Federal Spending Explorer

Contract notice CN4132901 · National Capital Authority

Head Contract, for Planning and Design phase one for Commonwealth Avenue bridge renewal project

$167m whole-of-life value, after 1 amendment

+$150m (+876.9%) since first published at $17m

Supplier
Seymour Whyte Constructions Pty Ltd ABN 48105493187
Agency
National Capital Authority
Procurement method
open tender
Term
2025-03-11 to 2029-01-31
Published
2025-03-07
Category (UNSPSC)
81100000
Agency reference
C25/017

Worth a closer look

Value increased after award: +877% on first published value. Agencies must publish amendments that change a contract’s value. Large increases can mean the original scope or price was understated.

Common explanations: Additional work or an extended term agreed after award. Options in the original contract that were later taken up. A correction to a value entered wrongly.

Value by financial year

The total value spread evenly from start to end date. estimate: annualised

Financial yearEstimated amount
2024-25$13m
2025-26$43m
2026-27$43m
2027-28$43m
2028-29$25m

Published versions

Every version of this notice we have loaded. Source: AusTender OCDS API.

DateVersionValue
2025-03-07original notice$17m
2025-12-22amendment$17m
2025-12-22amendment$17m
2025-12-22amendment$166m
2025-12-22amendment$167m