Transit agencies and railroad companies realize the importance of infrastructure, as their train cars roll over bridges and through tunnels every day. This article looks at advances in bridge construction begin driven by these private industries.
Howard Ande of Progressive Railroading says that there are still some 70-year old timber trestles out there that need to be replaced with concrete:
"Emerging technology could play a role in future bridge projects, such as a hybrid composite beam (HCB), [Norfolk Southern Chief Engineer of Bridges and Structures Jim Carter] says. Comprising a carbon-fiber reinforced concrete arch encased with fiberglass, HCB is undergoing tests at the Transportation Technology Center Inc.'s Facility for Accelerated Service Testing (FAST) track in Pueblo, Colo."
Ande also talks with Union Pacific and the Alaska Railroad Corp. about their bridge-building initiatives.
FULL STORY: Railroads aim to replace or revamp aging bridges
Depopulation Patterns Get Weird
A recent ranking of “declining” cities heavily features some of the most expensive cities in the country — including New York City and a half-dozen in the San Francisco Bay Area.
California Exodus: Population Drops Below 39 Million
Never mind the 40 million that demographers predicted the Golden State would reach by 2018. The state's population dipped below 39 million to 38.965 million last July, according to Census data released in March, the lowest since 2015.
Chicago to Turn High-Rise Offices into Housing
Four commercial buildings in the Chicago Loop have been approved for redevelopment into housing in a bid to revitalize the city’s downtown post-pandemic.
New Park Opens in the Santa Clarita Valley
The City of Santa Clarita just celebrated the grand opening of its 38th park, the 10.5-acre Skyline Ranch Park.
U.S. Supreme Court: California's Impact Fees May Violate Takings Clause
A California property owner took El Dorado County to state court after paying a traffic impact fee he felt was exorbitant. He lost in trial court, appellate court, and the California Supreme Court denied review. Then the U.S. Supreme Court acted.
How Urban Form Impacts Housing Affordability
The way we design cities affects housing costs differently than you might think.
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