28 November 2007

3D Challenge #017 - Bridge

Note: Please read the guidelines for participating in the challenge. The purpose of the challenge is to have fun and bring SketchUp users together and help each other learn and get better at using our favorite 3d modeling program. We will remove comments that are objectionable or offensive.

This week's challenge:


This week we are going to model a bridge. Theoraticaly, a bridge is a built structure to span a physical obstacle like a gorge, valley, road, railroad track, river or body of water for example. In reality even a log fallen across a river could be considered to be a bridge. This challenge you are free to create your own obstacle to span. When choosing your bridge to model, also consider all the other types of bridges beside the most well known suspension bridge. All over the world there are many examples of beautiful bridges made from wood, stone or cast iron instead of steel and other present-day hightech materials. Those old bridges often have loads of interesting construction or decoration details which will really test your sketchup skills.

Good luck ALL!

3d Warehouse tag: 3d challenge 017

Due Date: Wed, Dec 5 (Challenge closed)

Click here to see the submitted models for this challenge.

Winner (2 Models)
Venetian Bridge by COSEDIMARCO
Pnote dell'Accademia (1933) by COSEDIMARCO)

2 nd Place
Shasta River Bridge by Don East

3 rd Place (2 Way Tie)
Covered Bridge by Bill Breen
Wooden Truss Bridge by Tom (Cartographer_Tom)

Congrats to ALL !!!!


  1. General notes:

    Remember to post a link to your model in the 3D Warehouse on the blog, so everybody knows you submitted it. You can use the hyperlink code creater on the frontpage of the blog to create the code for a hyperlink in your message. Copy this code and paste it in the comment box on the place where your want the hyperlink to be. More information about participating with the challenges and uploading models to the Warehouse can be found in the "3D Challenge participation manual" in the useful links section on the frontpage of the blog.

    Challenge suggestions are welcome to be placed on the blog. Items will be noted and compiled on the moderator’s list. At that point, the initial comment for the suggestion may be deleted so as to maintain a streamline challenge thread for use of posting entries for the challenge and comments to models. Challenge suggestions have always been welcomed and taken under consideration.

    Good luck with the challenge...

  2. Here's what I made for this Challenge. Since my models are not intended as official submissions, I hope you all will be kind enough to forgive the fact that I made this model last week, before the actual Challenge started.

    Oz Creek Covered Bridge

    And here's the Picasa Album

  3. For 3D Challenge #017 I drew a simple bridge used for landscaping. It's very detailed and i hope you like it.

    Simple Landscaping Bridge

  4. Here's a simple little bridge, the kind we all cross, and never really notice.

    Canal Crossing

    This is the first of a few that I'm working on, this challenenge is way to fun for just one model.

  5. Howdy All, This is the Shasta River Bridge in is located in Northern California. I have placed it in Google Earth and an not happy with the way it has fit into the terrain. So I'm still working on it. Any suggestions would be appreciated.
    Shasta River Bridge
    Don Easts

  6. Hi to everyone,

    This is what I'm workin on, a typical bridge from my hometown

    Bridge Image Album

  7. Hi all,

    Here's my model for this challenge. I created a metal bridge for a railroad crossing a canyon. I tried to maximize the use of components in this model. The bridge itself takes only half of the current filesize, the landscape around the bridge takes the other half.

    Model at the warehouse

    @Jeff meyers: I noticed you allready made a lot of bridges. I would like to suggest to focus more on one bridge and try to push your skills to the maximum on that model. Remember that these challenges are more about model quality then quantity.

    @all: Very nice models so far. I'm glad to see that people also tried other bridge types beside the suspension bridge.


  8. here's number 2 for me, it's an old style truss bridge. (that may or may not be engineered correctly) I just modeled what was in my head.

    Interesting that it is such low file size, when it's massive. but I guess it's really only about 4 different objects.


  9. What's with Jeff Myers' entries? Are they all going to be entered?

  10. Here's my model for the challenge.
    It doesn't really exist. It's just a mix of elements from lagoon city bridges.

