30″ X 50″ Rectangular Manhole

30" X 50" Reinforced Rectangular Manhole

Precast concrete manholes are an integral component of any modern sewer or storm drain system. Precast concrete manhole sections are produced in a controlled environment, thus exhibiting high quality and uniformity. CalPortland’s precast manholes are manufactured to meet or exceed the requirements of A.S.T.M. C478 specifications shown and are continually followed to assure close fit and strength for standard manhole entrances.

PRODUCT OPTIONS:

  • 6″ Wall

Los Angeles County Department of Public Works - Standard Drawing 2002-1

PRODUCT NOTES:

  • Top Section
  • Center Section
  • Bottom Section

CALPORTLAND CONCRETE PRODUCTS

519 South Benson Avenue, Ontario, CA 91762

CALL US: (909) 983-9789

HOURS

Monday7:00AM-4:00PM PST
Tuesday7:00AM-4:00PM PST
Wednesday7:00AM-4:00PM PST
Thursday7:00AM-4:00PM PST
Friday7:00AM-4:00PM PST
SaturdayClosed
SundayClosed