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Secretary Doug Burgum@SecretaryBurgum Ā· May 29, 2026

🧵The @nytimes has TDS and is ignoring the facts. The final materials for the 2.5 miles worth of expansion joints at…

9 tweets1 min read♄ 10.3Koriginal

Summary

The Trump administration is replacing failed Obama-era expansion joints at the Lincoln Memorial Reflecting Pool with new leak-proof materials made of urethane-impregnated foam and polyurea caulk. A full-scale test section passed recent testing successfully, and installation of the remaining expansion joints is scheduled for completion this weekend.

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  1. #1

    🧵The @nytimes has TDS and is ignoring the facts. The final materials for the 2.5 miles worth of expansion joints at the Reflecting Pool passed testing flawlessly last week and this week. Installation is currently underway for one full-scale expansion joint, with the installation of the remaining four expansion joints scheduled for tomorrow and Saturday.

  2. #2

    The expansion joints installed under Obama, who wasted millions upon millions of taxpayer dollars, have catastrophically failed, leaking 16 MILLION GALLONS of water per YEAR and costing hard-working taxpayers hundreds of thousands of dollars.

  3. #3

    .@POTUS isn't just making the Reflecting Pool Beautiful Again, he's fixing the Memorial's disastrous, Obama-era errors that failed at the cost of millions for the American taxpayer.

  4. #4

    After ripping out industrial-scale dumpsters worth of decaying and failing expansion joints, the Trump administration is now installing industrial-grade, leak-proof materials for the expansion joints. Anyone familiar with large-scale construction projects would understand materials are tested to ensure they perform effectively before being deployed at scale.

  5. #5

    The massive slabs that form the bottom of the pool, which is much longer than the Empire State building, expand and contract based on the temperature. Specialized materials are necessary for the expansion joints to handle the expected movement while not breaking, cracking or leaking. This is something the Obama administration didn’t understand.

  6. #6

    After consultation with the Army Corps of Engineers Engineering Research and Design Center, a 6-foot test sectionĀ for the final expansion joint materials was installed last week before the recent rain and cooler weather. The test section passed testing with flying colors and is in perfect conditionĀ at this time. Notably, during the testing with the cooler nights last week, the test joint expanded more than 1 inch, but the material in the expansion joint remained perfectly intact, providing a perfect seal to prevent leakage. As we know @POTUS is an expert builder.

  7. #7

    The final system for the expansion joints involves filling the 2.5 miles of joint expansion with urethane-impregnated foam, which is then covered by urethaneĀ caulk. That caulk is allowed to set overnight and is then coated with a very flexible and stretchy polyurea - the final layer in the expansion joint system. These materials will handle the 1-2" of movement these joints experience from summer to winter without any issues.

  8. #8

    While the @nytimesĀ continue to write falsehoods and refuses to write accurately on what is happening at the pool, the expansion joints will be perfectly sealed to prevent leaking, in marked contrast to the failed, exorbitantly priced Obama-era expansion joints.

  9. #9

    Bottom line: President Trump is the Builder in Chief and has made D.C. Safe and Beautiful ahead of our nation’s 250thĀ celebration. This administration is doing this project at a fraction of the cost, at 10Ā times the speed. Under @POTUS we are fixing the Reflecting Pool for good. This should be a model for all cities across America.