County / national tender
Culvert crossing — 900mm pipes
Single stream crossing: excavation, twin 900mm pipes, masonry headwalls, pitching and gabion protection.
What the bill measures
| Item | Qty | Unit |
|---|---|---|
| 22.01(a)(i) Excavation for culverts: soft material, 0.5 m up to 1.5 m deep | 45 | m3 |
| 22.02(b) Backfilling using imported selected material | 30 | m3 |
| 22.03(b) Concrete pipe culverts on Class B bedding, 900 mm dia
twin line x 5m
|
10 | m |
| 22.07(a) Cast in situ concrete in Class A bedding, screeds and encasing for pipes, including formwork, class 15/20 blinding 50 mm
15 m2
|
0.75 | m3 |
| 22.07(c) Cast in situ concrete in inlet and outlet structures, catchpits and manholes, class 20/20, surround and apron | 4 | m3 |
| 23.05(a) Inlet, outlet, transition and similar structures (typical designs), masonry culvert headwalls and wingwalls | 2 | No. |
| 25.01(c) Wired and grouted stone pitching, 150 mm | 25 | m2 |
| 26.04(a) Galvanised gabion boxes, 2 x 1 x 1 m boxes, filled and laced
8 boxes; m2 of exposed face, 2 m2 per box; confirm the basis
|
16 | m2 |
Preliminaries and the contractor's own obligations (Bills 1 and 9) are added to the project too, unpriced. Items the library has no rate for — manholes, catchpits, small-bore pipes, trench support, and the contractor's own obligations in Bills 1 and 9 — are measured in full and left at nil for you to price. On a tender you are issuing that is the correct form: the rate column is the question. On one you are pricing, those are the lines to put your own build-up against first.
Murram access road — 1 km
Plot drainage & erosion control
Roadside drainage, both sides — 1 km
Piped storm water drainage — 500 m
Footway & kerbing, both sides — 1 km