The document discusses the installation and evaluation of Infra-risers, which are made from 92% recycled materials, for several manholes along roads and intersections in Georgia. Installing Infra-risers reduces traffic vibration and water infiltration into manhole structures, extending their lifespan. Infra-risers are also lighter than concrete alternatives, reducing installation time and risks of injury. Photos document the installation process at various manhole locations using different ring sizes and riser heights.

1. East Jordan Iron Works Infra-riser installation for Georgia DOT evaluation

3. Georgia Convention Center location center lane MH1A.

4. Georgia Convention Center location center lane used 26”x34”x1/2” riser. MH1B

5. Adhesive used on both sides of riser, installed on existing V-1480 ring. MH1C

6. Placing manhole on top of structure . MH1C

7. Concrete finishing. MH1D

8. Completed manhole MH1E

9. Planet Smoothie MH2A using V-1326 ring and 26”x34”x1/2” Infra-riser.

10. Planet Smoothie MH2B.

11. Planet Smoothie MH2C located 200yds west of N. Commerce Dr.

12. Planet Smoothie MH3A using USF 170 ring and cover located 300yds west of N. Commerce Dr.

13. Planet Smoothie MH3B using 26”x34”x1” Infra-riser.

14. Planet Smoothie MH3C completed installation.

15. North Commerce Drive intersection with USF 170 ring and V-1326 12 hole cover. Installation required 26”x34”x1/2” riser and 26”x34”x1 ½” riser for 2” rise. MH4A.

16. North Commerce Drive center lane intersection MH4B.