5.3.1 Bid Item Quantity Tolerances (Degree of Accuracy)

Table 5-1

shows the greatest degree of accuracy that should be shown in the estimate for the various items. Quantities should be shown on the Engineer’s Estimate to the accuracy given in this table.

Table 5-1: Bid Quantity Tolerances
Item	Show to the nearest
Earthwork Items (including Structural Excavation & Backfill)	0.01 0.01 1 1 1	STA AC CY SY YH
Watering and Sprinkling	0.1	MG
Blading, Rolling & Traffic Control	1	HR
Base and Base Treatment Items	0.01 1 1 1	STA CY SY TON
Asphalts, Oils and Emulsions	1 0.01	GAL TON
Asphaltic Pavements & Surface Treatment Aggregates/Materials	1 1 1	TON CY SY
Concrete Pavement Items (also to include Riprap & Structure Approach Slabs)	1 1	CY SY
Cleaning, Sealing Joints, Sealed Expansion Joints Preformed Joint Sealers	1 0.01 1 1	LF LM LB GAL
Planning, Texturing, Fabric Underseal & Surface Rehab	1	SY
Trench Excavation	1	LF
Pilings & Drilled Shafts	1	LF
Structural Concrete (including Structural Repairs, Concrete Overlay of Structure Decks, Pre-cast Concrete Pipe, Pipe, Culverts & Drains)	0.1 0.1 1 1	CY SY SF LF
Retaining Wall	1	SF
Reinforced Concrete Slabs & Traffic Signs	1	SF
Pre-stressed Concrete Beams	0.01	LF
Structural Steel (including Armor Joint & Sign Support) (nearest 10 lb or 100 lb if 1% accuracy is maintained)	1	LB
Bridge Railing (including Removal)	0.1	LF
Jacking, Boring or Tunneling	1	LF
Timber Structures	1	MFB
Detours	0.1 1	STA SY
Traffic Barrier & Pavement Markings	1	LF
Curb, Gutter, C&G, Sidewalks, Walkways, Driveways, Medians & Islands	1 1	LF SY
Fencing, Underdrains, Conduit, Conductors, Cable & Detectors	1	LF
MBGF	See Note (1)
Mobilization ⁽²⁾	0.01
Items measured by the Month, Each or Lump Sum	1
Notes: 1. MBGF quantities should be reported in increments of 12.5 LF, per the Statewide MBGF Standard Details on TxDOT.gov Roadway Standards webpage . 2. See Section 5.5.2 for additional guidance on calculating Mobilization amounts for projects with multiple CSJs.

5.3 Bid Item Quantities