20' Connex Contaier Box Wanted
Printed From: Rocket City Rock Crawlers
Category: Classified Ads
Forum Name: Wanted!
Forum Description: Ads asking for stuff....
URL: http://www.rocketcityrockcrawlers.com/forum/forum_posts.asp?TID=13423
Printed Date: 27 March 2026 at 12:18am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: 20' Connex Contaier Box Wanted
Posted By: 98TJ
Subject: 20' Connex Contaier Box Wanted
Date Posted: 30 January 2025 at 7:13pm
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Need a cheap 20' connex container box, condition is not important. Need it to use as a culvert over a creek.
------------- 1998 TJ 4.0 5spd Atlas 36" Swampers RE4.5 ARB's 44/44 2015 JK Rubicon, mostly stock |
Replies:
Posted By: alabamatoy
Date Posted: 04 February 2025 at 8:35am
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Be careful. The conex are not strong in compression like that - they are designed to have the load on their frame where the lifting hooks are. Loading them in between (like driving over one) they are not very stout. Kinda like a beer can, you can stand on one, but tap the skin with your finger when its loaded and it will collapse. ------------- "If you didnt buy your 1st gen 4Runner new, then YOU are a newbie!!" BRC Life Member |
Posted By: 83K10
Date Posted: 04 February 2025 at 10:49am
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Doc is right. Unless its foor traffic or atv traffic, I would do something else. Not sure they would hold up to a jeep on top of them for long term without extra reinforcement. The doors being closed are also part of the structure for them. I've also never seen a cheap one as folks tend to patch them. I've literally been looking for one or two for years at this point.
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Posted By: 98TJ
Date Posted: 06 February 2025 at 12:42pm
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I have seen some nice culverts/bridges made using those connex boxes. There is a very nice one on the road from Grays Chapel to our cabin. The problem is that usually they also place a reinforced concrete slab on top of the connex box to carry the heavy loads. There is no way to get a concrete truck back to where this thing would be going. The other thing they do is flip them upside-down and use the floor as the roof since the connex floor is stronger. Also, it will have to support some heavy loads; like a triple axle dump truck and a 75,000 lb excavator. I think they originally priced a 20' section of 6' corrugated steel storm drain pipe and thought the connex box would flow more water and 50% cheaper. After adding in a reinforced concrete slab to the cost of the connex box, there is no savings there. Their design seems to have evolved back to using a 20' piece of 6' storm pipe. Larger diameter of pipe require more dirt/crushed stone on top of it to distribute the load and prevent crushing the pipe, generally 1' for small pipe carrying normal loads and at least 1/3 the pipe diameter for larger pipe. I would want to use more cover than that since it will have to carry heavy loads and the roads deteriorate pretty quickly up there. I suggested using two 36" or two 48" pipes instead of the 72". Several land owners are paying for this, so its "design by committee".
------------- 1998 TJ 4.0 5spd Atlas 36" Swampers RE4.5 ARB's 44/44 2015 JK Rubicon, mostly stock |
Posted By: 83K10
Date Posted: 07 February 2025 at 7:22pm
| Using two 36 in or 48 in culverts seems like a much better idea. It's easier to deal with 3 or 4 ft culverts bs the 6 ft. Takes long straps to go around them. The connex are 8 ft wide so that's a lot of span for that much weight. |
Posted By: 98TJ
Date Posted: 27 February 2025 at 12:29am
 Here is that storage container bridge near Grays Chapel. It has a thick reinforced concrete slab on top of it. ------------- 1998 TJ 4.0 5spd Atlas 36" Swampers RE4.5 ARB's 44/44 2015 JK Rubicon, mostly stock |