Cliff-Hanger
To create an arch bridge over a river gorge in Oregon without disturbing the canyon walls or floor below, engineers combined a segmental construction scheme with a temporary cable-stay...

Shotcrete Lining Design Concepts for New and Rehabilitated Tunnels

Making the Most of HPC
Developing high-performance concrete (HPC) was only the first step toward bringing a material with improved durability, strength, constructability, and mechanical properties to the bridge...

A Grand New Bridge
Approximately 65 km south of Seoul, rising above the Asan Bay, the Seohae Grand Bridge now stands as the longest bridge in South Korea. The 9.4 km long cable-stayed bridge, which runs...

Returning to the Source
One hundred years ago, Las Vegas was a dry, dusty dot on the map with a population of only 100. The city grew up to become perhaps the gambling capital of the world, and more recently...

Phase II Evaluation Findings
The Segmental Concrete Channel Bridge System
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF Innovation Center. This report represents the second component of the...

I-15 Highway Reconstruction - Design-Build: Risk/Reward for Contractor and Challenges for Geotechnical Engineer

A Sound Assembly
In downtown Salt Lake City, the new 1.5 million sq ft (140 000 m²) conference center for the Church of Jesus Christ of Latter-Day Saints (LDS) faced design issues that include height restrictions,...

Safeguarding Bixby Bridge
The two-lane arch bridge over Bixby Creek—in Big Sur, California—reflects the Art Deco style popular in the early 1930s, when the crossing was built. Its slender deck and arch ribs appear...

Deep Foundations In the Future (Available in Geo-Environmental Special Issue only)
The design and construction of deep foundations has gone from an art form to a scientifically based engineering practice. Research in this field has improved over the past century and...

Ethics: A Design Responsibility
The design/build method of project delivery, because it largely removes the client from the quality control and assurance process, can lend itself to unethical behavior on the part of...

Return of the Master Builder
As projects become more complex and clients demand streamlined design and construction approaches, more consulting companies are attempting to add hard-dollar construction to their scope....

Sum of the Parts
As with all of the bay bridges that serve as life lines to the San Francisco peninsula, the 32-year-old San Mateo Bridge needs strengthening to withstand a maximum credible earthquake...

Above Them All
The design for what would be the next world's tallest building relies on a 1,550 ft (472 m) high concrete core that will give occupants of the top floors of the building unimpeded...

Protecting Your Work: Balancing the Competing Interests of Ownership
Your firm has invested days, months—perhaps even years—in its latest project. Your staff have poured their thoughts, ideas, and insights into the creation of a bridge, building, overpass,...

Moment Resisting Steel Frames—Background to Present Problems

Evaluation Findings of the Mirolux Plus 30 Pavement Marking Retroreflectometer
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report presents the results of a detailed evaluation...

Evaluation Findings of the MX 30 Pavement Marking Retroreflectometer
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report presents the results of a detailed evaluation...

Evaluation Findings of the LTL 2000 Pavement Marking Retroreflectometer
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report presents the results of a detailed evaluation...

Evaluation Findings of the Laserlux Mobile Pavement Marking Retroreflectometer
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF service center. This report presents the results of a detailed evaluation...

 

 

 

 

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