Road Design

I-90 project enclosed pedestrian overpass bridge
A significant feature of the I-90 project is a $6 million enclosed pedestrian overpass bridge and accompanying entry buildings integrated within the interchange. This steel truss bridge with glass curtain walls spans the tollway and connects express bus stations on both sides of I-90, improving mobility and safety for pedestrians and transit users.
Multimodal connectivity is becoming an increasingly popular concept in addressing congestion and quality-of-life issues. While there are abundant…
August 01, 2019
Loop 202 South Mountain Freeway; courtesy of Arizona DOT
Loop 202 South Mountain Freeway; courtesy of Arizona DOT
Following the construction of 40 bridges over the span of two years, crews have placed the final girder along the Loop 202 South Mountain Freeway,…
July 08, 2019
Caltrans I-880 Safety and Operational Improvements at 23rd and 29th Avenues
Caltrans I-880 Safety and Operational Improvements at 23rd and 29th Avenues
Eight transportation projects from six western state DOTs received top honors in the regional America’s Transportation Awards competition. Some of…
June 17, 2019
The Georgia DOT (GDOT) is planning to build new toll lanes along the top end of I-285—also known as The Perimeter—in the metro Atlanta region for a $…
May 17, 2019
The Nevada DOT (NDOT) announced this week that an expanded high-occupancy vehicle (HOV) network will open to Las Vegas traffic on Monday, May 20,…
May 16, 2019
Two undergraduate students at Missouri University of Science and Technology (S&T) used a driving simulator to help a civil engineering firm…
May 15, 2019
The Utah DOT (UDOT) has approved the selection of the braided ramps option design for the interchange at Main Street (S.R. 115) and I-15 in the city…
March 06, 2019
I-696 reconstruction near Detroit will finish up by year’s end
I-696 reconstruction near Detroit will finish up by year’s end
The Michigan Department of Transportation (MDOT) has announced that it expects the I-696 corridor, a $90 million project, which has been…
November 06, 2018
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