The gradual increase or decrease in actual field quantities compared to original contract estimates. For subcontractors, untracked drift leads to unbilled work or disputed invoices at project close-out. Monitor quantities continuously to support change order claims.
Quantity Drift
Related Terms
PPI (Producer Price Index)
Cash FlowA government measure tracking price changes for goods and services at the producer level. Subcontractors use it to justify rate increases on long-term contracts when input costs rise. It also supports escalation clause negotiations with operators and prime contractors.
Dayrate Model
Cash FlowA pricing structure where subcontractors charge a fixed daily rate for equipment, personnel, or services regardless of output. Rates are negotiated upfront and apply for each calendar or operational day on site. This model gives field crews predictable revenue but ties income directly to days worked, not project milestones.
Alteration
Cash FlowA formal change to an existing contract's scope, timeline, or pricing. Subcontractors must document alterations in writing to protect payment entitlements. Verbal agreements alone rarely hold up during disputes or audits.
Tax-Exempt Revenue Bonds
Cash FlowGovernment-issued bonds that fund large infrastructure projects without federal tax on investor returns. For subcontractors, these bonds often finance the public projects you bid on, such as pipelines or facilities. Lower borrowing costs for project owners can mean steadier long-term contracts and more predictable payment cycles.
Headline Inflation
Cash FlowThe overall rate of price increases across the economy, including fuel and materials. For subcontractors, it signals rising operating costs that may not be covered by fixed-rate contracts. Monitor it when renegotiating agreements or submitting bids.
Natural Gas Futures
Cash FlowContracts that lock in a future price for natural gas, traded on commodity markets. When futures prices drop, upstream clients often cut budgets and delay field work. Subcontractors should monitor futures as an early signal of upcoming project slowdowns or cancellations.
Latest Cash Flow News
Gordie Howe Bridge to Open July 27, Adding Second Detroit-Windsor Span
U.S. and Canadian officials set a July 27 opening for the Gordie Howe International Bridge after a six-week delay tied to toll governance talks, adding a second commercial crossing between Detroit and Windsor.
yesterday Cash FlowKiewit's Weeks Marine Gets $88M Hudson Tunnel Change Order
The Gateway Development Commission approved an $88 million change order for Weeks Marine to clear submerged piles from the Hudson River, clearing the path for tunnel boring machines set to start in 2028.
3 days ago Cash FlowCourt Ruling Clears Funding Freeze on $16B Hudson Tunnel Project
A federal judge permanently blocked the U.S. Department of Transportation from withholding funds on the Hudson Tunnel Project, ruling the September freeze flagrantly violated federal law.
15 days ago Cash FlowAecon and Arctic Gateway Sign MOU for Port of Churchill and Hudson Bay Railway Development
Aecon Group has signed a collaboration agreement with Arctic Gateway Group to support infrastructure development in northern Manitoba, targeting the Port of Churchill and Hudson Bay Railway. Subcontractors with remote construction experience should take note of upcoming opportunities in the region.
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