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Archive for the ‘Local’ Category

ACEC Engineering Excellence 2017: 90-Inch Water Main Hot Tap & Line Plug in Des Plaines, IL

Monday, July 17th, 2017
GRAEF - TDW Services, Inc., 90-Inch Water Main Hot Tap & Line Plug

A colossal 90-inch water transmission main was completely relocated to accommodate the rebuilding of the Jane Addams Memorial Tollway, while incredibly maintaining water service to 500,000 residents. The project team designed, tested, and constructed a unique thrust restraining system to absorb the massive forces generated by the risky hot tap procedure—where two pipes are connected without emptying pipe contents. The system safely absorbed the high pressure force when water was diverted into the bypass section. It allowed a critical water supply to be preserved, the construction schedule to be reduced by a year, and renovation of the Tollway to proceed.

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ACEC Engineering Excellence 2017: 130th & Torrence Grade Separation in Chicago, IL

Tuesday, July 11th, 2017
Alfred Benesch & Company, 130th & Torrence Grade Seperation

One of Chicago’s most noted traffic bottlenecks has been transformed into a smooth-flowing multi-tiered interchange that is also helping spur development of the nearby Chicago Manufacturing Campus. Each day, more than 38,000 vehicles, 50 freight trains and 41 passenger trains used the intersection, creating a crowded logjam. Further complicating the project was its close proximity to an automotive assembly plant, a railroad mixing yard, a residential area, and protected marsh area. The project realigned roadways and added six new bridges, including a 4.75-million-pound steel railroad truss bridge assembled in a nearby staging area then transported in just four hours to its permanent location.

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California: South Coast Bike Share Feasibility Report

Friday, July 7th, 2017
Hub A: UCSB, Isla Vista (Santa Barbara County), and Goleta

This report is intended to be a starting point for further discussion and outreach among the public, stakeholders, local businesses, and local agencies to evaluate the efficacy of a local bikeshare system, ensure that the system is planned correctly and that all concerns are addressed adequately. The South Coast Bike Share Initiative conducted this feasibility study process over the course of 2016, thanks to generous support by the Santa Barbara Bicycle Coalition, Santa Barbara City College, and the University of California – Santa Barbara.

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Saratoga Springs, UT: Preparing Redwood Road for the Future

Wednesday, July 5th, 2017
Saratoga Springs, UT: Preparing Redwood Road for the Future

The Utah Department of Transportation (UDOT) will improve Redwood Road south of Pioneer Crossing in Saratoga Springs over the next two years. The improvements, which are scheduled to begin this summer, are designed to reduce congestion and extend the life of the roadway.

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ACEC Engineering Excellence 2017: Newtown Creek Waste Water Treatment Plant Upgrade in Brooklyn, NY

Monday, July 3rd, 2017
Michael Baker Int’l; CB&I; Gannett Fleming (Joint Venture), Newtown Creek Waste Water Treatment Plant Upgrade

Innovative upgrades helped double this waste water plant’s wet-weather processing capacity to 720 million gallons per day, while increasing sediment and grit removal to 92 percent and reducing odor. To reduce discharges into the East River, the project team utilized advanced 4D modeling technology to deliver four new treatment components— totaling $1.3 billion—and inspected the interiors of eight, 140-foot-high egg-shaped anaerobic digesters that sit atop the plant. They also implemented a biogas program that is expected to heat nearly 5,200 homes and reduce annual greenhouse gas emissions by more than 90,000 metric tons by the end of this year.

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Washington State DOT: Bike-Friendly Washington

Friday, June 30th, 2017
Washington State DOT: Bike-Friendly Washington

Washington state offers great biking! Whether you like scenic or sensible—or a bit of both—when you bike the Evergreen State you can experience dramatic mountain vistas, serene lakes and islands, rolling hills, rushing rivers, friendly small towns and exciting big cities, beautiful trails and protected bike lanes, with transit and ferries to extend your range. Washington State Dept. of Transportation and local/regional government partners are working together to create a network of connections that let you choose healthy, active transportation. Whether you ride for utility, health, travel, or recreation, we invite you to pedal Washington.

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ACEC Engineering Excellence 2017: Harry Tracy Water Treatment Plant in San Bruno, CA

Tuesday, June 27th, 2017
Kennedy Jenks Consultants: Harry Tracy Water Treatment Plant

Combining advanced civil and structural engineering innovations, the project team designed an 11-million-gallon reservoir that will help a nearby water treatment plant quickly restore operations in the wake of a major earthquake. The massive above-ground, concrete reservoir includes a “tank within a tank” design, with an outer 3-million-gallon chlorine contact raceway for water treatment surrounding

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Tallulah Falls, GA: Abandoned Piers of the Tallulah Falls Bridge

Friday, June 23rd, 2017
Tallulah Falls, GA: Abandoned Piers of the Tallulah Falls Bridge

The Tallulah Falls Railway crossed Tallulah Falls Lake on a 585-foot bridge built in 1913 as the lake was filling. The deck-style plate girder bridge replaced an earlier wooden truss structure. When the railroad was abandoned in the early 1960s, the steel spans were removed and recycled. The concrete piers were left standing because they had no salvage value and demolition would have been costly.

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EARTHCAM Timelapse of Bayonne Bridge – Staten Island to New Jersey

Wednesday, June 21st, 2017
EARTHCAM Timelapse of Bayonne Bridge – Staten Island to New Jersey

Progress on the Port Authority’s Bayonne Bridge “Raise the Roadway” project as of May 2017. Watch the iconic bridge gain a new roadway deck, 215 feet above mean high water – and watch as workers begin to remove the lower deck. The original roadway’s removal will allow navigational clearance for the new generation of larger, more efficient and environmentally beneficial container vessels.

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ACEC Engineering Excellence 2017: Sellwood Bridge Replacement in Portland, OR

Tuesday, June 20th, 2017
Sellwood Bridge Replacement in Portland, OR

A picturesque, three-arch bridge replaces a deteriorating 1925-era structure that was threatened by an encroaching hillside. The project team incorporated advanced seismic resilient bridge components and innovative landslide mitigation systems to stabilize the hillside. They also trimmed a year off the construction schedule by shifting the original steel deck truss to one side using hydraulic jacks, allowing the bridge to remain in service during construction.

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