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I consider bridges to be the focal points of my two model railroads, both of which have been the subject of articles in O Gauge Railroading Magazine (Runs 214 and 304).

The first six pictures show the three bridges (two truss bridges with a girder bridge between them) on my 12’-by-8’ layout completed in 2004. I built them from spruce wood kits by Miami Valley Products. They are 36 inches in length (144 feet full scale).

The next three pictures show the trestle and truss bridge on my 10’-by-5’ layout completed in 2019. I designed and built these basswood bridges from scratch. They are 24 inches in length (96 feet full scale).

MELGAR

MELGAR_2022_0830_01_THREE_BRIDGES_12X8MELGAR_2022_0830_02_THREE_BRIDGES_12X8MELGAR_2022_0830_03_GIRDER_BRIDGE_INNER_TRUSS_BRIDGE_12X8MELGAR_2022_0830_04_THREE_BRIDGES_12X8MELGAR_2022_0830_05_THREE_BRIDGES_12X8MELGAR_2022_0830_06_THREE_BRIDGES_LOWER_YARD_12X8MELGAR_2022_0830_07_TRESTLE_AND_TRUSS_BRIDGE_10X5MELGAR_2022_0830_08_TRUSS_BRIDGE_10X5MELGAR_2022_0830_09_TRUSS_BRIDGE_CLOSEUP_10X5

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  • MELGAR_2022_0830_02_THREE_BRIDGES_12X8
  • MELGAR_2022_0830_03_GIRDER_BRIDGE_INNER_TRUSS_BRIDGE_12X8
  • MELGAR_2022_0830_04_THREE_BRIDGES_12X8
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Last edited by MELGAR

Here is a Bollman Truss Bridge which sits prominently on my layout.  This is a replica of a prototype bridge use on the B&O during the 1800s.  Designed by Wendall Bollman, this type of bridge was the first railroad bridge application in the US to be made of iron.    The B&O used about 100 of these bridges throughout its' system.  The last remaining example of this bridge sits two blocks from my house.  It's on the National Register of Historic Sites and a Civil Engineering Landmark.  9735AAA3-76A3-4858-8790-B836FB2018E0_1_201_aAC88437C-B82A-48DE-9366-D0B2D61E5307

The Bollman Truss bridge in Savage, Maryland carried the B&O RR across the Little Patuxent River.  Seen here in holiday lights.  Each holiday season the parks & recreation dept adorns the bridge in lights. 63A4944B-50A3-4733-B542-D1BB1FE8D3EC

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  • 63A4944B-50A3-4733-B542-D1BB1FE8D3EC

Here is a Bollman Truss Bridge which sits prominently on my layout.  This is a replica of a prototype bridge use on the B&O during the 1800s.  Designed by Wendall Bollman, this type of bridge was the first railroad bridge application in the US to be made of iron.    The B&O used about 100 of these bridges throughout its' system.  The last remaining example of this bridge sits two blocks from my house.  It's on the National Register of Historic Sites and a Civil Engineering Landmark.  9735AAA3-76A3-4858-8790-B836FB2018E0_1_201_aAC88437C-B82A-48DE-9366-D0B2D61E5307

The Bollman Truss bridge in Savage, Maryland carried the B&O RR across the Little Patuxent River.  Seen here in holiday lights.  Each holiday season the parks & recreation dept adorns the bridge in lights. 63A4944B-50A3-4733-B542-D1BB1FE8D3EC

Gorgeous bridge on your layout, Patrick.

Arnold

These are all awesome bridges. My approach is a bit different. I bought a single through plate girder, made a mold and started casting my own girders (for the number of pieces I need it would've cost me a fortune!). I added the internal plates/support cut from sheet plastic.

Here's some pics of the build under way. Yes....I have quite a bit more to do.20220505_16051520220505_160659

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We have here 3 views of "The Crossroads of Commerce".  The first is Grif Teller's painting for the 1953 PRR calendar.

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The second is one photo (I have taken hundreds) of the actual structure (Winter 2018).

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The final view is of the model bridge, which is the centerpiece of my PRR Panhandle Division.  The bridge was constructed by Custom Model Railroads / East Coast Enterprises to my rough specifications.  It measures 11' 9".  I designed the bridge piers, arch, and bridge shoes.  The Ohio River is 93" wide (2400 square inches) of 3/8" deep Woodland Scenics Deep Pour Murky water.

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George

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Here are a few pictures of my bridges.  I have scratch built all my bridges using my own designs.

This bridge spans Teddy-Bear Gap.  It's 6' across with an 0-72 radius. It consists of only 6 pieces of wood.  The sides and top are cut from 1/4" plywood and bottom 1/2" plywood.

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My cable stayed bridge is 7ft. long and the cables are weed-eater twine.

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The Yellow Cable Stayed bridge is only 6ft. long and is part of my portable O & S scale layout.

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This Truss bridge is made from 3/4" X 1/4' pine and is 5ft. long.

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This little one is only 20" long.

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A couple more, this one is 35" long

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This is my only gridder bridge.

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I was having such a good time making these I have some extras, so if anyone is interested in one let me know.

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Doug

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@Leroof posted:

bridging the gaps! Excellent topic fantastic photos!

btw, thank you Arnold for the mention on your most excellent Washing-machine bridge!  I did not build It. However it was an abandoned item in a antiques mall here in Camden. Naturally it had your name on it the minute I spied it! Lol.

That Erector Set Bridge is a **** good bridge. It stabilized the track in that section of my layout so my trains run better there. Arnold

Bridge No1 a trestle bridge to Hoffmann 's grain company and Sky line steel

Bridge  No.2 offset truss bridge (scratch built) over the main line south out of Scranton (actually to the hidden reverse loop back to the main)bridge 3bridge 2bridge 1Bridge No.3 standard girder bridge with the Scranton main and yard on top over  the 3 track entrance to Cedar Hill (New Haven)

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