Private railroad overpass

[Brandon West]

Hello, I am located in Washington state. I have a property under contract that is accessed by a private railroad overpass crossing. I am in the process of obtaining a permit for residential/farm crossing and am waiting to hear back from them. The bridge is in rough shape and the engineering firm I had looked at it said that it would only support the weight of a pickup truck but would not support the weight of a cement truck or larger weights required for development or required by the fire marshal. The Replacment cost they threw out witch was a very big guess was around 750k. This price would kill the deal. I am exploring getting an easement through adjacent properties for access but I am not holding out much hope for that option. I am wondering if anybody has any experience dealing with a situation like this. Or working with county regulations when there is inadequate access via a bridge. Anything helps thank you.