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Diverging Diamond Interchange


New DDI in Nashville Part of Major Interchange Rebuild at I-40, Donelson Pike

The Tennessee Department of Transportation (TDOT) is wrapping up a major interchange project that has been in the works for a few years. Officials with the state agency expect these upgrades to relieve much of the heavy traffic on Interstate 40 near Nashville International Airport (BNA)....


CDOT Kicks Off Interstate 25 Interchange Project in Pueblo

The Colorado Department of Transportation, in partnership with SEMA Construction of Centennial, Colo., began construction of the new Interstate 25 and U.S. Highway 50B interchange on Nov. 18, 2024. The $114 million project is in Pueblo on I-25 from mile point 99.7 to MP 101.4 and on U.S....


WW Clyde Constructs Diverging Diamond Interchange in Colorado

To enhance safety and improve traffic flow, the Colorado Department of Transportation (CDOT) is constructing a diverging diamond interchange (DDI) at the intersection of Airport Road and Powers Boulevard (Colorado Highway 21 / U.S....


MD 4 Project to Add Diamond Interchange

The Maryland Department of Transportation State Highway Administration (MD SHA) continues work on a $283 million project to improve safety and mobility at the interchange of MD 4 (Pennsylvania Avenue) and MD 337 (Suitland Parkway) in the Upper Marlboro area of Prince George's County....


DDI Intersection Project Starts in Colorado Springs

The Colorado Department of Transportation (CDOT) began a $46 million effort in late July to build a more efficient intersection in Colorado Springs at the junction of Colorado Highway 21/South Powers Boulevard and Airport Road, the state agency announced....


SDDOT Diverging Diamond Interchange Project Earns 2024 Award

The South Dakota Department of Transportation's (SDDOT) Diverging Diamond Interchange (DDI) located on Interstate 90 at exit 59 and North LaCrosse Street in Rapid City was recently honored as a winner within the Western Association of State Transportation Officials (WASHTO) region for the 2024 America's Transportation Awards competition....


AECON Installs 50-Ton Girders for New Washington Bridge

Construction crews from design-builder AECON are progressing on the Washington Department of Transportation's (WSDOT) nearly $200 million I-90 — SR 18 Interchange Improvements project. Photo courtesy of WSDOTAs part of the overall project, the construction of a new bridge along SR 18 near Snoqualmie is a major part of the upgrades....


Miller Brothers Wins Bid for County Road 99 Interchange

Miller Brothers Construction of Archbold is the apparent, successful low bidder for the contract to construct a diverging diamond interchange (DDI) at County Road 99 and Interstate 75, in Findlay. The successful bid was $30.8 million....


Growth Spurs SDDOT's Sioux Falls Project

A $34.3 million reconstruction project on Benson Road and the Interstate 229 interchange is unfolding in Sioux Falls, S.D. The undertaking, a combined effort by the South Dakota Department of Transportation (SDDOT) and the city of Sioux Falls, includes construction of a diverging diamond interchange (DDI), structure development work and road widening....


ALDOT Plans to Build New $120M Interstate Exit in Hoover, South of Birmingham

Construction of the new Exit 9 on Interstate 459 in Hoover, Ala., is scheduled to begin in 2025 and be completed in 2027, Hoover Assistant City Engineer Blake Miller told the local chamber of commerce recently....


Today's Top Stories

  1. Manitou North America Adds Ferri Equipment as New GEHL Dealer  →
  2. $148M Iowa Tower Challenges Crew  →
  3. Bobcat Company Highlights Machine Security During National Vehicle Theft Prevention Month  →
  4. Bobcat Company Appoints Laura Ness Owens as Chief Marketing Officer  →
  5. TxDOT's Petrographic Lab Puts Concrete Under Microscope  →
  6. FAE BL0/EX Line, Now for 5-Ton Excavators With New BL0/EX-100 Model  →
  7. Thunder Creek Helps Largest U.S. Composter Save Time  →
  8. PT300 Becomes Even More Versatile With New SFM/PT Head.  →
  9. Kenworth Continues Expansion of PACCAR TX-12 PRO Automated Transmission — Now Available With Kenworth Medium Duty Models  →
  10. MDTA Reveals That the Demolition of Baltimore's Key Bridge is Likely to Begin July 7  →
  11. James R. Carter Paving Fashions Enviable Reputation in Its 70 Years  →
  12. VIDEO: Thompson Tractor Holds Tech Demo in Hanceville, Ala.  →
  13. Woohyun Kim Named New CEO of DEVELON North America  →
  14. BOMAG Americas Adds Decades of Industry Experience to Its Light Equipment Sales Team  →
  15. New $107M Connector Road Opens in Brewer, Maine Linking I-395 to State Highway 9  →
  16. Maine School District Found Pathways to Fund New Middle School Despite High Costs  →
  17. Purple Wave Hosts First Ohio Customer Appreciation Event  →
  18. USACE Awards Remaining Options for New Lock at the Soo  →
  19. VDOT Begins Toll Lane Construction on I-495 NEXT Project in McLean, Va.  →
  20. DHS Awards $309M Contract for 27 Miles of New Arizona Border Wall  →
  21. Grading Beyond Expectations  →





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