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Diverging Diamond Interchange


First Ever Diverging Diamond Interchange in California

Construction of the SR 120/Union Road Interchange takes place in the city of Manteca, which is is the first ever Diverging Diamond Interchange (DDI) in California. ...


Port of Entry Project Will Be 'Clean, Green and Smart'

As part of the California Department of Transportation (Caltrans) and San Diego Association of Governments (SANDAG) state Route 11 (SR-11)/Otay Mesa East Port of Entry project, crews from Skanska US Civil are constructing the final segment of the future toll road SR-11 and the southbound connector ramps, linking southbound State Route 125 (SR-125) to eastbound SR-11 and eastbound state Route 905 (SR-905)....


DDI Will Be Erected on Interstate 35

Officials ceremonially shoveled dirt in Austin last July to launch the latest rendition of an interchange design called a "diverging diamond interchange." Commonly referred to as a DDI, the design is a relatively new wrinkle in highway architecture....


Alabama's First Diverging Diamond Interchange Nearing Completion

DDIs are particularly effective at locations, like the one in Alabama, that have:High volumes of left-turn traffic on and off of freeway rampsLeft-turn related safety challenges Moderate and unbalanced crossroad traffic through the interchangeA need for additional capacity, without widening According to the Alabama Department of Transportation (ALDOT), "DDIs improve safety by reducing vehicle-to-vehicle conflict points from 26 — as in a conventional diamond interchange — to 14 points....


Sacyr Construction USA Continues Work on Fla.'s First Coast Expressway

Phase 2 of the Florida Department of Transportation's (FDOT) First Coast Expressway project (FCE) is underway and expected to be delivered in mid-2025. Back in March, crews from Sacyr Construction USA LLC first began working on the north segment of the job, a $229 million contract that is being funded by the Florida Turnpike Enterprise....


TxDOT Breaks Ground on Innovative Intersection Project

Another diverging diamond intersection (DDI) is coming to Travis County, following a groundbreaking ceremony on July 24 for the I-35 at Parmer Lane project. The Texas Department of Transportation was joined by Texas Transportation Commission Chairman J....


ADOT Oversees $50M Project to Improve Interchanges

Described as a project that will help move people and products for decades to come, a $50 million undertaking to reconstruct two busy interchanges along Interstate 17 in north Phoenix, Ariz., is under way....


Crews Bring Michigan's Old I-75 Into 21st Century

Work is set to begin in March on Segment 2 of the $1.6 billion I-75 modernization project in Oakland County, Mich., part of the Detroit metropolitan area. The roadway is the most heavily used commuter route in the county, with 174,000 vehicles traveling it daily....


Redwood Road Project Is Among UDOT's 2019 Priorities

Considered one of the top ten construction priorities for the Utah Department of Transportation (UDOT) in 2018, the I-215 Redwood Road project requires crews to build a new bridge east of the existing Redwood Road bridge over I-215....


Construction Begins on Nashville Area's First Diverging Diamond Interchange

Construction is under way on an interchange improvement project on Interstate 24 at Hickory Hollow Parkway in Nashville. The current interchange at Exit 60 is a partial-access facility, which was constructed to accommodate the Hickory Hollow Mall area in the 1970s....


Today's Top Stories

  1. Demolition Begins On D.C. Pavilion to Make Way for Bezos Learning Center  →
  2. National Equipment Dealers Acquires Carolina Equipment Rental, Sales & Service in Western North Carolina  →
  3. Komatsu Technology Featured at ConExpo-Con/AGG 2023 Designed to Help Owners Improve Efficiency, Productivity  →
  4. Case Launches Minotaur DL550 Compact Dozer Loader  →
  5. John Deere Previews Largest ConExpo-Con/AGG Presence to Date  →
  6. Bobcat Company Opens New Aftermarket Parts Distribution Center in Atlanta  →
  7. TxDOT Promotes Several Employees to New Positions  →
  8. Boom Supersonic Breaks Ground On Overture Aircraft Plant at Greensboro, N.C., Airport  →
  9. John Deere Introduces New P-Tier Articulated Dump Trucks  →
  10. South Carolina Approves $144M to Fund New Access Road to Charleston Airport  →
  11. National Equipment Dealers Acquires Carolina Equipment Rental, Sales & Service in Western North Carolina  →
  12. Micron to Build Mammoth $31B Semiconductor Chip Plant Near Syracuse, N.Y.  →
  13. MDOT Begins Rehabilitation Project On 10 Baltimore County Bridges  →
  14. Rebuilding of Two I-89 Bridges in New Hampshire Continues  →
  15. When Treating Wintry Roads, Which Material Is Better: Salt or Sand?  →
  16. World of Concrete Makes Strong Vegas Showing  →
  17. Trench Box Installations Require Knowledge of OSHA Safety Rules  →
  18. As Part of $1.3B Upgrade, Georgia Power to Bury Electric Lines in Buckhead  →
  19. Volvo CE Partners With NAPA on The Road Forward  →
  20. Crews Tackle Slew of Span Projects in Lower Westchester, N.Y.  →




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