Description
The Micro Engineering 75-521 is a HO scale unassembled kit of a 50′ Through-Girder Double-Track Bridge — the prototype's geometry, web depth, and rivet detail captured in injection-moulded engineering plastic and metal.
About through-girder bridges: Through-girder construction puts the steel girders above the deck — rail rides between two tall side walls, with cross-bracing across the top tying the girders together. Used where the bridge deck must sit at minimum height above the river/road below (e.g. low clearance over navigable water), since the girder structure is above-deck rather than below-deck.
Kit contents: Engineering plastic / metal bridge components and instructions. Unassembled and unpainted — assemble per instructions, paint your railroad's bridge colour (railroad-tuscan, black, olive drab — era and road dependent), then lay ME Bridge Flex Track (#11-1xx series, with wide ties and guard rails) on top to finish.
About Micro Engineering: Micro Engineering bridge and structure kits are the prototype-quality choice for serious modellers — accurately scaled rivet detail, correct girder web proportions, and prototypical paint schemes once you finish them.
- Scale: HO (1:87)
- Prototype: Through-Girder Double-Track Bridge
- Length: 50′ prototype
- Type: Unassembled, unpainted bridge kit
- Pairs with: ME Bridge Flex Track #11-1xx series
- Distributor SKU: 255-75521
In stock at Oakville Model Trains Depot.

