Subterra Series Tier 15 Handhole (32x44x45 ID)
Approved
BABA, BEAD
Compliant
Made in USA
Description
The Subterra Max Tier 15 handhole in the 32x44x45 internal size is the deepest enclosure in Norvant’s mid-tier line, built for mixed-load sites that need maximum internal volume without stepping up to Tier 22. The 45-inch depth gives crews the space to store large slack coils, stack multiple splice cases and rack cable for future growth, making it well suited to aggregation points on utility corridors and shoulders. The HDPE base and Impact Modified Resin lid deliver dependable Tier 15 performance at around 172 lb, keeping it far lighter than an equivalent concrete structure while holding a mid-tier load class. The added depth and mass mean a lifting aid is sensible on placement. An anti-heaving ribbed sidewall design locks the unit into backfill to stop settling after install, and internal ribbing adds strength under working ground. This size accepts the same cable management, locating puck and custom branding options as the rest of the Max Tier 15 range. Engineered to meet ANSI/SCTE 77 Tier 15 and BABA and BEAD compliant, it is ready for federally funded mid-tier builds.
Dimension
32
x
44
x
45
inches
Weight
Lid:
42
lb
Base:
130
lb
Material
HDPE
Benefits
- Fiber contractors
- Utilities
- Municipal broadband projects
Applications
- Fiber FTTH
- Fiber Backbone
- Telecom Access
Environments
- Utility corridors
- Shoulders and verges
- Sidewalks
Specifications
Technical specifications and dimensions
Every detail engineered for field performance and cost efficiency. Tier 3 delivers the capacity and durability that networks demand.
Dimension
32
x
44
x
45
inches
Weight
Lid:
42
lb
Base:
130
lb
Material
HDPE
Options Available:
- cable_management
- locating_puck
- custom_logo_plate
Comparison
Norvant Design Innovation vs Standard Handhole Features
See how Tier 3 stacks up on capacity, lead time, installation, and compliance.
Design Feature
Why This Matters
Norvant Solution
Standard Market Offerings
Lid Security in Flood Conditions
Heavy rain causes vaults to flood, pressure buildup lifts lids into traffic or they float away
Auto-Latch System – automatic locking prevents lid displacement under pressure
Manual friction-fit lids that can dislodge; requires separate locking mechanisms or weighted lids
Ground Movement Protection
Freeze-thaw cycles and soil heaving push vaults upward, breaking seals and damaging installations
Flared Anti-Heaving Base Design – wider footprint resists vertical displacement from frost and water action
Straight-wall designs rely on weight alone; vulnerable to seasonal ground movement
Structural Strength
Smooth walls requiring thicker material or composite reinforcement to achieve same load rating
Working Space for Splicing
High-density fiber deployments need room for splice cases, slack storage, and future cable additions
25% Larger Internal Capacity at same price tier – future-proofs against network growth
Standard internal dimensions force premature change-outs as take-rates increase
Asset Location & Management
Field crews waste time locating buried infrastructure; asset databases become outdated
Designed for Locating Puck Integration – optional sensor enables GPS mapping and digital asset management
No provisions for tracking technology; relies on paper maps or technician memory
Design Feature
Lid Security in Flood Conditions
Why This Matters
Heavy rain causes vaults to flood, pressure buildup lifts lids into traffic or they float away
Norvant Solution
Auto-Latch System – automatic locking prevents lid displacement under pressure
Standard Market Offerings
Manual friction-fit lids that can dislodge; requires separate locking mechanisms or weighted lids
Design Feature
Ground Movement Protection
Why This Matters
Freeze-thaw cycles and soil heaving push vaults upward, breaking seals and damaging installations
Norvant Solution
Flared Anti-Heaving Base Design – wider footprint resists vertical displacement from frost and water action
Standard Market Offerings
Straight-wall designs rely on weight alone; vulnerable to seasonal ground movement
Design Feature
Structural Strength
Why This Matters
HDPE is lightweight but must withstand Tier 22 load ratings (33,750 lbs) without flexing
Norvant Solution
Ribbed Sidewall Engineering – internal reinforcement maintains structural integrity at lower weight
Standard Market Offerings
Straight-wall designs rely on weight alone; vulnerable to seasonal ground movement
Design Feature
Working Space for Splicing
Why This Matters
High-density fiber deployments need room for splice cases, slack storage, and future cable additions
Norvant Solution
25% Larger Internal Capacity at same price tier – future-proofs against network growth
Standard Market Offerings
Standard internal dimensions force premature change-outs as take-rates increase
Design Feature
Asset Location & Management
Why This Matters
Field crews waste time locating buried infrastructure; asset databases become outdated
Norvant Solution
Designed for Locating Puck Integration – optional sensor enables GPS mapping and digital asset management
Standard Market Offerings
No provisions for tracking technology; relies on paper maps or technician memory
