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Low-angle view of a highway with a long perforated drainage grate running down the center toward the horizon.

MonoBloc

Monolithic Drains

MonoBloc is a series of monolithic trench drain systems designed for strength, stability, and performance in high-traffic areas. Its single-piece polymer concrete channels eliminate weak points, providing long-term durability even under heavy loads and constant vibrations.

Easy to install and maintain, MonoBloc delivers dependable stormwater removal where drainage must perform directly in the flow of traffic, making it ideal for demanding industrial and transportation applications:

  • Highways and interstates
  • Truck stops and gas stations
  • Race tracks
  • Industrial parks
  • Container ports
  • Distribution depots
  • Toll booths
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Monolithic Ingenuity

MonoBloc’s single-piece construction provides unique benefits over removable-grate systems, especially in applications where the drainage cannot be positioned outside the flow of traffic:

  • Solid build
  • High structural strength
  • Excellent load and hydraulic capacities
  • No loosening from vibrations
  • No grates outside of access channels
  • Quick installation reduces road closures
  • More economical than grated systems
PDF BROCHURE
mono-set

Strength and Efficiency

Beige plastic terminal block with multiple arched wire openings along the side used for electrical connections with a slotted top edge.
Close-up, ground-level view of a beige tactile paving strip running along a concrete sidewalk, with a metal trench drain in the center and rocks and greenery in the background.

MonoBloc channels are made from durable, high-strength polymer concrete, which is non-flammable and highly resistant to chemicals, surface abrasions, and weathering. Slots on the HD series provide high intake, and all series include a 0.5%-0.6% sloping system for increased flow.

acousa_hd2000

Made in USA

All MonoBloc channels are designed and manufactured within the US, including plants in Arizona and Ohio. Along with compliance with the Build America Buy America Act and pride in our material and build quality, this allows for rapid production and delivery to any jobsite within the continental United States.

Durability and Compliance

Manufactured in the USA, MonoBloc meets rigorous AASHTO HS-20 and HS-25 load conditions. Each system provides a reliable and enduring stormwater management solution, aligning with sustainable infrastructure goals.

  • Polymer concrete build to match surround lifespan
  • No debris from additional parts
HS-20 HS-20
8000 lbs
32000 lbs
32000 lbs
HS-25 HS-25
10000 lbs
40000 lbs
40000 lbs

Quick Installation

ACO MonoBloc systems provide several features to support quick and easy installation:

  • Numbering for sloped system
  • Directional arrows on each channel
  • Interconnecting end profiles
  • Profiled side walls for extra support in concrete surround
  • Compatibility with ACO Installation
    Devices (HD 100 and ADA 100 only)
Nighttime construction scene with workers in high-visibility vests; a cement mixer truck and freshly poured trench repair on a city street, with steel rebar and wooden forms nearby
Beige modular plastic electrical conduit blocks with rectangular openings for cable management.

Multiple Build Options

MonoBloc ADA 100

  • ADA-compliant surface
  • EN 1433 Load Class E
  • Compatible with Catch Basin

MonoBloc HD 100

  • High intake (40% open area)
  • EN 1433 Load Class F
  • Compatible with Catch Basin

MonoBloc HD 200

  • High intake (30% open area
  • EN 1433 Load Class E
  • Compatible with Flume options
  • Beige multi-position terminal block connector for electrical wiring (informational)

    MonoBloc HD 100

    • 4” internal width
    • Polymer concrete channels
    • Monolithic (no grates)
    • 0.5% sloped system
    • EN-1433 Load Class A–F
    Explore Product
  • Beige plastic terminal block with multiple arched wire openings along the side used for electrical connections with a slotted top edge.

    MonoBloc ADA 100

    • 4” internal width
    • Polymer concrete channels
    • Monolithic (no grates)
    • 0.5% sloped system
    • EN-1433 Load Class A–E
    Explore Product

  • MonoBloc HD 200

    • 8” internal width
    • Polymer concrete channels
    • Monolithic (no grates)
    • 0.6% sloped system
    • EN-1433 Load Class A–E
    Explore Product
  • Product Literature
    • MonoBloc Product Line Overview PDF
    • MonoBloc Maintenance Guide PDF
    • ACO Drain Polymer Concrete Installation Manual PDF
    • ACO Drain Installation Device Guide PDF
    • ACO Drain Installation Device Positioning Template PDF
Drainage grate running along a concrete curb with grass on the left and pavement on the right.

High-Strength Polymer Concrete

Polymer concrete offers greater structural strength & stability than most other trench drain materials.

Row of precast concrete highway drainage blocks with vertical slots, laid in a dirt construction site for drainage

Monolithic Build

Provides high structural strength and lacks parts that can loosen due to vibrations from excessive traffic.

Wide street with tram rails running down the center, a green bike lane on the right, and multiple crosswalks and traffic signals ahead.

Traffic-Ready Load Capacity

ACO MonoBloc systems support AASHTO HS-25 and EN 1433 Load Class E-F.

Construction site with a trench and concrete culvert segments laid in, wooden supports, and an excavator in the background.

Sloped Systems

MonoBloc HD 100 and ADA 100 provide 0.5% slope across 40 channels, while HD 200 provides 0.6% slope across 25 channels.

Two hollow concrete blocks arranged in an L-shaped corner for construction.

Interconnecting End Profiles

Allow for easy and effective joining of channels. Sealant can be applied for additional hold.

Close-up of a beige plastic component showing a row of rounded, oval cavities with 'FLOW' and arrows imprinted above, suggesting a mold or flow channel part.

Profiled Side Walls

Provides more structural strength within concrete surround than flat side walls.

Beige plastic mold with a repeating row of oval cavities and arrows labeled FLOW.

Channel Install Guidance

Each channel provides numbering and directional arrows to assist in installation.

Highway with lane closures under an overpass, wet pavement, and orange traffic cones; green overhead signs point to routes toward South Bend, Chicago, and Milwaukee.

Chemical and Abrasion-Resistant

Channels are naturally resistant to common roadside chemicals and general surface drainage

Beige modular hollow construction brick with circular holes and a black insert on top used in wall systems.

Outlet Options

MonoBloc HD 100 and ADA 100 work with fitted catch basins, while HD 200 supports 8″ and 12″ horizontal and vertical flumes.

Transportation & Infrastructure

Beige multi-position terminal block connector for electrical wiring (informational)
HD 100
HD 200
Beige plastic terminal block with multiple arched wire openings along the side used for electrical connections with a slotted top edge.
ADA 100
Channel Length 39.37″ 48.00″ 39.37″
Channel Width 6.30″ 10.24″ 6.30″
Channel Internal Width 4.00″ 8.00″ 4.00″
Channel Depth 6.89″-14.76″ 12.52″-19.88″ 6.89″-14.76″
Channel Invert Depth 5.91″-13.78″ 12.52″-19.88″ 5.91″-13.78″
Channel Weight 77.4-111.5 Ibs 241.0-272.6 Ibs 81.4-116.5 Ibs
Channel Slot Sizes 0.98″ × 1.18″, 0.98″ × 1.57″ 1.58″‘ × 2.45″, 1.58″ × 3.31″ 0.47″ × 3.15″, O.47″ × 1.65″
Channel Clear Opening Width 3.94″ 7.87′ 3.94″
Channel Wall Thickness 0.39″ minimum 0.75″ minimum 0.39″ minimum
Load Class (EN 1433) F900 E600 E600
Load Class (AASHTO) HS-25 HS-25 HS-25