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NBI is a template that simplifies and better organizes reference calls to the Federal Highway Administration's (FHWA) National Bridge Inventory (NBI), an annually published data set on all bridges at least 20 feet (6.1 m) in length in the United States. This data includes the coordinates of the bridge, bridge type, when the bridge was built and ...
A "bridge sufficiency rating" is calculated, which is based 55% on the structural evaluation, 30% on the obsolescence of its design, and 15% on its importance to the public. As of 2008, a score of 80 or less is required for federal repair funding or 50 or less for federal replacement funding.
The Federal Bridge Gross Weight Formula, also known as Bridge Formula B or the Federal Bridge Formula, is a mathematical formula in use in the United States by truck drivers and Department of Transportation (DOT) officials to determine the appropriate maximum gross weight for a commercial motor vehicle (CMV) based on axle number and spacing ...
In the early hours of March 26, a 985-foot container ship struck the Francis Scott Key Bridge in Baltimore, bringing a portion of the 1.6-mile-long bridge down in less than 40 seconds.
Use our interactive map to see bridge ratings by county, ... 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... the high-profile accident focused attention on bridge safety across ...
In 2023, the Key Bridge was in the “fair” group, along with about 49% of the country’s bridges. Another 44% are rated “good” and almost 7% are “poor. Are California bridges safe?
Pontis is a software application developed to assist in managing highway bridges and other structures. Known as AASHTOWare Bridge Management since version 5.2, Pontis stores bridge inspection and inventory data based on the U.S. Federal Highway Administration (FHWA) National Bridge Inventory system coding guidelines.
AASHTO re:source, formerly the AASHTO Materials Reference Laboratory (AMRL), accredits laboratories. Accreditation is often required to submit test results to state DOTs. For example, a contract for the construction of a highway bridge may require a minimum compressive strength for the concrete used. The contract will specify AASHTO Test ...