Manholes

Precast circular vertical structures can be used for stormwater management or best-management-practice structures. Circular manholes and vertical structures can also be provided with precast invert channels.

Applications

Changes in direction of pipe
Changes in pipe shape
Changes in pipe size
Custom openings
Custom tops
Flexible watertight pipe-to-manhole connections
Junctions for multiple pipes
Observation points
Overflow structures for ponds
Access to the system for maintenance
Protective linings

Specifications

AASHTO M198 — Joints for Circular Concrete Sewer and Culvert Pipe Using Flexible Watertight Gaskets
ASTM C1244 — Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test
ASTM C443 — Joints for Circular Concrete Sewer and Culvert Pipe Using Rubber Gaskets
ASTM C478 / AASHTO M199 — Precast Reinforced Concrete Manhole Sections
ASTM C923 — Resilient Connectors Between Reinforced Concrete Manhole Structures and Pipes

Joints

Confined O-ring rubber gasket
Preformed mastic or butyl gasket
Single offset with profile rubber gasket

Vaults

Specifications

ASTM C858 — Underground Precast Concrete Utility Structures
ASTM C913 — Standard Specification for Precast Concrete Water and Wastewater Structures
DOT, municipal, utility or agency specifications

Joints

Butt joints with mastic or performed plastic gaskets
Tongue and groove with preformed mastic or plastic gaskets

Precast Junction Boxes

Used to provide service access and to achieve changes in pipe size, type, or direction. They are also useful for changes in elevation or merging two or more upstream pipes into a single larger downstream pipe.

Handholes
Switchgear vaults
Telecom and transformer pads
Tunnel and trench sections
Rebuilt manhole replacements

Headwall and Wingwall Systems

Usually connected structurally to the adjacent conduit.

Applications

Where appearance of the pipe end is important
When flow must be channeled into or out of a conduit
Where the conduit enters or exits finished grade
When the earth embankment surrounding the pipe must be retained
When the exposed pipe ends pose a danger to traffic

Specifications

Various DOTs

In addition to our standard line of products, custom solutions, designed in-house by our experienced engineering team, are also available. Whether a standard or custom solution, our products can be manufactured with all pre-installed accessories necessary, reducing construction time and cost.

Electrical

CXT products for the power industry are durable, secure, and flexible and can be customized. Our products will protect valuable electrical equipment such as cables and transformers and are available in a variety of configurations. CXT products provide the ideal alternative to running electrical cable above ground.

Communications

Our durable line of products will protect sensitive connections, data, and equipment for the communications industry. Highly customizable, our products can be designed to meet the needs of the industry. Our products are manufactured in a controlled facility so all communications projects will benefit from ease of installation and long-lasting service.