjnDy

https://lnkd.in/dcxAQ6CT Our prayers are with those who grieve the loss of their loved ones Baltimore Bridge Collapse. As P&I and H&M surveyors and investigators, only after reviewing the available evidences viz. VDR, documentation, past history, PMS, procurement, condition and repair records, work that may have been in progress on board, Master’s SoF, interviewing the staff on board, can we arrive at facts. The visuals from this video of the container vessel Dali, only provides a basis for hypothesis for some of the possible causes and equipment failures, to be proven or disproven, by proper investigation. This video only shows that: The lights went off at 1.20 mins, possibly a blackout, battery powered lights can be seen in the accommodation, (Can you see navigation lights? I can’t), a stand-by DG or emergency DG started at 1.55 mins (plume of smoke) and deck and navigation lights came on at 2.20 mins (1 full minute later), continuous black smoke visible from funnel from 2.30 minutes; vessel moves hard stbd at 3.07 minutes (possibly to turn 180 degrees away from the bridge), blackout again (2nd time) at 3.27 mins; lights on again at 4.00 mins, hard port helm movement visible immediately (possibly to avoid collision with the pillar), 5.31 mins collision with pillar, 5.39 again blackout (3rd time), 5.42 the bridge falls on the deck of the ship. A different video on YouTube, shot from a different angle, shows that the smoke from the funnel stopped a few seconds before impact, (not clear whether the propulsion engine(s) started operating, or was the fuel/manoeuvring lever moved to zero/stop position) when the bridge team gave the helm to hard port, seconds before the collision. *from the linked video, we can only hypothesize that:* 1) Nav lights extinguishing every time the DGs shut down: this indicates a possibility that the back-up navigation batteries were past their renewal date. 2) continuous smoke (black?) from funnel till just a few seconds before collision indicate the possibilities of one or more of these: problem with fuel or fuel pumps / racks; or staff trying to start and run main engine(s) without the aux air blowers; or one or more units misfiring. 3) it appears that Emergency DG did not come on, as rudder steering seems to be available only when the main DGs comes on load… (with emergency DG power, the bridge would have had steering available to take action). Again, this could possibly be because of Emergency DG starter batteries past their prime. 4) did the company’s and ship’s ISM-SMS contingency plan include calling anchor stations immediately in case of engine or propeller failure in coastal or restricted waters, (or when in proximity of rigs / turbine installations) to drop one, or both, anchors and limit the vessels headway towards hazards? If yes, then this is not visible in this video.

The damage from the destruction of the Baltimore bridge by the container ship Dali will amount to billions of dollars, and the lawsuits will last for years. However, the owner of the ship will be protected from excessive claims thanks to a two-hundred-year-old law, which was also used by the owners of the Titanic more than a century ago. It is known that the Dali engine stopped and the power supply was lost before the collision with the bridge support; this may be due to the quality of the fuel. https://lnkd.in/dDnpeXm4

For firefighters by firefighters. Go behind the scenes and view the interior of one of our tactical burn buildings. We design these buildings to handle live fire simulations which ensure our nations firefighters are fully prepared for whatever obstacles they may encounter in the field. https://lnkd.in/gpPtr3ma #firetraining #tacticalbuildings #firetrainingbuilding #firesimulations #firetrainingstructure #firedepartmentsafety #NFPA #nfpa1402 #burnbuildings

The Eisenhower Interstate System "Interstate Highways use a numbering scheme in which primary Interstates are assigned one- or two-digit numbers, and shorter routes which branch off of longer ones are assigned three-digit numbers where the last two digits match the parent route." https://lnkd.in/eF5N97Q6

A concise and informative video. Demonstrates the need for diligence in bridge management.

Prepare for more M25 closures this spring... National Highways recently closed a five-mile stretch of road between junctions 10 and 11 to enable the demolition of the Clearmount bridge. This marked the first scheduled daytime shutdown of all lanes on the M25 since it opened — and necessitated an 11.5-mile diversion from Friday to Monday. After April, the organisation plans to close a section of the M25 between junctions nine and 10. And this time, the closure will involve an even longer diversion. Plus, a further three closures are set to take place before September. It's crucial that this is all signposted clearly to protect the safety of road users and workers alike! National Highways road closure report: https://bit.ly/3J4haZa Eager to learn more about the upcoming M25 closures? BBC News has all the information. 👇 https://bbc.in/3vAKkvV  #RoadClosures #HighwayMaintenance #Motorways