QLD Main Roads
Rectangular Main Roads Pits & Lids
As well as the T60 & T100 pit ranges, Tri Underground are a manufacturer and supplier of the P1, N1/3, P4 and P8 type pits to suit the Main Roads network. These are all Main Roads approved pits that meet MRTS91 and are made to suit SD1631. The relevant TRI Tuff Type 4 and Galvanised Steel Lids options are manufactured to suit SD1632, SD1633 and SD1634. Type 7 pits, lids and infill lids to suit are available upon request.
See below our product tables for further information about these pits & lids
|
Pit Type |
A |
B |
C |
D |
E |
F |
G |
H |
|
*P1 |
516 |
232 |
408 |
410 |
125 |
425 |
140 |
350 |
|
N1/3 |
585 |
315 |
520 |
445 |
210 |
450 |
225 |
470 |
|
P4 |
700 |
400 |
820 |
550 |
240 |
580 |
275 |
765 |
|
P8 |
1370 |
550 |
895 |
1185 |
440 |
1250 |
430 |
850 |
P1-P9 Lid / Cover Data
There are a variety of pit covers designed to meet different networks including, QLD TMR, NBN, Telstra & Energy Queensland. See below table for our commonly supplied lids options. Other styles such as infill lids, lockable and pad-lockable lids are available upon request
Lid Type | Length | Width | Depth | Weight | Lid Options |
P1* | 473mm | 193mm | 40mm | 8kg | Elec & Comms |
N1/3 | 498mm | 270mm | 50mm | 17kg | Elec & Comms |
P4 | 651mm | 346mm | 50mm | 26kg | Elec & Comms |
P8 | 651mm | 499mm | 50mm | 30kg | Elec & Comms |
Steel Antislip Lids (QLD TMR approved
TRI TUFF Lids (QLD TMR approved)
Tri Underground is the exclusive manufacturer and supplier of the Tri Tuff Class B Composite Cover. This Australian-made cover is widely used through Queensland for both Main Roads & Councils as it’s lightweight and made from a non-conductive, slip resistant composite material. This is beneficial as no insulated coating is required to make this lid safe & non-conductive.
