![]() ![]() Construction of the remaining I-40 approaches and ramps will commence once construction of the main channel spans has been finished. Features of the main channel span retrofit include: serviceable performance following the maximum probable "Contingency Level Earthquake " (2500 year return period) three dimensional, nonlinear, time history analysis friction pendulum isolation bearings additional piles and strengthening of footings, columns, and webwalls and replacement and strengthening of selected superstructure members. Commonly deployed along with load balancing and app delivery solutions, the ASF detects and blocks attacks including the OWASP Top 10, WASC, Layer 7 DDoS, and zero-day attacks with pinpoint accuracy. PS&E for these spans will be finished and construction is expected to start in the Spring of 1999. Array web application firewalls provide a flexible and precise tool for securing business-critical resources. IAI is currently preparing final design, plans, specifications, and estimates (PS&E) for the main channel spans. Retrofitting the I-40 bridge significantly enhances public safety and reduces the potential for transportation and economic loss. as part of the repair work to the Forge Bridge after flooding in December 2015 which damaged the Forge Bridge. (IAI) to conduct a seismic evaluation and prepare retrofit design for the I-40 bridge. Design and construction requirements for Bridge retaining walls must be consistent with. additional piles and strengthening of footings, columns, and webwalls. Webwall - Gravity ABG creative geosynthetic engineering. ![]() The Departments of Transportation have contracted Imbsen & Associates, Inc. The I-40 bridge is situated at the southeastern edge of the New Madrid Seismic. Recognizing this consequence, the Arkansas and Tennessee Departments of Transportation have given priority status to the seismic evaluation and retrofit of the I-40 bridge. Considering the potential for another major earthquake and closure of the two bridge crossings due to earthquake damage, significant impacts to national/regional transportation and economics would result. The I-40 bridge is situated at the southeastern edge of the New Madrid Seismic Zone, where three of the largest earthquakes in the Central United States occurred in the early 1800's. The I-40 Mississippi River Bridge is a vital transportation, commerce, and defense link, being one of only two crossings of the Mississippi River in the Memphis, Tennessee area. THE I-40 MISSISSIPPI RIVER BRIDGE SEISMIC RETROFIT ![]()
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