Utility Vaults and Accessories

Utility vaults are precast concrete enclosures designed to house and protect critical underground infrastructure. From electric distribution to fiber, water, and telecom systems, these underground utility vaults ensure safe, secure, and accessible service connections. Built to withstand heavy loads, shifting soils, and constant use, precast utility vaults provide long-term reliability for projects of every scale.

Jensen Infrastructure manufactures one of the largest inventories of precast concrete utility products in the Western United States. Our vaults are universally approved by state agencies and utility companies in Arizona, California, Hawaii, Nevada, and Oregon. We work closely with engineers and contractors to provide both standard and custom precast utility vaults, helping projects move forward with speed and confidence.

Whether you need a single small enclosure or a large multi-system precast concrete vault, Jensen can deliver. With decades of engineering expertise, our solutions are designed for faster installation, proven durability, and full compliance with utility and agency specifications.

Product availability varies by location. If you need a product immediately, contact us to ensure availability.

If you need modifications to a standard product or a complete custom solution, we will work to accommodate your request in a timely manner. Please provide us with a few details about your project. Contact us now.

Subcategories

Hillside Barriers

Transformer and Equipment Pads

Utility Vaults

Vault Access Hatches

Vault Risers

Product Resources

Precast Utility Structures Expedite Relocation of Telecom Junctions

Construction Package 1 of the California High-Speed Rail covers 32 miles from Avenue 19 in Madera County to East American Avenue in Fresno County. It includes 12 grade separations, two mainline viaducts, one tunnel, realignments of existing railroad tracks, two trench sections, roadway relocations, and one major river crossing. It also encounters extensive underground utility infrastructure up for relocation. The California High-Speed Rail Authority had to relocate six

Electric Utility Structures Brochure

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Utility Structures Installation Guide

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High Speed Rail Fresno Case Study

1.6 MB

Sylmar Array Vault Case Study

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Precast Utility Structures Expedite Relocation of Telecom Junctions

Features & Benefits

Jensen’s precast concrete utility vaults combine performance, safety, and flexibility. From installation to long-term operation, these concrete utility vaults save time and money while protecting vital infrastructure.

Precast Concrete Construction

Our vaults are engineered for strength, with load ratings up to HS-20 and airport-grade capacity. Manufactured under controlled conditions, each vault delivers consistent quality and a long service life, even in challenging environments.

Standard and Custom Vault Sizes

We offer a full range of available utility vaults in standard sizes, along with custom-built designs. Options include tunnel vaults, meter and valve vaults, panel vaults, and slab boxes. Flexibility ensures your project gets exactly what it needs, from compact handholes to expansive multi-system enclosures.

Access Covers and Frames

Heavy-duty covers, frames, and hatch options provide secure entry while protecting against traffic, weather, and tampering. Our access solutions can be custom-built with spring-assisted doors, safety locks, and identification markings, and they include slip-resistant TraxPlate® covers for added worker safety. Learn more about access hatches & covers.

Risers and Grade Rings

Precast risers and grade rings adjust vaults to match finished site grade. These components simplify installation, allowing contractors to adapt quickly to varied site conditions.

Pulling Irons and Conduit Openings

Integrated pulling irons, knockouts, and conduit penetrations make cable pulling and system integration easier. Many of our pull boxes and handholes also feature preinstalled snap-in clips to eliminate the need for lock nuts and washers in the field.

Ladders and Safety Hardware

For safe interior access, vaults can be outfitted with steps, ladders, and interior racking. These features improve worker safety and streamline ongoing maintenance.

Utility Vault Accessories

Additional options such as drainage sumps, lifting anchors, inserts, and racking systems extend vault functionality and help safeguard against copper theft. For added protection, our LockLid™ system prevents pry-bar access to covers, delivering a proven defense against unauthorized entry and copper wire theft.

Applications

Jensen precast utility vaults and accessories are used across industries, including:

Utility companies and state agencies
Military bases and academic institutions
Medical facilities and solar installations
Residential communities and industrial parks
Airports, train stations, and shopping centers

No matter the application, Jensen Infrastructure has the ability and the means to accommodate your project. Read more about our projects.

Questions & Answers

What is a utility vault?

A utility vault is a precast concrete structure installed underground to protect and provide access to utilities such as power, telecom, water, or fiber systems.

What are the benefits of precast concrete vaults?

Precast vaults are factory-made for consistency, approved by utilities and state agencies, faster to install than cast-in-place structures, and built for long-term durability.

What accessories are available?

Accessories include access hatches and covers, risers and grade rings, pulling irons, ladders, drainage sumps, racking systems, slip-resistant TraxPlate® covers, and theft-prevention LockLid™ systems.

Are vaults traffic-rated or airport-load capable?

Yes. Jensen vaults are engineered for HS-20, full vehicle traffic, and airport-rated loading requirements.

How can I request custom vault sizes?

Our team provides both standard and custom precast utility vaults. Contact Jensen Infrastructure to discuss specifications, and we’ll design a solution that fits your project needs.