{"id":96850,"date":"2025-11-14T14:47:41","date_gmt":"2025-11-14T13:47:41","guid":{"rendered":"https:\/\/www.maccaferri.com\/us\/success-stories\/i-95-telegraph-road-interchange\/"},"modified":"2026-01-30T14:42:43","modified_gmt":"2026-01-30T13:42:43","slug":"i-95-telegraph-road-interchange","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/us\/success-stories\/i-95-telegraph-road-interchange\/","title":{"rendered":"I-95 \/ TELEGRAPH ROAD INTERCHANGE"},"content":{"rendered":"
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    MacGrid\u00ae WG60 Installation Overlaps<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Rolling Out Grid – Installation<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Installation – Backfilling WG60<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>

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    Challenge<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    Each day close to 50,000 motorists pass through the Telegraph Road Interchange along the integral I-95\/495 Capital Beltway in between Virginia and Maryland. In early 2008, extensive upgrades to the interchange began as part of a multi-year project tied to the final phase of the Woodrow Wilson Bridge project. Roughly $235 million was dedicated to the interchange\u2019s improvement. These capacity-managing improvements involved the construction of a grade separated interchange, new ramps, and the construction of a bike and pedestrian trail. VDOT specifically requested high-strength geosynthetic reinforcement with an ultimate tensile strength of 38,000 lb\/ft. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    Solution<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    Roughly 14,500 sq. yd. of geogrid was used for basal reinforcement over aggregate piers and under mechanically stabilized earth (MSE) walls and slopes. The 12.8-ft.-wide rolls provided excellent coverage, minimizing material waste and maximizing project economics. The project-requested, oversized geogrid panels, which varied in length from 350 to 450 feet, were overlapped two feet and tied together to prevent movement during backfilling. Additionally, all overlaps of geosynthetic panels were \u201cshingled\u201d in the direction of the fill placement. This ensured that the pushing of fill materialdid not alter the careful overlap alignment. A sand layer was installed below all of the reinforcement and over the aggregate piers. Where needed, wick drains were installed to accelerate soil consolidation. In addition to the reinforcement materials, the Telegraph Road Interchange utilized MacTex\u00ae MX-560 geosynthetic separators (defined as \u201cSGS\u201d in the VDOT specifications). At numerous locations, a SGS layer was requested for separation between natural soils and select fill. Some geotextile was also used in combination with welded wire mesh for wrap-around wall construction. The nonwoven geotextile MacTex\u00ae MX-560 was chosen for its inertness to biological degradation and resistant to chemicals, alkalis and acids. The 100% polypropylene staple fibers are needlepunched in the manufacturing process for a dimensional stability that provides exceptional filtration, separation and protection properties.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

    Used Products<\/h2>
    \"MonoAxial<\/div>
    MonoAxial GeoGrids<\/h6>Paragrid\u2122 WAn enhanced high performance knitted geogrid characterized by a very high modulus and the lowest reduction factors. Designed for<\/span>View\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

    Roughly 14,500 sq. yd. of geogrid was used for basal reinforcement over aggregate piers and under mechanically stabilized earth (MSE) walls and slopes<\/p>\n","protected":false},"featured_media":8353,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-96850","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[96415],"applications":[89747,89747],"solutions":[89819],"sectors":[89708]},"yoast_head":"\nI-95 \/ TELEGRAPH ROAD INTERCHANGE - Maccaferri USA<\/title>\n<meta name=\"description\" content=\"Explore our Success Stories: I-95 \/ TELEGRAPH ROAD INTERCHANGE. 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