Army Corps of Engineers

Trinity Safety Group is working with multiple contractors throughout the United States on Army Corps of Engineers (ACOE) projects. Trinity Safety Group continues to build a strong relationship with the contractors and the ACOE by providing comprehensive support within the ACOE safety program while maintaining a personal approach. Listed below are past and current Army Corps of Engineer projects in which Trinity Safety Group has been or is currently involved.

McCook Reservoir CUP: Soil Nail Wall Project

The Army Corps of Engineers McCook Reservoir CUP: Soil Nail Wall Project was the construction of a 14,250 square foot permanent soil nail wall that consisted of 2:1 slopes on either end of the soil nail wall. This created a wall length of 520 feet. Activities on the project included major excavations, drilling of soil nail holes into the ground, placing and grouting of encapsulated nail bar tendons and application of shotcrete reinforcement.

Trinity Safety Group provided full time risk management for this project and implemented the Accident Hazard Analysis and Accident Prevention Plan according to the Army Corps specifications. Representatives also assisted in the preplanning and implementation of all high-risk activities to ensure that personnel were provided with a safe working environment.

McCook Reservoir Project

The McCook Reservoir Project was located at the Metropolitan Water Reclamation District of Greater Chicago. Trinity Safety Group managed all aspects of safety related to the construction of the 7,500 lineal foot cut-off wall. This wall was constructed through overburden with a key into the bedrock. This $15 million project worked over 100,000 man hours without a lost time incident.

McCook Grout Curtain Wall Installation

The McCook Grout Curtain Wall Installation consisted of a 2,700 linear feet of double row grout curtain around the perimeter for the reservoir installed to depths of 325 feet in bedrock with 60-75 feet of overburden. The total drilled footage was in excess of 135,000 linear feet in solid rock.

Canton Dam

The Canton Dam project consists of the installation and construction of a new, auxiliary spillway. The work requires the excavation of 1.6 million cubic yards of material to create the new channel. The spillway excavation will be supported by a diaphragm walls with permanent anchors. Canton Lake is used for flood control, generating power, navigation, irrigation and supplying potable water.

Howard Hanson Dam

Trinity Safety Group is providing total site safety management and design for the installation of a 450-foot-long double-lined grout curtain into the dam. The grout curtain excavation depth is 170 feet and the grout curtain will extend fifteen feet in to bedrock. The curtain will be comprised of high and low mobility, balanced and stable grout.