USDOT Announces New ‘Mobility and Inclusion’ Programs
A four-year, $40 million program to help develop more “comprehensive, seamless, and efficient transportation solutions” is but one several efforts the U.S. Department of Transportation launched on October 29 to foster “increased mobility access” for older adults, people with disabilities, and those living in “underserved communities” in rural and small urban areas. “We’re here today to ensure that the revolutionary new technologies being developed will help create a more inclusive transportat...
ADOT Uses New Technique to ‘Slide’ New I-40 Bellemont Bridges into Place
PHOENIX – A new technique that basically slides precast bridges into place has greatly reduced delays for the Bellemont community with an Arizona Department of Transportation project replacing spans over Interstate 40 at Transwestern Road west of Flagstaff. Using this technique, which the contractor proposed, allowed crews to replace the bridges during a nine-day closure of Transwestern Road over I-40 rather than having the six to eight months of restrictions required for a traditional bridge...
Transit Delivers More Than $3 Billion in MO According to 2019 Impact Study
Citizens for Modern Transit reported the findings of a six-month study designed to quantify the economic impact of public transit services in the state of Missouri to area leaders today at its quarterly “Talking Transit “ event held at the St. Louis Regional Chamber Collaboration Center. Highlights, including the fact that the direct and indirect impact of public transit in Missouri this year exceeds $3.67 billion, were reported before the conversation switched gears to underscore the distinct l...
Application of Microbial Facilitated Stabilization for Sustainable Improvement of Expansive Pavement Subgrades
Expansive soils, also known as swell-shrink soils, have been a problem for civil infrastructure such as roads and foundations since ancient times. These soils swell and shrink with changes in moisture content, causing buildings and pavements to crack. The reason for this behavior is the presence of the heaving/swelling mineral that expands when exposed to water. These soils are present in the majority of the states in the United States and cover about one-fifth of the land area of the country. E...
AASHTO Releases a Request for Proposals (RFP) for the Enhancement and Support of AASHTOWare Bridge Design & Rating
A Request for Proposals (RFP) to solicit competitive proposals for professional services to complete the development and delivery of the first release of the planned modernized AASHTOWare Bridge Design-Rating system (BrDR 7.0) and to provide ongoing maintenance, support, and enhancements to the AASHTOWare Bridge Design-Rating products. A project to deliver a modernized version of the AASHTOWare Bridge Design-Rating software was initiated in July 2016. The goals of the original BrDR modernizat...
Video: Ford’s Don Butler Focuses on Future of Vehicle-to-Vehicle Connectivity
In a speech at the American Association of State Highway and Transportation Officials 2019 annual meeting in St. Louis, Don Butler, executive director for Connected Vehicles and Services at Ford Motor Company, stressed that reserving the 5.9 GHz wireless communication spectrum for transportation safety use is critical to the future of vehicle-to-vehicle connectivity.
Load, Capacity Calculation Errors, Inadequate Peer Review Led to Pedestrian Bridge Collapse
WASHINGTON — The National Transportation Safety Board determined, during a public board meeting held Tuesday, that load and capacity calculation errors made by FIGG Bridge Engineers, Inc., are the probable cause of the fatal, March 15, 2018, Florida International University pedestrian bridge collapse in Miami. Contributing to the collapse was Louis Berger’s inadequate peer review, which failed to detect FIGG’s calculation errors in its design of the main span truss member 11/12 nodal region a...
Oklahoma Department of Transportation announced funding approval for U.S. Highway 169 widening
Owasso : This week, the Oklahoma Department of Transportation (ODOT) announced funding approval for U.S. Highway 169 widening. ODOT officials met with Owasso City and Chamber representatives on Thursday to confirm the funding in the 8-year plan. The approved $8.5 million will widen two miles from 66th Street north to 86th Street from four to six lanes in 2024. Other projects affecting Owasso in the 8-year plan include reconstruction of the 76th Street bridge and approaches on Highway 169 and...
Engineers Put Leonardo da Vinci’s Bridge Design to the Test
Recent graduate student Karly Bast shows off the scale model of a bridge designed by Leonardo da Vinci that she and her co-workers used to prove the design’s feasibility. Image: Gretchen Ertl Proposed bridge would have been the world’s longest at the time; new analysis shows it would have worked. In 1502 A.D., Sultan Bayezid II sent out the Renaissance equivalent of a government RFP (request for proposals), seeking a design for a bridge to connect Istanbul with its neighbor city Galat...
LMN Architects Designs New Bridge in Everett Washington
Seattle - LMN Architects is pleased to celebrate the design and construction of the new Everett Grand Avenue Pedestrian Bridge in Everett, Washington. The bridge is a unique piece of public infrastructure that will provide a vital new link between the city of Everett to its growing waterfront district. The project is emblematic of LMN Architects approach to crafting contemporary, pragmatic and transformative infrastructure within the public realm. The bridge will establish a new connection be...