New Era Field will have a new turf playing surface for the 2019 season.
The aim is to replace the track that rings the field as well as actual playing surface as part of a series of projects that include concrete repairs, new paint and yearly maintenance.
The turf most recently was replaced in 2011. Given the weather conditions in the area, the need to replace the turf after eight years is not unusual.
Money for the improvements will come from an annual fund that includes contributions from the Bills, Erie County and the state.
Under the terms of the lease, Erie County contributes $3 million annually for stadium upgrades and work at the stadium. That work includes the turf this year.
The field is expected to be installed in May. A spokesman for Erie County Executive Mark Poloncarz said bids are out for the project.
The Bills' current lease expires in summer 2023, though the Bills can opt out in 2020. The team has said it has no plans to opt out. The stadium had $130 million in renovations in 2014 as part of an agreement to extend the lease to 2023.
In March, the NFL approved an $18 million renovation to improve the stadium's sideline clubs and signage in advance of the 2018 season. The renovations were privately funded by the Bills.
The team also announced an $18 million expansion of the team's practice facility adjacent to New Era Field.