BudgetGuessr project library

What the world’s biggest projects really cost

Compare published costs, timelines, project scale and original sources behind remarkable infrastructure and space missions.

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1733 projects

Road or highway · United States

$2.83 billion

Washington State Route 509

2029

Railway · Italy

€738 million

Bologna tramway network

Approximately $838 million

Heavy Volume Traffic on the Parkway at mile 96.6, in Wall Township, New Jersey

Road or highway · United States

$330 million

Garden State Parkway

1956

View of the newly completed Mike O'Callaghan – Pat Tillman Memorial Bridge from the Nevada dam access road.

Road or highway · United States

$318 million

Interstate 11

2018

Road or highway · United States

$15.155 billion

Appalachian Development Highway System

1965

created by user brianhe 2005-12-28 Taken from near Bellevue fire station #7 on east side of trestle.

Bridge · United States

$43.5 million

Wilburton Trestle

2027

Proposed layout of High Speed 2 terminus at Euston Station and also the terminus for High Speed 1 at St Pancras Station

Railway · United Kingdom

£102.7 billion

High Speed 2

2026

Approximately $135.23 billion

Washington Bridge (I-195) spanning the Seekonk River between Providence and East Providence, Rhode Island

Bridge · United States

$427 million

Washington Bridge

2028

Port · India

INR 88.6714 billion

Vizhinjam International Seaport

2024

Approximately $1.06 billion

Upload Wizard photos of - - Pan-Philippine Highway[1] or Daang Maharlika - along the scenic and most beautiful Subic–Clark–Tarlac Expressway SCTEX [2] taken from a UV Van Express going to Balanga, Bataan, moving vehicle photography of the amazing scenery of hills and mountains, Sierra Madre Mountain ranges, Central Luzon to Dinalupihan exit at Dinalupihan, Bataan [3] exit going to Layac, Dinalupihan, Bataan.

Road or highway · Philippines

PHP 27 billion

Subic-Clark-Tarlac Expressway

2008

Approximately $598.54 million

A northbound train at Santa Rosa Downtown station in August 2018

Railway · United States

$944 million

Sonoma–Marin Area Rail Transit

2019

Autostrada A1 Durrës-Kukës, mbi hartën administrative të Shqipërisë

Road or highway · Albania

$1.3 billion

Rruga e Kombit (Albania A1)

2011

Highway 15 in Saskatchewan, Canada. This section runs concurrently with Highway 654. It is just south of the community of Conquest and west of the Outlook Bridge over the South Saskatchewan River.

Road or highway · Canada

CAD 22.7 million

Saskatchewan Highway 15

2023

Approximately $16.82 million

The toll plaza that marks the eastern end of the Massachusetts Turnpike's toll ticket system.

Road or highway · United States

$257 million

Massachusetts Turnpike

1957

view of the Port of the Americas in Ponce from Vigia hill.

Port · United States

$285 million

Rafael Cordero Santiago Port of the Americas

2014

Ordsall Chord, also known as the Castlefield Curve, is a short railway line in Ordsall, Salford, England, which links Manchester Piccadilly and Manchester Oxford Road to Manchester Victoria, designed to increase capacity and reduce journey times into

Railway · United Kingdom

£85 million

Ordsall Chord

2017

Approximately $109.4 million

Lungmen Nuclear Power Plant in the background of the Yanliao Anti-Japanese Monument

Energy · Taiwan

$9.9 billion

Lungmen Nuclear Power Plant

2015

Road or highway · India

INR 94.6 billion

National Highway 248BB

2025

Approximately $1.09 billion

Tunneling work for North East Link on Greensborough Road, Watsonia.

Road or highway · Australia

AUD 26.1 billion

North East Link

2023

Approximately $17.34 billion

Energy · United States

$5 billion

Bellefonte Nuclear Plant

2021

Road or highway · Australia

AUD 288 million

Majura Parkway

2016

Approximately $214.09 million

Vantaan pikaraitiotiehankkeen tiedotuskampanja kaupungintalon edustalla Asematiellä Tikkurilassa.

Railway · Finland

€750 million

Vantaa light rail

2029

Approximately $847.49 million

The Nairobi expressway in Chiromo approaching Westlands. In the background is the GTC Complex which contains the second tallest building in Nairobi and the highest occupied floor in the city.

Road or highway · Kenya

KES 87.9 billion

Nairobi Expressway

2022

Approximately $745.76 million

Lockwood Beck site; the site for one of the shafts on the Woodsmith Mine Tunnel

Tunnel · United Kingdom

£1.28 billion

Woodsmith Mine Tunnel

2018

Approximately $1.71 billion