(D) Bridges, tunnels and other instrumentalities of transportation and communication (excluding buildings, their improvements and betterments, furniture and furnishings, fixed contents and supplies held in storage), including auxiliary facilities and equipment attendant thereto; piers, wharves, docks and slips; other aids to navigation and transportation, including dry docks and marine railways.
In this chapter "inland marine" insurance shall not include insurance of vessels, crafts, their cargoes, marine builders' risks, or other similar risks, commonly insured only under ocean marine insurance policies.