Category Archives: Highways

The Paintersville Bridge on State Route 160 for remains closed for bridge work through Thursday, October 1. Work began on August 3 as part of The Moveable Delta Bridges Project to refurbish and replace parts on the Paintersville, Steamboat Slough, … Continue reading →

This is a new metric developed by the Iteris Transportation Analytics team to help you gauge how close your county is to returning to more normal traffic conditions.

The California Department of Transportation (Caltrans) is planning an additional, 44- hour, full highway closure of eastbound and westbound State Route 12 (SR12) between SR-160 and Interstate 5 (I-5) for repair work on the Mokelumne River Bridge located at the … Continue reading →

SR239 is a legislatively adopted, but unconstructed, route in the California state highway system. First identified in 1959, the legislative language describes SR239 as a potential roadway linking SR4 in Brentwood to Interstate 205 (I-205) or I-580 west of Tracy … Continue reading →

The State Route 84 (SR-84) Real McCoy Ferry will continue to be out of service as crews continue to make repairs on the ferry after an unexpected mechanical failure occurred in April 2020. The ferry is anticipated to return to … Continue reading →

Flooding is again bedeviling Highway 37 in the North Bay, but a plan to improve the stretch of roadway is in the works. A memorandum of understanding among several agencies is being worked on with a goal of providing relief for Highway … Continue reading →

The contract has been awarded, construction should start this year and be completed spring of 2022. The 680/4 Phase 3 project will widen State Route 4 in the median to provide a third lane in each direction from Morello Avenue … Continue reading →

CALIFORNIA KEY TRANSPORTATION FACTS THE HIDDEN COSTS OF DEFICIENT ROADS Driving on California roads that are deteriorated, congested, and that lack some desirable safety features costs California drivers a total of $61 billion each year. TRIP has calculated the cost … Continue reading →

A recent headline announced that the California Transportation Commission approved $34 million in funding for upgrades to the Interstate Highway 680/state Highway 4 interchange. Concord Assemblymen Tim Grayson was active in securing this funding. Because of the size of the … Continue reading →

Experienced Bay Area drivers know it’s a good idea to build in some extra time as a cushion against heavier-than-normal traffic or other unforeseen events. This cushion is known as a buffer time index, or BTI. Transportation planners represent BTI … Continue reading →

The Contra Costa Transportation Authority (CCTA) and Alta Vista Solutions showcased two emerging technologies on a construction project aimed to improve commutes on Highway 4. Engineers are piloting drones equipped with light detection and ranging (LiDAR) lasers–a surveying tool that … Continue reading →

The Contra Costa Transportation Authority (CCTA) announces today the official launch of Story Through Images, a web feature devoted to celebrating the recently-completed Highway 4  Widening Project and ongoing BART construction project, a $1.3 billion investment in infrastructure in Eastern … Continue reading →