File:America's Highways 1776–1976 - page 331a.jpg
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Summary
| Description |
English: This machine was used in 1922 to test the impact of solid rubber tires on test pavement sections. By raising the wheel and suddenly dropping it at impact forces comparable to truck traffic on the roads, comparative pavement design strengths could be determined. |
| Date | |
| Source | https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/337 |
| Author | Federal Highway Administration |
Licensing
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This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. | 
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:39, 4 January 2023 | | 1,043 × 633 (397 KB) | Sp1nd01 | Uploaded a work by Federal Highway Administration from https://en.wikisource.org/wiki/Page:America%27s_Highways_1776%E2%80%931976.djvu/337 with UploadWizard |
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