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ENVIRONMENTAL SUSTAINABILITY HIGHWAY PROJECTS
NHAI makes 80% plantation key to highway completion certificate- In 2021, Victoria used 2,100 tons of recycled road base to rebuild the Hume Freeway. 5 years later, its 850-metre stretch had turned waste into a longer-lasting road too
- Nearly 300 tonnes of unwanted glass were headed for the landfill. Idaho used them to build a highway instead and solved a local landfill crisis
- No trees, no completion certificate: NHAI mandates 80% plantation and 90% sapling survival along National HighwaysNational Highways Authority of India mandates 80 percent plantation coverage for project completion. A minimum ninety percent sapling survi...09 Sep, 2026, 06.34 PM IST
- In 2021, Missouri added just 1% waste plastic to a two-mile road, that tiny share consumed 10 tons, equal to 750,000 soda bottlesIn 2021, Missouri transportation officials discussed a road project that tested recycled plastic in asphalt pavement. Engineers from the Un...09 Sep, 2026, 12.50 AM IST
- After two-year slowdown, national highway project awards fast-trackedNational Highways Authority of India is accelerating project awards for the upcoming fiscal year. Seventy-two percent of identified project...09 Sep, 2026, 12.00 AM IST
- In 1990, Waupaca Foundry supplied 20,000 tons of used sand for a Wisconsin highway pilot project. 12 years later, its next contract called for 80,000 tons for Highway 10A highway in Wisconsin became an unexpected test ground for recycled industrial sand. In 1990, Waupaca Foundry supplied about 20,000 tons o...08 Sep, 2026, 11.09 PM IST
- In 2025, Nebraska put two million plastic bags into a 4,000-foot road; it became the state’s first recycled-plastic roadNebraska put the equivalent of two million plastic bags into a 4,000-foot road in 2025, creating the state’s first recycled-plastic road. T...08 Sep, 2026, 09.11 PM IST
- Why are Europe’s water protection laws being rewritten? Environmental groups challenge EU’s fast-moving deregulation driveEnvironmental groups have challenged European Union water protection rule revisions. They argue the European Commission moved too quickly w...08 Sep, 2026, 07.31 PM IST
- At 18, this Virginia teen helped 70 young volunteers to restore the Chesapeake Bay. They removed nearly 5,000 pounds of debris in a yearAt just a teenager, James Hemphill launched a remarkable six-year environmental initiative. Co-founding Project Green Teens, he rallied num...08 Sep, 2026, 06.06 PM IST
- In 1999, Woody Harrelson started building an 8.5-acre Maui sanctuary around sustainable living. 26 years later, the estate runs on solar power and grows all its own foodIn 1999, Woody Harrelson began creating a sustainable sanctuary on Maui, turning his home into an experiment in simpler living. By 2005, he...07 Sep, 2026, 07.05 PM IST
- Oregon’s bridge program diverted 640,162 tons of construction material from landfills; FHWA valued the landfill diversion at $21.3 million across 208 bridgesBundled bridge contracts streamline multiple projects into a cohesive framework, enhancing efficiency and minimizing costs. This strategy p...05 Sep, 2026, 02.50 PM IST
- Colorado rebuilt part of US 24 by reconditioning its old asphalt in place; the $5.7 million project avoided hauling in more than 40,000 tons of new baseColorado has made strides in sustainable road maintenance with the successful recycling of old asphalt on US Highway 24. By saving over 40,...05 Sep, 2026, 02.40 PM IST
- Arkansas recycled old I-30 concrete in place, avoiding more than 95,000 tons of new stone and about $15,000 in truck fuelArkansas has made strides in sustainable development by recycling old concrete on Interstate 30 near Little Rock. The innovative technique ...05 Sep, 2026, 02.30 PM IST
- In 2006, Green Belt Movement began restoring Kenya’s Aberdares after years of human pressure. 18 years later, 3.8 million trees had been planted across 2,000 hectaresThe Green Belt Movement rehabilitated Kenya's Aberdares Forest, a vital water source. Illegal logging and cultivation threatened this prima...04 Sep, 2026, 10.29 PM IST
- In 1972, Illinois built a highway embankment with 246,000 cubic yards of coal ash. It’s still holding up even after 50 yearsIn 1972, a groundbreaking highway project in Illinois incorporated coal fly ash as a structural fill, challenging traditional practices. Th...04 Sep, 2026, 09.46 PM IST
- In 2011, NASA built a 50,000-square-foot California office that used 90% less drinking water and was designed to produce 20% more energy than it neededNASA’s Sustainability Base was designed as a 50,000-square-foot office that used just 12% of conventional electricity and 10% of potable wa...04 Sep, 2026, 07.12 PM IST
- In 2011, Lovell FHCC joined a green federal challenge with 3 focus areas. 3 years later, LED retrofits cut electricity 15%, saving $500,000 and 7.4 million pounds of CO2Lovell FHCC lighting project remains a useful example of how sustainability goals can produce measurable results when they are connected to...03 Sep, 2026, 04.13 AM IST
- In 2022, Hawaii used 195,000 plastic bottles to rebuild a road. Engineers found an alternative use for recycling plastic waste, but there's a catchHawaii's officials have embarked on an innovative experiment to blend recycled plastic into road asphalt, effectively repurposing nearly 20...02 Sep, 2026, 03.22 PM IST
- In Maine, engineers turn about 1 million scrap tires a year into lightweight highway fill; the shredded rubber stabilizes embankments built on weak marine clayInnovatively transforming shredded tyres into construction materials for highway embankments, Maine tackled substantial waste tyre pileup w...31 Aug, 2026, 02.25 PM IST
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