Tier 22 BABA Vaults -Tier 22 Polymer Concrete BABA Vaults- BABA Tier 22 Vaults – BABA Compliant TIER 22 BABA Handholes- Tier 22 BABA Handholes- Tier 22 BABA Telecommunications Vaults- Tier 22 BABA Telecom Vaults- BABA Telecom Tier 22 Handholes – AASHTO Underground Vaults – AASHTO Handholes – DOT Junction Box
Tier 22 BABA Vaults (Build American Buy American)
When your project demands a strong, traffic-rated underground enclosure, Tier 22 vaults are engineered to perform. Whether for driveways, parking lots or occasional heavy-vehicle traffic zones, these enclosures deliver the durability and compliance required for modern infrastructure.
What Does “Tier 22” Mean?
The “Tier” rating system in the context of underground utility enclosures (such as those governed by the American National Standards Institute / Society of Cable Telecommunications Engineers-77 standard) classifies handholes or vaults by load-bearing capacity. Tier 22 indicates suitability for driveways, parking lots and off-roadway installations subject to occasional non-deliberate heavy vehicle traffic (e.g., trucks).
In contrast, “Tier 15” covers lighter-duty situations such as standard vehicles or pedestrian zones.
Key Benefits of Tier 22 Vaults
- High load capacity: Designed to withstand heavy-vehicle point loads in non-through traffic areas.
- Compliance-ready: Many Tier 22 vaults are certified to meet the ANSI/SCTE-77 Tier 22 loading requirements, and some are designed for environments where Build America, Buy America Act (BABAA) compliance is required.
- Material versatility: Available in polymer concrete, advanced composite materials, or reinforced fiberglass – offering durability, corrosion-resistance and lightweight handling.
- Future-proof installations: With wider dimensions and deeper cavities, Tier 22 vaults accommodate modern utility infrastructure (fiber, telecom, electrical) with ample space for splice closures, slack loops and conduit entries.
Typical Applications
Use Tier 22 vaults in situations such as:
- Driveways or parking lots where heavier vehicles (e.g., service trucks) occasionally pass.
- Commercial or industrial sites with underground telecom/electrical infrastructure under vehicle zones.
- Municipal or utility projects requiring vaults rated for heavy-vehicle loading but not full through-traffic carriage-ways.
- Grant-funded broadband deployments (BEAD / BABAA) where certified, compliant enclosures are necessary.
Material & Design Considerations
When specifying Tier 22 vaults, consider:
- Material type: Polymer concrete is traditional and robust, composite materials (e.g., advanced composites) offer lighter weight and easier handling.
- Dimensions & depth: Vaults are sized to accommodate required hardware – many manufacturers list specific dimensions (e.g., 24″×36″×24″, 30″×48″×36″).
- Loading specs: Ensure the specification sheet lists Tier 22 rating (often with test loads ~33,750 lb or design loads ~22,500 lb) for your environment.
- Compliance markings: For funded projects, confirm that the enclosure is listed as BABAA- or BEAD-eligible where required.
- Installation logistics: Material weight, drop-in depth, lid configuration (one piece vs split), mouseholes/conduit knockouts – all matter for ease of installation and serviceability.
How to Choose the Right Tier 22 Vault
Here’s a simple selection checklist:
- Confirm traffic-loading: Will the vault location see heavy vehicles? If yes, Tier 22 is appropriate; if only light vehicles/pedestrians, Tier 15 may suffice.
- Determine internal volume: How many cables, splices, slack loops must the vault accommodate?
- Choose material based on site needs: e.g., polymer concrete for ruggedness, composite for lighter weight handling.
- Check compliance: If project is BEAD/BABA funded, verify the product is flagged as compliant.
- Specify lid type and size: Ensure cover matches loading requirements and access workflow (maintenance, cable deployment).
- Ensure lead time and shipping: Large vaults are heavy and may require special freight; confirm availability beforehand.
Why Tier 22 Vaults Matter for Infrastructure Projects
In the era of expanding broadband, fiber-to-the-home (FTTH) networks, utility upgrades and municipal infrastructure roll-outs, the underground vault is the unsung hero. A vault that isn’t adequately rated can lead to failure, costly repairs and safety hazards. Specifying a Tier 22 rated enclosure means you’re choosing a structure built to last — engineered for heavy loads, service access, future capacity and regulatory compliance.
