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Fiberglass Diversion Manholes
Fiberglass Diversion Manholes are way of controlling open channel flows in a factory integrated design. Utilizing the core design of our standard fiberglass manholes, Diversion Manholes provide corrosion resistance, speed of installation, and ease of use.
A variety of flow diversion structures can be integrated into a Diversion Manhole, including:
- Internal and external pipe drops
- Full fiberglass inverts
- Straight through
- Angled
- Flow splitting
- Y / T channel combinations

Although the upfront cost of fiberglass Diversion Manholes is greater than of concrete structures, saving are immediate by the:
- Reduction in installation labor / equipment
- Minimal line down / pump around time
- Maintenance free construction
Diverison Manholes are available in a wide variety of top styles and diameters for a maximum of customization for your specific site needs.

Top styles available include:
- Domed Fiberglass Top (for grassy / non-traffic areas)
- Aluminum Top (for pedestrian areas)
- H-20 Traffic Reducer (for roads, parking lots, and warehouse floor spaces)
Diversion structures can be integrate into (5) different diameter manholes:
- 48-inches
- 60-inches
- 72-inches
- 96-inches
- 120-inches
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