How Much Does the Hudson Tunnel Project Cost?

Published on August 30, 2026 | Written by Alec Pow
This article was researched using 17 sources. See our methodology and corrections policy.

The Hudson Tunnel Project is building a new passenger-rail crossing between New Jersey and Manhattan and will later rehabilitate the existing North River Tunnel. The federal capital baseline places the work at $16.041 billion, according to the June 2025 FTA report.

That budget covers much more than boring beneath the Hudson River. It includes approach tracks, Manhattan and New Jersey tunnel sections, systems, property, engineering, contingency, financing, and rehabilitation of the century-old rail tubes. The figure applies to this project rather than every project in the wider Gateway Program.

The useful cost unit is the full capital project, with construction packages and financing making up major pieces. Contract awards should be read as portions of the approved budget rather than automatically added on top of it.

How Much Does the Hudson Tunnel Project Cost?

The Hudson Tunnel Project carries a federal capital baseline of about $16.041 billion (at $30 per hour, earning that amount would take about 257 thousand years of full-time work, before taxes), with federal grants covering most of the budget and loans financing much of the local share.

Important numbers

• Gateway Development Commission described the project as a rounded $16 billion budget in January 2026, with roughly $12 billion coming from federal grants and about $4 billion financed through federal loans in its January 2026 funding release.
• The Hudson River Tunnel Section received a $1.29 billion contract award in April 2026, according to the April 2026 tunneling award.
• Current August 2026 reporting still describes the project as roughly $16 billion, with about $2 billion spent to date, according to the August 2026 Reuters report.

The Hudson Tunnel Project

The project creates two new rail tubes beneath the Hudson River between New Jersey and Manhattan, plus the approach tracks and supporting infrastructure needed to connect them to the Northeast Corridor and New York Penn Station. After trains can use the new crossing, the existing North River Tunnel will be taken out of service in stages for rehabilitation. Amtrak and NJ Transit trains use that older tunnel today.

The scope boundary matters. The Hudson Tunnel work is part of Gateway, but projects such as the Secaucus/Bergen Loop, Penn Station expansion, Sawtooth Bridges replacement, and other later corridor investments are outside this budget. The GDC project scope separates the tunnel project from those wider Gateway investments.

Three Hudson Tunnel cost views

Capital-baseline case. The formal budget is the right figure when comparing the complete Hudson Tunnel Project with another megaproject. GDC’s adopted project budget listed $16.041 billion (about 257 thousand years of full-time work at $30 per hour), including financing and contingency, in the approved project budget record. This case answers the question of what the project is budgeted to cost.

Rounded public case. GDC’s January 2026 board material uses $16 billion as the public-facing total and splits the financing at roughly 70% federal and 30% local in its January board presentation. This is the useful shorthand figure for nontechnical discussion.

Spent-to-date case. Reuters reported about $2 billion spent against a rounded $16 billion project figure in late August 2026. Dividing $2 billion by $16 billion gives 12.5%, so the reported spending represented about one-eighth of the rounded budget at that point. This case answers how much cash had gone out, not how much the completed project will cost.

What the $16.041 billion project budget pays for

The project budget spreads money across several types of work rather than one giant tunneling invoice. The largest construction activity includes guideway and track work, excavation, tunnel structures, surface approaches, systems installation, utilities, property, and later North River Tunnel rehabilitation.

Professional services cover design, program management, engineering, construction management, legal and technical work. The federal budget also includes finance charges. The December 2024 FTA monitoring record states that the $16.041 billion (about 257 thousand years of full-time work at $30 per hour) total included $1.421 billion in finance charges in its FTA cost monitoring record. Those costs arise because part of the local share is financed over time rather than paid entirely in cash at construction.

Budget area	Work covered
Guideway and track	Tunnel structures, rail alignment, approaches, and related civil work
Systems	Rail, electrical, communications, ventilation, safety, and operating systems
Site and property	Utilities, special site conditions, land, access, and existing improvements
Professional services	Engineering, design, management, oversight, and construction support
Contingency and finance	Budgeted uncertainty and borrowing-related project charges

This full-project accounting is very different from a simple per-mile civil construction comparison. Similar scope questions arise when reading large rail project costs, where stations, systems, financing, land, and civil structures can sit inside the same headline budget.

Contract packages

GDC breaks the work into construction packages so contractors can bid on defined sections. The Hudson River Tunnel Section is one of the largest. Its $1.29 billion award covers about 1.5 miles of twin-bore tunneling beneath the river. Another major package is the New Jersey Surface Alignment Project, awarded at $711.7 million in June 2026 through the New Jersey alignment award. That work connects the new tunnel to existing rail infrastructure around North Bergen and Secaucus.

