County / national tender

Roadside drainage, both sides — 1 km

Open lined side drains to a 1 km rural road: 2 km of drain excavated to profile, grouted stone pitching, scour checks, six culvert crossings and gabion outfalls.

What the bill measures

Item	Qty	Unit
21.01(a)(i) Excavation for open drains: soft material, 0.0 m up to 1.5 m deep 2000m x 0.63 m3/m	1,260	m3
22.03(b) Concrete pipe culverts on Class B bedding, 600 mm dia 6 crossings x 8m	48	m
22.07(a) Cast in situ concrete in Class A bedding, screeds and encasing for pipes, including formwork, class 20/20, bedding and aprons	9	m3
23.05(a) Inlet, outlet, transition and similar structures (typical designs), masonry scour checks at 50m centres on grade	40	No.
23.05(a) Inlet, outlet, transition and similar structures (typical designs), masonry culvert headwalls and wingwalls inlet and outlet to each crossing	12	No.
25.01(c) Wired and grouted stone pitching, 150 mm, drain lining 2000m x 1.65 m2/m	3,300	m2
25.01(c) Wired and grouted stone pitching, 150 mm, outfall aprons	120	m2
26.04(a) Galvanised gabion boxes, 2 x 1 x 1 m boxes, filled and laced 24 boxes at 6 outfalls; m2 of exposed face, 2 m2 per box; confirm the basis	48	m2
31.01(a) Clearing and grubbing 1.5m working width x 2 sides x 1km	0.3	ha
35.12(a) Grassing, including topsoiling	2,000	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.

Other civil works

Murram access road — 1 km

Culvert crossing — 900mm pipes

Plot drainage & erosion control

Piped storm water drainage — 500 m

Footway & kerbing, both sides — 1 km