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Straightedge: the BergerABAM blog

New, Improved, and Worth the Wait

The residents in the area were patient but greatful to cut down their commute times and use the bridge.

In December 2007, a devastating flood washed out the original Leudinghaus Bridge, which was built in 1922 and crossed the Chehalis River in rural Lewis County, Washington. Since then, residents of the unincorporated neighboring communities of Doty, Dryad, and Meskill, approximately 15 miles west of the city of Chehalis, have been anticipating its replacement. On 11 February 2016, their wish was realized with the grand opening of a new and improved Leudinghaus Bridge.

National Wildlife Refuge to Get a New Outlook

A view of the Hanalei Valley.

Consider adding another must-see to your next Hawaiian vacation itinerary. Surrounded by lush hilltops and waterfalls, the 917-acre Hanalei National Wildlife Refuge (NWR) blankets the Hanalei River Valley and scenic north shore region of Kauai.

Established in 1972 under the Endangered Species Act, Hanalei is the oldest of Kauai’s three national wildlife refuges and furnishes critical nesting and feeding habitat to endangered resident and migratory water birds. Managed by the U.S. Fish and Wildlife Service (USFWS), the NWR ranges from 20 to 40 feet above sea level. Water from the Hanalei River irrigates approximately 75 acres of the wetland areas, 180 acres of taro patches, and 90 acres of wet pasture before returning to the river.

In with the New and Out with the Old

The bubble curtain is part of the blast attenuation system that creates a barrier of bubbles to lessen the shock of implosion, helping protect marine wildlife.

When the eastern span of the San Francisco-Oakland Bay Bridge began showing wear, tear, and ultimately unsafe conditions, the California Department of Transportation (Caltrans) decided it was time for a replacement. Dubbed the Old Bay Bridge by Caltrans, its capacity was also in question, and it was in dire need of seismic updates. While the new bridge was constructed, the Old Bay Bridge awaited its fate. The day of 14 November 2015 marked the beginning of the end as Pier E3, the largest support pier of the bridge’s east span at 80- by 140 feet, was demolished—with a bang.

Higher, Better Wind Turbine Research

A portion of the tower has been built and is being tested. (Image courtesy of Sri Sritharan.)

With the second largest installed capacity, the United States is ranked first in the world in annual wind power production; the U.S. Department of Energy forecasts wind power supplying 35 percent of the nation’s energy by 2050. However, at this time, the United States' East and West coasts lag behind the Midwest in wind energy production, with many Southeast states currently having no wind energy potential.

Pleasant Valley Pedestrian Bridge Wins Project of the Year Award

Award-winning steel pedestrian bridge.

The Pleasant Valley Pedestrian Bridge connects Washington State University’s Vancouver campus with Pleasant Valley Community Park. BergerABAM was hired by Fabrication Products to perform engineering calculations on the 180-foot-long weathering steel pedestrian bridge.

BergerABAM was the engineer-of-record for the bridge itself and although the team was not responsible for the abutment or pier design, they nevertheless had to be very mindful and creative to detail the connections to allow for easy assembly in the field—within a 1/4-inch precision to fit on the abutments and piers. This 180-foot-long, 8-foot-wide, three-span warren truss bridge was shipped in three segments, assembled on site, lifted in one segment, and lowered into place.

Camp Parsons Dining Hall – Managing Design and Construction on a Tight Budget

The new dining hall was completed in nine months.

Founded in 1919 on Hood Canal near Brinnon, Washington, Camp Parsons has hosted generations of Boy Scouts and scouting activities for 94 years. As scouting and the organization has grown, the old dining facility that was built in 1937 could no longer accommodate the needs of an ever-growing population of Scouts. At 4,600 square feet, the old dining hall could only seat 350 people at a time. In 2015, the Chief Seattle Council of the Boy Scouts of America decided to demolish the old building and construct a larger, more modern facility.

Happy Holidays

Preserving a Piece of Los Angeles History

The new Los Angeles State Historic Park transforms an industrial brownfield into a world-class green space that provides a place to play, unwind, and explore the city’s rich history.

The Southern Pacific Railroad River Station opened in 1876 and included a wooden depot building, roundhouse, turntable, repair shops, and a hotel. River Station was considered the Ellis Island of Los Angeles because it was the major gateway to the west, allowing goods and settlers to flow between Los Angeles and San Francisco, as well as the rest of the nation and world during the land boom of the 1880s.

Envision a Sustainable Project…with an Envision Sustainability Professional

Public agencies across the country are using and requesting Envision in their request for proposals and qualifications and as funding criteria. Having Envision Sustainability Professionals (ENV SP) on staff can help meet these requirements, as well as help define a project’s influence on the environmental, social, and economic impacts throughout the life of a project.

Winning for Sustainability: Pendleton Avenue Widening and Multiway Boulevard Project

Multiway boulevards help to balance the increasing demands of roadways, parking, pedestrian amenities, bicycle access, business/retail access, and the environment.

Inspired by multiway boulevards from Paris, Italy, to California, the Pendleton Avenue Widening and Multiway Boulevard project is one of only two multiway boulevards that currently exist in the state of Washington. The project is over 7,100 linear feet of roadway improvements and is center stage for a beautifully landscaped corridor reminiscent of European grand boulevards of past and present.

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