KRS 180.280: Bridges and tunnels -- When part of primary road system.

Bridges and tunnels shall be considered as part of the state primary road system where it

is necessary or desirable to construct bridges or tunnels as part of state primary roads.

Except as otherwise provided in KRS 180.020 to 180.240 as to toll bridges, a ll general

laws relating to the construction of primary roads shall be construed to include bridges

and tunnels, except that bids for the construction or reconstruction of only one (1) type of

bridge or tunnel shall be received and only one (1) type shall be advertised, based on the

plans and specifications for the particular bridge or tunnel.