Construction Contract (Federal)

A federal construction contract is a legally binding agreement between a government agency and a contractor for the erection, alteration, demolition, or repair of a public building or public work. These contracts are governed primarily by FAR Part 36, which establishes procurement procedures, contract clauses, and quality requirements specific to construction. Unlike supply or service contracts, construction contracts involve unique risks related to site conditions, labor requirements, and performance bonds that shape how agencies solicit bids and how contractors price and perform work.

What is a federal construction contract?

Federal construction contracts are used when an agency needs to build or modify a physical structure such as a federal office building, military facility, border crossing, dam, road, or utility system. FAR Part 36.102 defines construction broadly to include new construction as well as alteration and repair of existing structures.

The procurement process typically begins with an Invitation for Bids (IFB) under sealed-bid procedures (FAR Part 14), making construction one of the few remaining domains where the government regularly uses low-bid award rather than best-value tradeoffs. For complex projects, agencies may use negotiated acquisition with a Request for Proposals under FAR Part 15.

The Davis-Bacon Act (40 USC 3141) applies to most federal construction contracts exceeding $2,000, requiring contractors to pay prevailing wages and fringe benefits to laborers and mechanics as determined by the Department of Labor. Wage determinations are incorporated directly into the contract solicitation.

Miller Act bonding requirements (40 USC 3131) apply to construction contracts exceeding $150,000. The prime contractor must furnish a performance bond guaranteeing project completion and a payment bond protecting subcontractors and suppliers from non-payment.

Why it matters for contractors

Federal construction contracts offer a substantial and relatively stable revenue stream, but the compliance burden is high. Contractors must track Davis-Bacon wage rates for every trade classification on the job, submit certified payrolls, and manage a subcontractor compliance chain that extends the same obligations downstream. Failure to pay prevailing wages can result in back wages, debarment, and withholding of contract funds under the Copeland Anti-Kickback Act.

Bid preparation requires careful site investigation because the Differing Site Conditions clause (FAR 52.236-2) provides a remedy for unexpected subsurface conditions but requires prompt written notice to the contracting officer. Contractors who fail to provide timely notice may forfeit their right to an equitable adjustment.

Liquidated damages clauses (FAR 52.211-12) are standard in construction contracts. The daily rate, set at the time of solicitation, begins accruing on the day after the contract completion date regardless of the cause of delay unless the contractor obtains a government-approved extension.

Example

A regional construction firm bids on an IFB to renovate a VA medical center outpatient clinic. The contract is valued at $4.2 million. The firm submits a bid bond for 20 percent of the bid price, wins the contract at low bid, and then furnishes performance and payment bonds equal to 100 percent of the contract price. Three months into construction, workers encounter an underground concrete vault not shown on the drawings. The contractor submits a written differing-site-conditions claim within the required timeframe, and the contracting officer issues an equitable adjustment covering excavation and removal costs.