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March 2021 Print Issue

DIPRA testing Last Word – Research Tests Show Consistently Strong Energy Efficiency Flows in First U.S. CML Iron Pipe
L. Gregg Horn
April 6, 2021
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Features Lester Bradshaw
Publisher’s Message – Lester Bradshaw Jr. is Trenchless Technology’s 2021 Person of the Year
April 6, 2021
Manhole Rehab Pennsylvania manhole
Severe Infiltration Stopped Using Mechanical Internal Joint Seal
April 5, 2021
Storm Water/Culverts Newport lining
California Contractor Takes Care of Failing CMP Storm Drain in Lush Community
March 31, 2021
Directional Drilling A well-known oil company in Argentina transports products from one of its refineries located in the Andes foothills to its principal markets in Buenos Aires. A pipeline stretching some 1,700 km transports the company’s products to their destination. When routine inspection revealed compromised technical integrity of a pipeline section, the decision was made to replace the affected section.
Record-breaking HDD Crossing in Argentina
March 30, 2021
Condition Assessment SL-RAT Eagan
Improving Cleaning Efficiency at City of Eagan

The City of Eagan is located just south of Minneapolis and Saint Paul along the southern bank of the Minnesota River. In...

March 26, 2021
Person of the Year Lester Bradshaw
2021 Trenchless Technology Person of the Year Lester Bradshaw Jr.

Lester Bradshaw Jr. took his first job underground when he was 14 years old. Fifty-two years later, he still loves to pu...

March 22, 2021
Directional Drilling direct pipe method pipe thruster
Installation Force Evaluation of a Direct Pipe Shore Approach

In the last several years, the Direct Pipe method of trenchless installation has moved from an emerging technology to a ...

March 17, 2021
Manhole Rehab manhole rehab in California
Saving Infrastructure…One Manhole at a Time

The City of Richmond in western Contra Costa County, California, is located on the northeastern shore of San Francisco B...

March 16, 2021