24” x 30” Heavy Duty Catch Basin Frame & Grate – Class C Cast Iron

The 24” x 30” Heavy Duty Catch Basin Frame & Grate is engineered for stormwater collection applications requiring an expanded drainage footprint, increased runoff interception capacity, and long-term structural performance. Manufactured from heavy-duty cast iron and designed for Class C service conditions, this drainage assembly is ideally suited for municipal infrastructure, transportation projects, commercial developments, industrial facilities, and public works construction.

Featuring a horizontal slotted grate configuration, this catch basin assembly is designed to efficiently capture and convey surface runoff into underground drainage systems. The rectangular 24” x 30” profile provides a larger collection area than traditional square grates, making it particularly effective in applications where increased hydraulic intake capacity and broader water collection coverage are required.

Stormwater management systems rely on drainage structures capable of collecting runoff before it accumulates on roadways, parking areas, sidewalks, and developed properties. The larger grate opening area associated with a 24” x 30” assembly helps facilitate efficient water intake while supporting overall drainage system performance during routine rainfall events and peak storm conditions.

Its precision-cast frame and grate assembly is engineered to provide stable seating, dimensional consistency, and long-term durability under demanding service environments. The heavy-duty cast iron construction offers exceptional resistance to wear, impact, weather exposure, and repeated loading cycles commonly encountered in municipal and commercial infrastructure applications.

The elongated grate design is frequently specified for roadway shoulders, curbline drainage systems, transportation corridors, commercial parking facilities, industrial sites, and utility infrastructure projects where expanded runoff collection capability is beneficial. By combining a larger drainage footprint with the proven durability of cast iron, this assembly delivers dependable performance throughout the lifecycle of the drainage system.

Engineers, municipalities, contractors, developers, utility authorities, and public works agencies rely on cast iron drainage castings because of their proven strength, long service life, and ability to perform reliably in demanding field conditions. The 24” x 30” Heavy Duty Catch Basin Frame & Grate continues that tradition by providing a specification-ready solution designed for modern stormwater infrastructure projects.

Features & Benefits

• Heavy-duty cast iron construction engineered for long-term infrastructure performance
• Horizontal slotted grate pattern designed for efficient runoff interception
• Expanded 24” x 30” footprint provides increased drainage collection area
• Class C rated for municipal and commercial applications
• Designed to support efficient hydraulic flow and stormwater conveyance
• Precision-cast frame and grate assembly for secure seating and installation stability
• Excellent resistance to impact, abrasion, corrosion, and environmental exposure
• Suitable for roadway drainage, parking facilities, industrial properties, and public infrastructure
• Supports effective stormwater management and surface water control
• Available with custom logos, utility markings, municipal identifiers, and project-specific casting requirements

Applications

This 24” x 30” heavy duty catch basin frame and grate assembly is commonly specified for:

• Municipal stormwater collection systems
• Roadway and curbside drainage infrastructure
• Transportation corridor drainage projects
• Commercial property drainage systems
• Parking lot runoff management
• Industrial site stormwater control
• Utility and service corridor drainage
• Public works construction projects
• Surface water conveyance systems
• Storm sewer collection networks
• Civil site development projects
• Large paved area drainage applications

Product Specifications

Designed for Expanded Stormwater Collection Capacity

Drainage infrastructure must be capable of efficiently managing runoff while maintaining dependable structural performance throughout years of service. Catch basin grates serve as the primary collection point within stormwater systems, helping transfer surface water into underground conveyance networks that protect surrounding infrastructure from flooding, erosion, and standing water accumulation.

The 24” x 30” Heavy Duty Catch Basin Frame & Grate is designed for applications requiring greater collection capacity than traditional square drainage grates. Its rectangular geometry increases the effective intake area available for stormwater interception, making it particularly beneficial in locations exposed to concentrated runoff or larger drainage basins.

The horizontal slotted grate pattern supports efficient hydraulic performance by allowing water to enter the drainage system across multiple collection channels. This design helps improve runoff capture efficiency while maintaining the structural integrity necessary for municipal and commercial environments.

Cast iron remains one of the most widely specified materials for drainage infrastructure because of its exceptional compressive strength, dimensional stability, wear resistance, and proven long-term field performance. Combined with an expanded collection footprint, this assembly provides a reliable drainage solution for projects where durability and performance are critical considerations.

Frequently Asked Questions

Why choose a 24” x 30” catch basin frame and grate?

A 24” x 30” assembly provides a larger drainage footprint and increased runoff collection capacity, making it ideal for areas with greater stormwater volumes or larger drainage zones.

What advantages does a horizontal slotted grate offer?

Horizontal slot patterns are designed to promote efficient surface water collection and support consistent hydraulic flow into underground drainage systems.

Where are rectangular catch basin grates commonly installed?

Rectangular drainage grates are frequently utilized along roadways, curb lines, transportation corridors, parking facilities, industrial properties, and municipal stormwater systems.

Why is cast iron preferred for drainage infrastructure?

Cast iron offers excellent durability, compressive strength, wear resistance, and long-term reliability in demanding outdoor environments exposed to traffic and weather conditions.

What does a Class C drainage rating indicate?

Class C drainage products are designed for municipal and commercial infrastructure applications requiring dependable structural performance and reliable stormwater management capabilities.

Can Amercast provide custom drainage castings?

Yes. Amercast may provide custom logos, utility markings, municipal identifiers, lettering, and project-specific casting modifications depending on project requirements.

Amercast manufactures specification-ready cast iron drainage products for municipalities, engineers, contractors, transportation agencies, developers, and public works professionals seeking dependable stormwater management solutions and durable infrastructure components.

Contact our team for pricing, lead times, bulk ordering opportunities, and custom casting support.

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