The Hill12d
These states have bridges that need to be assessed for collapse risk
NTSB is investigating last year's collapse of Francis Scott Key Bridge It found that bridge was almost 30 times AASHTO's risk threshold 68 bridges in US were designed before this guidance was ...
KHOU 1112d
Major Houston-area bridges identified as ‘high risk’ — Here’s what we know
It takes into account: Bridge and span geometry Pier protection and lateral capacity Vessel traffic patterns and speeds Waterway characteristics The assessment follows AASHTO’s Method II risk ...
katu12d
Three Oregon bridges identified in NTSB's nationwide urgent safety assessment
Homendy says her team had to dig for data to run calculations and were surprised by just how poorly the key bridge rated. "It was recommended by AASHTO in 1991, it was recommended by AASHTO in ...
foxbaltimore13d
NTSB: Key Bridge was nearly 30 times above acceptable risk for bridges at time of collapse
In 1991, AASHTO (American Association of State Highway and Transportation Officials), which sets the standards and methodology for bridge design, construction, inspection, and maintenance ...
NBC New York12d
Three of NYC's iconic bridges in need of vulnerability assessments, NTSB says
According to the agency's list, 13 bridges in New York are in need of the vulnerability assessment, as recommended by the American Association of State Highway and Transportation Official (AASHTO).
WTSP12d
NTSB flags Skyway Bridge as one of 68 bridges requiring risk assessment
ST. PETERSBURG, Fla. — St. Petersburg's Sunshine Skyway Bridge, Florida's tallest bridge, has been identified by the National Transportation Safety Board as one of 68 bridges that have an ...