Dauer Hall, Bldg. 111 P Replace Air Handling Unit 7 P UF W.O. 1263969
CENF 10036
SECTION 16106/MANHOLES AND PULL BOXES
1
GENERAL
1.1
Drawings and general provisions of Contract, including General and Supplementary
Conditions and Division-1 Specification Sections, apply to the work of this Section.
1.2
This Section is a Division-16 Basic Materials and Methods Section, and is part of each
Division-16 Section making reference to or requiring products specified herein.
1.3
Submittals: Submit the producer's standard descriptive data sheets for each type of
product being provided. Mark the data sheet for the product being provided with an
identifying mark or arrow.
1.4
All pullboxes and manholes shall be traffic rated with a minimum loading capacity
provided as necessary to comply with the American Association of State Highway and
Transportation Officials (AASHTO) Standard H-20.
2
PRODUCTS
2.1
Acceptable Producers: Brooks, Carlon, Hughes Prestressed, Neenah, Florida Precast,
O-Z/Gedney, U.S. Foundry, A.C. Miller Concrete Products, Inc.
2.2
Concrete: Refer to the Division "Concrete". Minimum concrete strength shall be 3,000
pounds, in 28 days.
2.3
Reinforcing Steel and Wire Mesh: Refer to the Division "Concrete".
2.4
Manhole Covers and Fittings:
2.4.1
Manhole Covers and Frames: Shall be round, extra heavy duty cast frames and covers
with words “Electric” or “Telephone” as appropriate, cast in the covers. Clear opening
diameter shall be 44" with 33" pump ring or as shown on drawings. Manhole roof
opening and masonry throat shall be 48" clear inside.
2.4.2
Miscellaneous Fittings: All cable racks, pulling eyes, supports and miscellaneous fittings
shall be hot dipped galvanized. Provide a minimum of 3 racks on each wall.
2.5
Pullboxes: 2'x2'x2' minimum or as shown on plans. AASHTO-20 traffic-rated, concrete
with cast-iron bolt down cover. Provide countersunk flush penta-head 1/2" stainless steel
bolts.
2.6
Fastenings: Shall be manufactured of corrosion-resistant materials such as Type 18-8
stainless steel.
2.7
Location Identification: Pull boxes underground shall be identified with legend on cover
and a monument marker shown in the Section "Basic Materials and Methods".
3
EXECUTION
MANHOLES AND PULL BOXES
16106.1
Dauer Hall, Bldg. 111 P Replace Air Handling Unit 7 P UF W.O. 1263969
CENF 10036
3.1
General: Manhole shall be installed level and at a depth to provide a minimum of 12" of
earth above top of manhole. Lid shall be flush with finished grade.
3.2
Excess materials after backfilling shall be disposed by Contractor.
3.3
Cast-in-Place Manholes and Pull Boxes: Cast-in-place concrete type manholes or pull
boxes shall be monolithic. Wood frames shall be used for both interior and exterior
walls. Dowels shall be provided at all construction joints. Reinforcing steel and mesh
shall be placed as required and supports shall be used to hold them in place until
concrete is placed. Top of manholes shall be given a float finish and cover frames shall
be grouted in. Install stubs, sump and ground rods as shown on the Drawings.
3.4
Pre-Fabricated Manholes and Pull Boxes: Other than cast in place type, manholes and
pull boxes shall be located as shown on the drawings. Design of manholes or pull boxes
shall include pulling eyes, cable or conductor racks, etc. Identify with a monument
marker.
END OF SECTION
MANHOLES AND PULL BOXES
16106.2