Repair Portal

RepairStructuralBlaine Hill Viaduct Bridge? Route 40 Ohio Department of Transportation 248-10

Jason Pinney

Located in Belmont County, OH, the Blaine Hill Viaduct Bridge was constructed in 1933. It is on U.S. Route 40 between St. Clairsville and Bridgeport, OH

RepairStructuralInternationalPortage Bridge 2010 Structure Rehabilitation

Kevin Robertson

The Portage Bridge is a busy six-lane interprovincial road crossing the Ottawa River, joining downtown Ottawa, ON, Canada, to Gatineau, QC, Canada.

RepairUndergroundStructuralODOT U.S. Highway 26 Dennis L. Edwards Tunnel Project

Larry Totten and Reg Ryan

SafetyRepairUndergroundStructuralThe Danger of Fallouts in Overhead Shooting

William Clements

The volume of shotcrete required to cover an area of only 3 ft2 (0.3 m2) with a 4 in. (100 mm) thickness would typically weigh approximately 140 lb (64 kg), a weight that?if dropped from a height of 10 ft (3 m)?would seriously endanger the

RepairTop Ten Sustainability Benefits of Shotcrete

Top 10 Sustainability #5

Top Ten Sustainability Benefits of Shotcrete

RepairUndergroundStructuralIncline Tunnel—S&S Quarries, Inc

Edwin Brady

The Incline Tunnel, S&S Quarries, Inc., is the access to an underground rock mine in Knoxville, IA, owned by Bruening Rock Products.

RepairArchitecturalStructuralRankin Bridge

Dennis Bittner

The Rankin Bridge is a cantilever bridge spanning the Monongahela River in Pittsburgh, PA.

RepairStructuralDifferences and Similarities of Shotcrete Specifications

Cathy Burkert

In my years of working as a shotcrete contractor in the state of Illinois, the Department of Transportation (DOT) has revised the shotcrete specification numerous times

RepairUndergroundStructuralChanging Methods of Sinking Vertical Shafts in Mining

Natasha Odendaal

The way the mining industry and contractors work with vertical shafts is changing through the introduction of technologies such as Murray & Roberts (M&R) Cementation?s advanced shaft-lining technology.

SafetyRepairUndergroundThird-Rail Safety

Ray Schallom III

There are a few things you should be aware of when working around the third rail of an electric-powered passenger train.