NJ Transit will cross-honor some bus tickets in response to a potential traffic nightmare caused by construction in New York City, the agency said.

A three-month repair project at the Alexander Hamilton Bridge, which spans the Harlem River and connects Manhattan to the Bronx on Route 95, has forced lane closures and could lead to back-ups through Hackensack Monday, officials have warned. Highways feeding the George Washington Bridge could also see massive delays.

In Fort Lee, police were prepared to block local roads from spill-over traffic, northjersey.com reported Sunday. Leonia’s mayor had also floated a plan to block non-local traffic from exiting off Route 80.

Teaneck and Hackensack officials had no immediate plans to shut down local roadways.

The lane closures began over the weekend, with minimal traffic delays. Some minor delays were reported because of a Yankee game and minor accident.

Officials have encouraged commuters to use mass-transit. NJ Transit announced the following lines could experience slowdowns:

The impacted bus routes include:

• 171 Paterson – New York
• 175 Ridgewood – New York
• 178 Hackensack – New York
• 181 Union City – New York
• 182 Hackensack – New York
• 186 Dumont – New York
• 188 North Bergen – New York

Local bus routes operating in Fort Lee could also be impacted:

• No. 153 Fairview – Fort Lee – New York Express
• No. 154 Fort Lee – Palisades Park – New York
• No. 156 & 156R Englewood Cliffs – New York
• No. 158 Fort Lee – Edgewater – New York
• No. 159 & 159R Fort Lee – New York

• No. 755 Edgewater - Fort Lee – Paramus

• No. 756 Englewood Cliffs – Fort Lee - Paramus

Bus tickets on these routes will be cross-honored on NJ Transit’s Northeast Corridor, North Jersey Coast Line, Midtown Direct, Main/Bergen and Pascack Valley Lines (except for travel to/from Metro-North stations), the agency said.

For live road conditions, visit 511nj.org. For George Washington Bridge traffic alerts, visit btt.paalerts.com