Description
24" Round ADA Manhole Frame & Grate | Heavy-Duty Cast Iron H-20 Rated Drainage Solution
The Amercast 24" Round ADA Manhole Frame & Grate (Item #1098) is a heavy-duty cast iron drainage assembly engineered for municipal infrastructure, stormwater management systems, commercial developments, utility installations, and roadway applications. Manufactured from ASTM A48 Class 30B gray cast iron and designed to meet H-20 wheel loading requirements, this durable frame and grate assembly delivers long-term performance in demanding traffic and environmental conditions.
Featuring a 24-inch ADA-compliant grate opening and a 4-inch frame height, this round manhole frame and grate provides reliable stormwater collection while helping maintain pedestrian accessibility. The ADA grate design promotes efficient water flow while reducing trip hazards, making it ideal for streetscapes, sidewalks, parks, transportation facilities, schools, campuses, commercial properties, and public infrastructure projects.
Engineers, municipalities, contractors, precast manufacturers, and utility authorities rely on Amercast drainage products because they are built to withstand decades of service in harsh environments while minimizing maintenance and replacement costs.
Why Choose the Amercast 24" Round ADA Manhole Frame & Grate?
- 24" round ADA-compliant grate opening
- Heavy-duty cast iron construction
- ASTM A48 Class 30B gray iron
- H-20 traffic rated
- Designed for municipal and roadway applications
- Excellent stormwater drainage performance
- Corrosion-resistant cast iron material
- Compatible with precast concrete structures
- Long service life in high-traffic environments
- Manufactured for demanding infrastructure projects
Engineered for Municipal Infrastructure Projects
Modern municipalities require drainage infrastructure capable of handling increasing traffic volumes, severe weather events, and long-term lifecycle demands. The Amercast 24" Round ADA Grate is engineered to perform in these challenging conditions while maintaining accessibility and safety standards.
The robust cast iron frame and grate assembly is commonly specified for municipal storm sewer systems, roadway drainage structures, public works projects, transportation infrastructure improvements, utility vaults, and commercial developments where strength and durability are critical.
Because cast iron remains one of the most trusted materials in underground infrastructure, municipalities and engineers continue to specify heavy-duty cast iron drainage products for projects requiring decades of dependable service.
ADA-Compliant Drainage Solution
Accessibility is a critical consideration in modern infrastructure design. The ADA-compliant grate pattern is designed to provide effective drainage while helping create safer pedestrian environments.
This makes the Amercast 24" Round ADA Manhole Frame & Grate an excellent choice for:
- Sidewalk drainage systems
- Public plazas
- Transportation facilities
- University campuses
- Government buildings
- Downtown streetscape projects
- Parks and recreation facilities
- Commercial developments
The grate opening pattern promotes efficient stormwater collection while supporting accessibility requirements frequently specified in public and commercial construction projects.
Designed for H-20 Traffic Loading
Heavy-duty infrastructure requires drainage products capable of withstanding continuous vehicle traffic and repeated loading cycles. This manhole frame and grate assembly is manufactured to meet H-20 wheel loading requirements, making it suitable for roadway applications, parking lots, transportation facilities, industrial sites, and commercial developments.
The cast iron construction provides exceptional compressive strength and durability, helping reduce maintenance costs and extend service life when compared to lighter-duty drainage products.
Common Applications
Municipal Infrastructure
- City streets
- County roads
- Public works projects
- Transportation facilities
- Roadway drainage systems
Stormwater Management
- Storm sewer systems
- Drainage structures
- Water management facilities
- Retention systems
- Detention systems
Commercial Construction
- Retail developments
- Office complexes
- Mixed-use developments
- Parking lots
- Distribution centers
Industrial Facilities
- Manufacturing plants
- Logistics facilities
- Heavy equipment yards
- Utility service areas
- Industrial drainage systems
Utility Infrastructure
- Utility vaults
- Water systems
- Wastewater facilities
- Telecommunications infrastructure
- Underground utility structures
Product Specifications
| Specification | Dimension |
|---|---|
| Item Number | 1098 |
| Overall Diameter (B) | 34" |
| Grate Diameter (C) | 24" |
| Clear Opening (D) | 22-3/8" |
| Frame Height (E) | 4" |
| Frame Seat Diameter (F) | 24-1/4" |
| Grate Thickness (X) | 1-3/8" |
| Material | ASTM A48 Class 30B Gray Cast Iron |
| Load Rating | H-20 |
| Compliance | ADA Compliant |
Frequently Asked Questions
What is an ADA-compliant manhole grate?
An ADA-compliant manhole grate features opening dimensions designed to improve pedestrian safety and accessibility while maintaining effective stormwater drainage performance.
What does H-20 rated mean?
H-20 loading is a common infrastructure specification used for roadway and traffic applications. It indicates the frame and grate assembly is designed to withstand heavy vehicular loading conditions commonly found on streets, roads, and commercial developments.
What material is this manhole frame and grate made from?
This assembly is manufactured from ASTM A48 Class 30B gray cast iron for exceptional strength, durability, and long-term performance.
Can this grate be used with precast concrete structures?
Yes. This product is commonly used with precast manholes, drainage structures, utility vaults, and stormwater infrastructure systems.
What industries use this type of drainage grate?
Municipalities, civil engineering firms, precast manufacturers, utility authorities, contractors, transportation agencies, and commercial developers commonly specify this style of cast iron drainage grate.
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- Request a Quote
Request a Quote
Need pricing, lead times, submittal information, or engineering assistance? Contact Amercast today for expert support on municipal drainage products, cast iron manhole frames, utility castings, stormwater infrastructure components, and custom casting solutions.









