765498.1 4' x 4' Precast Concrete Vaults and Associated Pads and Covers
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Revision 1
Mar 11, 2021
1. Scope
This specification applies to precast concrete open bottom and enclosed vaults that are 4' W x 4' L and their corresponding concrete covers and pads specifically for electrical use.
2. Material ID Numbers
The following vault Cat. ID's shall conform to the corresponding diagram dimensions:
2.1 Vaults and Vault Assemblies
| Material ID | Description | Section |
|---|---|---|
| 766371 | 4' x 4' x 3'6" Vault | 9.1 |
2.2 Covers and Pads
| Material ID | Description | Section |
|---|---|---|
| 765498 | 4' x 4' x 6" Cover w/ 3' x 3' Diamond Plate Hinged (725 - 850 lb) | 9.1 |
| 765505 | 4' x 4' x 6" Solid Cover (930 - 1350 lb) | 9.2 |
| 765620 | 4' x 4' x 6" Cover w/ 3' x 3' Grate/Vent (720 lb) | 9.3 |
| 765688 | 4' x 7' x 3" Cover w/ 3' x 3' Diamond Plate Hatch & 15" x 25" Cable Entrance Hole | 9.4 |
| 1002946 | 4' x 4' x 6" Cover w/ 26"W x 21"D Access Opening (1025 lb) | 9.5 |
2.3 RISERS
| MID | Description | Section |
|---|---|---|
| 780719 | 4' x 4' x 0'6 | 9.6 |
| 780777 | 4' x 4' x 1'0 | 9.7 |
3. Referenced Standards
All material, accessories, and marking for District vaults, pads, and covers shall adhere to the specifications of District Material Standard VAULTMAT1.
4. Pulling Irons
Vaults shall be equipped with 1/2" pulling irons located in the lower corners, unless otherwise specified by the District.
5. Interior Equipment Mounting Hardware
All vaults shall be equipped with interior equipment mounting hardware.
6. Lifting Inserts
All vaults, covers, and risers shall be equipped with corrosion-resistant stainless steel threaded-type lifting inserts as appropriate for the structure's weight. Each threaded insert shall be equipped with a removable threaded plastic protective cap installed flush with the riser's top surface.
7. Identification
All vaults, covers, and pads shall be marked in compliance with VAULTMAT1.
8. Hatch Covers
All hatch covers shall be constructed of H-20 rated Diamond Plate unless otherwise specified by the District. In individual cases where this is not sufficient, the District shall have the option to specify a Port Authority rating and/or a SlipNot™ finish.
9. Dimensions
Vaults, pads, and covers shall have the following dimensions and knockout distribution (where applicable). Note that multiple covers may fit each vault and that covers may have the same dimensions with different accessories, i.e., Diamond Plate Hatch vs. Steel Plate w/ SlipNot™ Hatch.
9.1 4' x 4' x 3'6" Vault & 4' x 4' x 6" Cover w/ 3' x 3' Diamond Plate
9.2 4' x 4' x 6" Solid Cover (930 - 1350 lb)
9.3 4' x 4' x 6" Cover w/ 3' x 3' Grate/Vent (720 lb)
9.4 4' x 7' x 3" Cover w/ 3' x 3' Diamond Plate Hatch & 15" x 25" Cable Entrance Hole
9.5 4' x 4' x 6" Cover w/ 26"W x 21"D Access Opening (1025 lb)
9.6 4' x 4' x 0'6 Riser
9.7 4' x 4' x 1'0 Riser
