Highway projects of historic proportions - From a gateway to the nation's capital to the "Crossroads of America," CH2M HILL combines technical excellence with environmental sensitivity and community consciousness to deliver high-value transportation solutions.

From the Worst Section of I-45 to the Best - The subsurface conditions along Interstate 45 near Corsicana in north central Texas are abysmal: the extremely weak high plasticity clays common to the area lost their strength after a rainfall.

Small changes Mean Large Cost Savings - Soil conditions along a 100-mile east-west swath of central Texas can be as varied as the state of Texas itself: ranging from solid limestone to highly expansive clays.

Making Grand Rapids' Highways Safer - US-131, through downtown Grand Rapids, MI, is the fourth busiest freeway in the state, carrying 120,000 vehicles per day.

Danger Reduction

Sink Holes Couldn't Sink This Project - Over the past decade, the 5-mile stretch of Pennsylvania Route 202 between Tredyffrin and Upper Merion, PA, had become more and more congested.

Strong Alliance, Strong Pavement - The Asphalt Pavement Alliance (APA) is a coalition, formed in 2000, of the Asphalt Institute, the National Asphalt Pavement Association, and the State Asphalt Pavement Associations.

T-REX Sinks Its Teeth into Design-Build - T-REX is a pioneering, $1.7-billion design-build mega project, combining highway and light rail transit, constructed and financed under one plan.

Construction Flies Near Newark - Union Paving & Construction Co., Inc., of Irvington, NJ, chose EFCO formwork for the Route 21 reinforced concrete viaduct replacement project near New Jersey's congested Newark Airport.