N.J. Stat. § 48:12-49.1
The railroad company or companies involved shall pay 15% and the Department of Transportation, out of funds to be provided for that purpose, shall pay 85% of the entire expense of constructing any bridge or passage over or under the railroad or right-of-way pursuant to order of the department under R.S. 48:12-49. Such expense shall include, without limitation thereto, damages to adjacent property and the cost of removing, relaying or relocating any municipal pipes, conduits or subways.
In lieu of the apportionment of expenses as set forth above, if the department finds that such construction of any bridge or passage is necessary due to increased vehicular or pedestrian traffic within the limits of the municipality or county having jurisdiction over the road, street or avenue involved, the department may order the entire expense to be paid as follows: 15% by the railroad company or companies involved, 15% by the municipality (or municipalities) or county (or counties) having jurisdiction over the roads, streets or avenues involved and 70% by the department.
The railroad company or companies involved shall pay 5% and the department, out of funds to be provided for that purpose, shall pay 95% of the entire expense:
In lieu of the apportionment of expenses as set forth in the preceding paragraph, if the department finds that such installation, enlargement, change, reconstruction, relocation or modification is necessary due to increased vehicular or pedestrian traffic within the limits of the municipality or county having jurisdiction over the road, street or avenue involved, the department may order the entire expense to be paid as follows: 5% by the railroad company or companies involved, 15% by the municipality (or municipalities) or county (or counties) having jurisdiction over the roads, streets or avenues involved and 80% by the department.
The municipalities and counties involved are hereby authorized and empowered to make such payments.
Notwithstanding the provisions of R.S. 48:12-49 or any other law, rule or regulation to the contrary, a municipality or a county, as the case may be, upon the approval of the Commissioner of Transportation, is authorized to enter into a contract with a railroad company for the construction, reconstruction, maintenance or repair of any passage at grade across a railroad or right-of-way located within the boundaries of its geographic jurisdiction and the protective devices thereon designed to protect the public health and safety, including, but not limited to, safety gates, electric bells, and electric signs or signals. The contract shall set forth the rights and responsibilities of the parties thereto, including the apportionment of payments and costs.
N.J.S. § 48:12-49.1