The Black Canyon Road Bridge was presented with the 2011 Outstanding Project of the Year Award, by the American Society of Civil Engineers. Black Canyon Road is an Indian Reservation Road that passes through the Cleveland National Forest. The bridge spans a steep canyon over the Santa Ysabel Creek and provides an aesthetically pleasing structure … Continue reading Black Canyon Road Bridge →

Phase 1 of the Contra Costa County Vasco Road Safety Improvements Project was recently awarded the Transportation Project of the Year for 2012 by Northern California American Public Works Association. Vasco Road is a major rural arterial extending from the SR 4 Bypass south of Brentwood, Contra Costa County, to Interstate 580 in Livermore, Alameda … Continue reading VASCO ROAD SAFETY IMPROVEMENTS PROJECT →

The City of Manteca Wastewater Quality Control Facility (WQCF) is a 10 million gallon per day (mgd) activated sludge biofilter plant that discharges tertiary effluent to the San Joaquin River. However, satisfying regulatory requirements with chlorination practices had proven difficult and resulted in a number of fines. The chemical-free solution was to upgrade the treatment … Continue reading 2010: Manteca Wastewater Quality Control Facility →

The largest span of utility undergrounding in the history of San Diego, the 30th Street 20a Transmission Undergrounding moved 3.5 miles (20,304 feet) of overhead transmission line underground. The project, which provides a safer, more reliable energy source for the people of San Diego, received a 2009 Outstanding Civil Energy Project Award from the American … Continue reading 2010: 30th Street 20a Transmission Undergrounding →

In response to record growth rates, the Roseville Water Treatment Plant needed to expand from 60- to 100-million gallons per day (mgd) before demand exceeded supply. By employing sustainability measures and being sensitive to the surrounding residential community, the construction team nearly doubled the plant capacity while reducing natural resource consumption, saving time, reducing material … Continue reading 2009: Roseville Water Treatment Plant Expansion, Phase 3 →

The 30th Street 20a Transmission Undergrounding project provided a safer, more reliable energy source for the people of San Diego. The largest span of utility undergrounding in the history of San Diego, the project entailed converting a 20,304 foot-long 138kV electric transmission line from overhead to underground. The project also represents the highest voltage transmission … Continue reading 2009: 30th Street 20a Transmission Undergrounding →

Replacing an existing freeway overcrossing, one of the oldest interchanges on SR 99, while accommodating local and freeway traffic throughout construction is no small feat. Yet that’s just what Nolte did. By widening the two-lane structure to accommodate eight lanes, the new Grant Line Road interchange yielded improved traffic circulation and motorist safety on the … Continue reading 2009: Grant Line Road Interchange at State Route 99 →

In the historic beach town of Encinitas, widening Leucadia Boulevard has made a huge difference to people commuting through the area and those trying to reach the ocean. Designed by Nolte, the roadway widening accommodates new bike lanes and sidewalks and incorporates roundabouts to slow traffic, making it much less dangerous for people trying to … Continue reading 2009: Leucadia Blvd Pedestrian and Bicycle Improvements →