DDIs are particularly effective at locations, like the one in Alabama, that have:
High volumes of left-turn traffic on and off of freeway ramps
Left-turn related safety challenges
Moderate and unbalanced crossroad traffic through the interchange
A need for additional capacity, without widening
According to the Alabama Department of Transportation (ALDOT), "DDIs improve safety by reducing vehicle-to-vehicle conflict points from 26 — as in a conventional diamond interchange — to 14 points.
The Nebraska Department of Transportation (NDOT) announced last month that Hawkins Construction of Omaha has been awarded the contract to construct the Lincoln South Beltway. Once complete, the South Beltway will improve safety and regional mobility by connecting U.S.
The Missouri Highways and Transportation Commission awarded KCI Construction Company a $33 million contract for the rehabilitation of the eastbound Interstate 70 Blanchette Missouri River Bridge between St. Charles and St. Louis counties.
The commission awarded the contract at its monthly meeting in Jefferson City, Mo., on Jan.
The Gordie Howe International Bridge team announced that following several months of consultation with the community, an aesthetic design has been selected for the five pedestrian bridges to be constructed as part of the Michigan Interchange work being completed for the Gordie Howe International Bridge project.
In Chicago, Ill., work continues on the final phase of a project that will create a new road between the Loop and Chinatown. Section 3 involves construction of a segment of Wells Street extending from Roosevelt Road to 16th Street, resulting in a new north-south through-street between Clark Street and the South Branch of the Chicago River.
The Indiana Department of Transportation has awarded Walsh Construction Company II LLC a $164.8 million contract to transform 6 mi. of State Road 37 into Interstate 69. Walsh's proposal was the lowest price among four responsive bids and $7.8 million below estimate.
A project in Frederick County, Md., that began in September will enhance safety and add capacity on a segment of MD 180 (Jefferson Pike).
The $17 million project involves more than half a mile at Solarex Court and Swallowtail Drive and is designed to help alleviate traffic congestion.
Construction is scheduled to begin Oct. 14, to rehabilitate the bridge carrying Park Road over U.S. 1 (Kennett Oxford Bypass) in West Nottingham Township, Chester County, the Pennsylvania Department of Transportation (PennDOT) announced.
Due to the nature of the repairs, Park Road Bridge will be closed and detoured between Kimble Road and Old Baltimore Pike through the completion of the project scheduled for mid-November.
The Vermont Agency of Transportation (VTrans), in collaboration with the town of Middlebury, is undertaking a project to replace two nearly 100-year-old rail bridges in the center of Middlebury with a tunnel.
Kubricky Construction, Wilton, N.Y., is the lead contractor on the job, which began in 2017, continued through the 2018 and 2019 construction seasons, and will be completed in 2021 with much of the work set to take place in a 10-week period in the summer of 2020.
The Baker-Polito Administration filed a $74.2 million supplemental budget bill to address ongoing critical funding needs, including $18 million to support MBTA infrastructure and safety investments, $10 million for school improvements and $4.2 million for investments in clean drinking water.
The Baker-Polito Administration announced that $20 million in additional funding will be provided to cities and towns in Fiscal Year 2020 (FY20) for road construction and transportation improvement projects. This funding was included in a supplemental budget recently signed by Gov.