SELFLEVEL® Concrete Access Assembly

 SELFLEVEL® Concrete Access Assembly

Engineered to keep manhole covers flush with the pavement

The concrete SELFLEVEL® Access Assembly has been designed specifically for concrete applications. By incorporating adjustment brackets into the design, the frame can be held up during the concrete installation. This product is ideal for environments with frost heave, as the frame floats with the surface.

selflevel concrete-installationImproved Ride Quality

Once installed, the unit will continue to move with the road surface. The road surface aids in absorption of traffic vibration and shock, further protecting the life of your infrastructure and critical underground structures. SELFLEVEL has a range of motion of up to a 5° tip angle while still moving with the surface. This design helps eliminate frost heave/uplift, manhole structure settling, site deterioration, and pavement cracking. It also provides improved ride quality to meet smooth street initiatives.

The “Floating” Effect

The multi-functional seal helps keep the upper frame centered within the guide frame, which prevents the two pieces from touching. The seal protects against excess debris and material from entering the manhole.

The guide frame facilitates self-centering and keeps the upper frame centered over the manhole structure, and the upper frame is supported by and moves with the surrounding road surface. This allows it to remain level with the road surface. This “floating” effect helps prevent road damage and protects the infrastructure underground by dispersing traffic vibrations and shock throughout the road surface, rather than into the structure below.

Concrete Application Features

A steel sleeve creates a void while pouring concrete to allow the upper frame to float with the road surface. The adjustment bracket and bolt for raising the upper frame up off the lower frame during pouring gives it clearance to "float" when set in concrete. After the concrete cures, the bracket and bolt are removed and can be reused. Adjustment bolt tabs can be cut off for greater clear opening after installation.

selflevel concrete-close upStandard Features

  • Heavy duty
  • Upper frame is supported by road surface, and can be installed with a maximum tip angle of 5°
  • Steel sleeve protects the unit (SELFLEVEL) from concrete interference
  • Lifting handles on upper frame allow for easier handling during installation
  • Lower frame is bolted to structure below
  • Proof load exceeds AASHTO M 306 standards
  • Frame fits with existing manhole covers


  • Special lettered covers
  • Custom logo covers
  • Transitional frame (square base to round top)
  • EON LOCK® bolting
  • Cam lock
  • Neoprene gasket for cover
  • Watertight*
  • INFRA-RISER® adjustment riser
  • Multiple frame openings and heights available

*Bolted assembly required.

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Talk to an expert at EJ to find out how the innovative solutions by EJ can work for your next project.  Contact us today or schedule a Lunch and Learn.

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