The project also contains the Palisades Tunnel, Manhattan Tunnel, ground stabilization, utility relocation, tunnel fit-out, and later North River Tunnel rehabilitation. GDC’s current procurement record lists these packages separately. A contract award is a portion of the capital program. It should not be added to the headline budget as though the budget existed before contracts and the contracts were new costs outside it. That distinction also applies to highway construction cost comparisons, where one contract package can cover only part of a larger corridor investment.

Change orders, contingency, and financing

Large underground projects encounter conditions that cannot always be resolved before field work begins. GDC approved an $88 million change order in July 2026 for Weeks Marine to remove submerged wooden piles ahead of planned Hudson River tunnel boring, according to the July 2026 change order. That modification changes a contract. It does not by itself establish that the full project budget rose above the federal capital baseline.

Contingency exists for this type of uncertainty. GDC’s baseline budget included $2.388 billion in unallocated contingency and $1.421 billion in finance charges, according to its 2024 baseline budget. That document is older than two years and is used here as historical baseline detail, with later FTA monitoring retaining the same total capital figure.

Worked funding total

The financing side can be confusing because grants and loans are different forms of support. The Federal Transit Administration’s Full Funding Grant Agreement supplies $6.88 billion, and the Federal Railroad Administration’s Federal-State Partnership agreement supplies another $3.8 billion. Adding those two major grants gives $10.68 billion. GDC’s 2024 funding announcement also lists a RAISE grant, Amtrak funding, and the local financing structure in its federal funding agreement release.

• FTA Full Funding Grant Agreement, $6.88 billion
• FRA Federal-State Partnership grant, $3.8 billion
• Two-grant subtotal, $10.68 billion

The loan side should stay outside that grant subtotal. GDC closed RRIF loans totaling about $4.06 billion to finance the local share, with repayment tied to New York, New Jersey, and the Port Authority. The loan must be repaid. Treating it as another grant would overstate the federal subsidy and blur who carries the long-run financing burden.

Tunneling under the Hudson

The construction setting combines difficult underground work with one of the country’s busiest rail corridors. Crews must bore below the Hudson, pass through the Palisades, reach dense Manhattan, connect with active tracks, manage utilities, stabilize ground near the riverfront, and preserve existing rail service during years of construction. The project then has to rehabilitate the North River Tunnel without removing all cross-Hudson rail capacity at once. These conditions create substantial engineering, staging, safety, access, and schedule demands.

Work also happens across several jurisdictions and property environments. Surface construction in New Jersey differs from river tunneling, and both differ from excavation near Manhattan buildings and rail infrastructure. The New York Attorney General reported in June 2026 that construction continued after litigation preserved federal funding in the June funding court update. Funding interruptions can affect contractor schedules even when the physical design does not change. A straight per-mile comparison with surface transportation construction misses much of that work.

Who this cost makes sense for

The $16.041 billion figure is the right reference when the subject is the complete Hudson Tunnel Project under the federal capital baseline. A single tunneling award is better when discussing one contractor’s scope, and a wider Gateway figure is needed when discussing corridor projects beyond the new tunnel and North River Tunnel rehabilitation. The accounting boundary changes the answer.

Makes sense if

• You are pricing the defined Hudson Tunnel Project rather than all Gateway investments.
• You want a capital figure that includes financing and contingency.
• You keep grants, loans, contract awards, and expenditures in separate categories.
• You attach a date to budget and spending figures.

Doesn’t make sense if

• You are pricing only the new river tubes.
• You are referring to the complete Gateway Program.
• You add each contract award on top of the approved budget.
• You treat federally backed loans as nonrepayable grants.

What we verified

• Checked the FTA monitoring report page, which identifies the June 2025 project oversight record used for the federal capital baseline.
• Confirmed the March construction update, which recorded resumed work after the early-2026 funding interruption.
• Cross-referenced the February funding release, which documented restoration of previously withheld federal payments.

A reader comparing the project with another public megaproject should match like with like. Renovation-only budgets, single contract packages, and complete transportation programs have different scope boundaries, as seen in other major public renovation costs.

Article Highlights

• The federal capital baseline is $16.041 billion.
• GDC commonly rounds the project to $16 billion in public material.
• Federal grants provide roughly $12 billion of the budget.
• RRIF loans finance much of the local share and require repayment.
• Recent billion-dollar contracts are components of the project budget.
• Contingency and financing were already included in the adopted baseline.

Answers to Common Questions

How much does the Hudson Tunnel Project cost?

The formal federal capital baseline is $16.041 billion. Public statements commonly round that amount to $16 billion.

Is the Hudson Tunnel Project the same as the Gateway Program?

No. The tunnel project is one major component of Gateway. Other Gateway projects have separate scopes and budgets.

How much of the project is federally funded?

GDC describes roughly 70% of the budget, close to $12 billion, as federally grant-funded. Much of the remaining local share is financed through federal RRIF loans that must be repaid.

Did the $88 million change order raise the total project cost?

The change order increased a specific construction contract. No reviewed source established that it created a new capital baseline above $16.041 billion.