Locale : Global (English)
Create document Page
Review document
Page Added

october 20, 2016

Regional Connector tunnel boring machine is named and lowered in Los Angeles

The tunnel boring machine (TBM) that will create the twin tunnels for the ambitious Regional Connector project was named and lowered in a ceremony on October 19 in the Little Tokyo neighborhood of Los Angeles.

The TBM, named Angeli by Windsor McInerny, the winner of a student naming contest, is 450 feet long, 21.5 feet in diameter, and weighs about 1,000 tons. It will advance about 60 feet per day once digging begins and will take 16 to 18 months to complete the 1.1-mile tunnels.

Mott MacDonald is the lead designer for the $927 million project, which will connect the Los Angeles County Metro Rail’s Gold Line to the Blue and Expo lines, enabling one-seat travel by light rail from Pasadena through downtown Los Angeles to Long Beach, or from Santa Monica to East Los Angeles. Such a trip now requires passengers to transfer downtown onto or off of the heavy-rail Red or Purple lines. Frank Frandina serves as Project Design Manager.

icon-arrow-down-sml icon-arrow-left-lrg icon-arrow-left-sml icon-arrow-right-lrg icon-arrow-right-sml icon-arrow-up-sml icon-champions icon-close icon-download icon-education icon-email icon-grid-view icon-language icon-link-to icon-list-view icon-location icon-login-register icon-minus icon-more icon-phone icon-plus icon-recently-viewed icon-search icon hash key-facts-corner-sash quote-underline social-icon-facebook social-icon-googleplus social-icon-linkedin social-icon-twitter social-share-icon-facebook social-share-icon-facebook social-share-icon-googleplus social-share-icon-googleplus social-share-icon-instagram social-share-icon-instagram social-share-icon-linkedin social-share-icon-linkedin social-share-icon-twitter social-share-icon-twitter social-share-icon-youtube social-share-icon-youtube sina-weibo MM-Shape01-Quote-Views MM-Shape03-Quote-Locations MM-Shape05-Quote-Projects MM-Shape12-Quote-Sectors MM-Shape13-Quote-Expertise MM-Shape14-Quote-About-Us MM-Shape14-Quote-Careers checkmark icon-expand-view icon-apply-now menu sphere icon-cookies icon-legal icon-registered-companies target rotate-screen video-replay-flat video-replay audio-mute audio-play