Whether you’re a contractor, engineer or procurement manager, understanding and specifying the correct load rating isn’t optional — it’s essential.
Load Ratings for Vaults
- AASHTO (American Association of State Highway and Transportation Officials): This organization develops standards for highway and bridge design, including load ratings.
- H-20 and HS-20: These are specific load ratings used to determine the structural capacity of various components, including vault lids and other structures that may be subjected to vehicular traffic.
- ANSI/SCTE 77 is a performance specification to ensure the structural integrity of underground enclosures, and was updated in 2017
- Tier Ratings: ANSI/SCTE 77 uses a tier system to classify load ratings for underground enclosures, with Tier 5, Tier 8, Tier 15 and Tier 22 being the most common
- Tier 15: Driveway, parking lot, and off-roadway applications subject to occasional non-deliberate heavy vehicular traffic (standard passenger vehicles)
- Tier 22: Driveway, parking lot, and off-roadway applications subject to occasional non-deliberate heavy vehicular traffic (Trucks and larger vehicles)
- AASHTO H-20 (deliberate traffic, different specifications): deliberate vehicular traffic applications
- ASTM C857 and ASTM C858 are also used to design underground precast concrete utility structures
- ASTM C150 and ASTM C33 are used for cement and concrete aggregates
Loading Requirements
| Pedestrian-rated | Vertical | Test Load | 13.3kN | 3,000 Lbs |
|---|---|---|---|---|
| Tier 8 | Vertical | DesignLoad | 35.6kN | 8,000Lbs |
| TestLoad | 53.4kN | 12,000 Lbs | ||
| Lateral | DesignLoad | 28.7kN | 600Lbs/sq. ft | |
| TestLoad | 43.1 kN | 900Lbs/sq. ft | ||
| Tier 15 | Vertical | DesignLoad | 66.7kN | 15,000Lbs |
| TestLoad | 100.1 kN | 22,500 Lbs | ||
| Lateral | DesignLoad | 38.3kN | 800Lbs/sq. ft | |
| TestLoad | 57.5 kN | 1,200 Lbs/sq. ft | ||
| Tier 22 | Vertical | DesignLoad | 100.1kN | 22,500Lbs |
| TestLoad | 150.1 kN | 33,750 Lbs | ||
| Lateral | DesignLoad | 38.3kN | 2,400Lbs/sq. ft | |
| TestLoad | 57.5kN | 3,600 Lbs/sq. ft | ||
| AASHTO H-20 | Certified precastconcrete, cast iron, or AASHTO recognized material | |||
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Vault Price List
Price does not include shipping.
| POLYMER CONCRETE HANDHOLE CATALOG | wt. (lb) | Pieces per truckload | Pallets per truck | DISTRIBUTOR PRICE |
| POLYMER CONCRETE HANDHOLE 17″X30″x24″ T22 | 258 | 171 | 19 | $ 188.00 |
| POLYMER CONCRETE HANDHOLE 24″X36″x24″ T22 | 437 | 102 | 17 | $ 279.00 |
| POLYMER CONCRETE HANDHOLE 30″X48″X36″ T22 | 785 | 60 | 30 | $ 515.00 |
| POLYMER CONCRETE HANDHOLE 30″X60″X36″ T22 | 1061 | 38 | 19 | $ 685.00 |
| POLYMER CONCRETE HANDHOLE 36″X60″X36″ T22 | 1211 | 36 | 18 | $ 790.00 |
| POLYMER CONCRETE HANDHOLE 36″X60″X48″ T22 | 1376 | 32 | 16 | $ 905.00 |
| POLYMER CONCRETE HANDHOLE 12″x12″x12″ T22 | 67 | 672 | 28 | $ 57.00 |
| FIBERGLASS HANDHOLE 24″x36″x24″ T15 | 375 | 116 | 29 | $ 292.00 |
| FIBERGLASS HANDHOLE 30″x48″x36″ T15 | 600 | 68 | 17 | $ 490.00 |