    Venetian Bridge model

    Venetian Bridge Album

  11. Tohickon Aqueduct, Point Pleasant, PA
    I started off doing the Tower Bridge in London, but noticed there were already some really nice models of it out in the warehouse. Same for a lot of other famous bridges. So I picked something local to my area, that had some structural interest. I figured this aqueduct would be a unique entry.

    The Tohickon Aqueduct carries the Delaware Canal over Tohickon Creek. The current wooden structure, built in 2001, replaced a steel aqueduct that failed in 1931. It was designed to look like a covered bridge. The structural design is a Burr Truss, often used for covered bridges. This design combines arches with a multiple kingpost truss.

    I modeled the structure for the bridge in detail. Flip through the various scenes to see the substructure. The model is based on photos I found, as well as vague memories from seeing the aqueduct under construction in 2001, plus a bit of imagination to fill in the blanks.

    Sketchup Model - Tohickon Aqueduct
    Truss Close-up
    Sub-structure (sheathing removed)

    One of the things I like about the challenges, is what I learn about the subjects each week. Last week staplers, this week bridges.


  12. Here's my second entry
    Ponte dell'accademia

    If you have problem handling model, 'cause it has a lot of faces, please visit the Image album.

    Brief history of the bridge from Wikipedia:
    The Ponte dell'Accademia is one of only three bridges in Venice to span the Grand Canal. It crosses near the southern end of the canal, and is named for the Accademia galleries.

    First suggested as early as 1488, a bridge was not constructed until 1854. The original steel structure, designed by Alfred Neville, was demolished and replaced by a wooden bridge in the 1930s, despite widespread hopes for a stone bridge.

    The second bridge, in a dangerous condition, was razed and replaced by the present bridge, of identical construction, in 1985.

  13. I just modeled two covered bridges two weeks ago and saw that the current challenge was on bridges so thought I'd throw them in.

    Medora Covered Bridge

    The next one didn't have detailed satellite photography so I had to stitch my own together from other sources and hover a copy of the ge terrain over the current terrain and apply the new satellite imagery, this gave me a starting point to model and place my bridge.

    Teegarden Centennial Covered Bridge

  14. I've tried to upload my bridge, and I don't even get a dialog box. The document just sits there as the beachball spins.

    I thought maybe the file was too big, but it's only 1.5 megs. Can anyone suggest a solution?

  15. Hello Randy

    1.5 Mb is not too large. Sometimes the warehouse is very busy and this happens. Try to upload again in a little while.

    Mod Team Member

  16. This Bridge is pretty clever i think, it's the word "bridge" in stone and an actual bridge built over it. Check it out



  17. Using KT fake lighting in the bridge worked out good.

  18. My entry

    Stone Bridge

    I started out planning on modeling the Sio Se Pol bridge, but decided to alter the design some in the interest of time. It still gets the basic idea across, with two levels, one of which "floods" with high tide, but is occupied during the low tide, and the other of which is more private. In any case, suggestions are always welcome.

  19. Bill Breen
    First upload was to dark to see. So I reloaded it to see if it lightened up after changing shadow setting.

  20. The following model was Created by Randy and uploaded to the warehouse by me due to problems he encountered during upload.

    Newcastle-Tyne Bridge
    Model by Randy

    Pics and Video

    Another Pic

  21. The following 2 models were found in the warehouse with proper tags and within the challenge dates.

    Curved Form Bridge by Maurice S

    1-A1/Juneau Bridge by FlagFreak


    The 2 models created by jw_n_mo (Josh Wilson) were created prior to the challenge dates and will not be included in the voting.


    The models are very nice, but the challenge rules do not allow for any premade models or components. I am sorry that these can't be entered, but then we would have to allow other models made outside of the challenge guidelines.

    Please join us in the next challenge.


  22. http://picasaweb.google.com/SirWilliamBreen/CoveredBridge,
    The above is my link to my pictures. Maybe someone could till me why the following occurs. If I use the above and search using Googles address bar, it does not go to my pictures. But if I use Internet Exporer address bar, it goes to my pictures. Am I doing something wrong, E-Mail 02281944@neo.rr.com

    Bill Breen, Thank you

  23. http://picasaweb.google.com/SirWilliamBreen/CoveredBridge, Copy and paste from my entry.