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Kiewit Infrastructure West Co. · Heavy civil construction · Mariposa, CA

Kiewit Infrastructure West Co.Mariposa, Mariposa County, CAUpdated

National Park Service signed a $103.3M contract with Kiewit Infrastructure West Co. on Jun 11, 2026 for heavy civil construction in Mariposa, California. The work is planned to end Dec 2031.

Obligated
$103.3M ($103,310,000)
Planned end
Dec 31, 2031 (2031-12-31)

Who's on this contract

Named in the award record. The prime decides its own subcontracts.

  • Prime contractor

    Kiewit Infrastructure West Co.

  • Buying office

    National Park Service

Schedule

Dates as reported. Not a bid calendar. A planned date is not evidence that work occurred.

  1. in ~5 yr

    Planned endPlanned

  2. Today

    Latest snapshot

    Last material change Oct 22, 2026.

  3. 4 mo ago

    Work startsPlanned

  4. 4 mo ago

    Contract signed

    National Park Service signed this definitive contract with Kiewit Infrastructure West Co..

    Event date: · First observed: Not reported

Record quality

Sources cited
2
Summary
From published records
Source as of
Last material change

Report an error in this record

Contract record

USAS USAspending.gov (FPDS)

Contract

Prime contractor
Kiewit Infrastructure West Co.Prime contractor · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032USAspending.gov recipient profile of the primeAs of Jun 11, 2026
Obligated so far
$103,310,000Obligated so far · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Agency
Department of the InteriorAgency · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Buying office
National Park ServiceBuying office · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Contract type
Definitive contractContract type · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Award ID (PIID)
140P2026C0032Award ID (PIID) · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032

Work

Work
Heavy civil constructionWork · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Industry (NAICS)
237990 Other heavy and civil engineering constructionIndustry (NAICS) · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
Product or service (PSC)
Y1PZ Construction of other non-building facilitiesProduct or service (PSC) · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032

Dates

Signed
2026-06-11Signed · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032Reported date — see the source for the event evidenced.
Work starts
2026-06-11Work starts · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032Reported date — see the source for the event evidenced.
Planned end
2031-12-31Planned end · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032Planned date — not evidence that work occurred.

Place of performance

City
MariposaCity · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
County
MariposaCounty · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
State
CaliforniaState · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032
ZIP code
95338ZIP code · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032

What the contract is for

Yose 215363 - replace tuolumne meadows wastewater treatment plant, at yosemite national park in california.

What the contract is for · USAspending.gov (FPDS)USAspending.gov award record (FPDS data, US government, public domain)As of Jun 11, 2026 · Record: 140P2026C0032

Sources, method and limits

Show 2 sourcesHide

Sources and evidence

  1. USAS
  2. USAS

Limitations and interpretation

  • A contract award is not an open bid. The prime contractor decides its own subcontracts, and some may already be let.
  • The amount is what the agency has obligated so far, as USAspending.gov reports it. Options and later modifications can change it.
  • The place of performance is as the contracting officer entered it in FPDS. For some awards it is the contracting office, not the work site.
  • Defense contracts appear about 90 days after signature, so the newest Defense awards are not here yet.
  • Source: USAspending.gov, from the Federal Procurement Data System (FPDS). US government data, public domain.

Cite or correct this record

Kapwork Grow, “Kiewit Infrastructure West Co. · Heavy civil construction · Mariposa, CA”, https://kapwork.com/grow/directory/federal/kiewit-infrastructure-west-co-mariposa-ca-fa_ef96a6842034, materially updated Oct 22, 2026.

Report an error in this record and we will check it against the cited sources.

A contract award is not an open bid. The prime decides its own subcontracts, and the amount is what the agency has obligated so far. “Not reported” means missing information, not zero. Completed and withdrawn records can remain available as historical records.

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