Understand how performance standards apply to Oldcastle Infrastructure utility access underground enclosures, and find out which of our multi-material enclosures meets your requirements.
Enclosures rated for light duty are appropriate for pedestrian use only, with no risk of vehicle traffic.
Oldcastle Infrastructure Light Duty / Pedestrian underground enclosures:
A Tier 8 enclosure load rating under the ANSI/SCTE 77 standard signifies that enclosures are intended for sidewalk applications, with a safety factor applied to provide resilience against non-deliberate vehicular traffic.
Oldcastle Infrastructure Tier 8 rated underground enclosures:
A Tier 15 enclosure load rating under the ANSI/SCTE 77 standard signifies that enclosures are intended for use on driveways, parking lots and other off-roadway applications that are exposed to occasional non-deliberate heavy vehicular traffic.
Oldcastle Infrastructure Tier 15 rated underground enclosures:
A 20K enclosure load rating indicates that an enclosure has been tested and determined to be able to withstand a vertical load of 20,000 lbs. It is considered equivalent to a Tier 15 rating.
Oldcastle Infrastructure 20K rated underground enclosures:
A Tier 22 enclosure load rating under the ANSI/SCTE 77 standard signifies that enclosures are intended for use on driveways, parking lots and other off-roadway applications that are exposed to occasional non-deliberate heavy vehicular traffic.
Oldcastle Infrastructure Tier 22 rated underground enclosures:
A 32K enclosure load rating indicates that an enclosure has been tested and determined to be able to withstand a vertical load of 32,000 lbs. It is considered equivalent to a Tier 22 rating.
Oldcastle Infrastructure 32K rated underground enclosures:
An H20 enclosure load rating under the LRFD Bridge Design Specifications standard signifies that enclosures are applicable for use on roadways that are exposed to regular deliberate heavy vehicular traffic.
Oldcastle Infrastructure H20 rated underground enclosures:
Headquartered in Washington DC, the American National Standards Institute (ANSI) is a national non-profit organization that oversees the development of voluntary consensus standards and conformity assessments for a range of products, services, systems and processes in the United States.
By providing oversight and accreditation to standards developed by a range of public and private organizations, its framework ensures that goods and services meet quality and safety requirements.
NSI / SCTE 77 is a standard, developed by SCTE and accredited by ANSI, that specifies performance requirements for underground utility access enclosures exposed to non-deliberate vehicle traffic.
These enclosure load ratings are grouped into several different tiers, each referred to as a “tier rating”.
The American Association of State Highway and Transportation Officials (AASHTO) is a national non-profit organization that represents state highway and transportation departments across the United States.
Its primary objective is to support and enable the development, operation and maintenance of integrated nationwide transport. As part of its remit, it establishes technical standards for highway system development.
The LRFD Bridge Design Specifications is a list of specifications developed by AASHTO for use in the design, assessment, maintenance and repair of bridges.
It specifies maximum loads that underground enclosures must be able to withstand from deliberate vehicle traffic.
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