Bay Area Metropolitan Transportation Commission
Regional planning organization for roads and transit in the San Francisco Bay Area, California.
Clark County Public Works
Contains official information about the new and proposed I-215 beltway around Las Vegas, Nevada.
Jacksonville.com: In a Jam?
A discussion board for Butler Blvd construction (FL 202) in Florida.
National Traffic and Road Closure Information
Links to the respective pages in all U.S. states' department of transportation websites.
Tampa Bay Interstates Home Page
Construction information for interstates in the Tampa Bay, Florida, area, especially I-275.
The Hoover Dam Bypass Project
The official site for the proposed freeway replacing the existing US 93 over the dam in Arizona and Nevada.