Steve my modules are in a storage facility and I only take them out for shows. The next show is not until the end of January, it's the "bigun" in Springfield, MA, "Winterfest '05". We have another show this coming weekend, a kiddie Christmas party event, but I will not be setting up the bridge module. I assume that is the one you are refering to, my arch bridge module.
Charlie, yup it is standard "N" gauge. Would like to have gone narrow with Nn3, but fiddling and modifying the Kato power unit to convert scales is beyond me right now.