Many of the Mississippi River's 100-plus crossings are reaching the end of their design life and planners all along the river are investigating rehabilitation and replacements.
" 'This is a period when bridge construction is flourishing up and down the river,' says Steve Hague, bridge engineer with HNTB, Kansas City, and a veteran of some 40 Mississippi River projects. 'A lot of the bridges were built in the 1920s and '30s, so it's time to look at replacements.'
.. Building within and over the river banks presents challenges, particularly in shifting soils. 'You have an old historic river meandering around; it has deposited materials over thousands of years,' says Alec Smith, vice president with Haley & Aldrich, Boston, the geotechnical engineer for a proposed Great River Bridge that would stretch five miles between Cleveland, Miss., and McGehee, Ark."
Thanks to Constructionmail Newsletter
FULL STORY: From St. Paul to Louisiana, Plans Abound For Mississippi Milestones
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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