AASHTO H20/HS-20 Trench Covers

LOAD RATED TO 40,000 LBS: FOR 16,000 LB WHEEL LOADS
PLUS A 2X SAFETY FACTOR

AASHTO H20 or HS-20 Load Ratings are specified for areas that will be subjected to frequent vehicle traffic such as roadways and parking lots. The H20 or HS-20 design load is designed for 16,000 lb. wheel loads plus a 2.5 times safety factor. Our H20 or HS-20 load rated covers are designed to meet AASHTO’s M-306-10 load test requirements – proof load testing to 40,000 lbs. without any permanent deformation exceeding 3.2 mm or 1/8”.

Fibrelite can design custom size H20 or HS-20 Load Rated covers trench covers to meet nearly any dimensional requirements, with the following dimensional limitations.

Frame or Rebate Installation:

MAXIMUM TRENCH SPAN:

MAXIMUM COVER WIDTH:

MAXIMUM COVER LENGTH:

RECOMMENDED COVER DEPTH*:

66”

72”

60”

4”

*Other depths available upon request.

Frame CAD DWG Download

Looking for something else?

Explore our trench cover range below

Pedestrian up to:
250 to 350 lbs

ANSI Tier 5 up to: 5,000 lbs

ANSI Tier 8 up to: 8,000 lbs

ANSI Tier 15 up to: 15,000 lbs

ANSI Tier 22 up to:
22,500 lbs
 
 

AASHTO
H25/HS-25
Loading up to:
50,000 lbs

AASHTO
H40/HS-40 up to:
64,000 lbs
 

Extreme Loading Requirements
up to: 202,000 lbs