Navigator CO2 Ventures is proposing the Heartland Greenway Pipeline. Heartland Greenway is a proposed carbon capture and sequestration (CCS) system that will provide biofuel producers and other industrial customers in five Midwest states with a long-term and cost-effective means to reduce their carbon footprint. Heartland Greenway will reach industrial customers in Illinois, Iowa, Minnesota, Nebraska and South Dakota. Operations are expected to be phased in early 2025. The estimated $3 billion project would lay about 900 miles of steel pipe — ranging in diameter from 6 to 24 inches. Navigator plans to solidify its final proposed route for its pipeline — dubbed the Heartland Greenway System — the rest of this year and apply for a federal permit. If successful, it expects to receive state and federal permits in the second half of 2023 and start construction in 2024.Lee said the starts of construction would happen in 20 different places concurrently in 2024.