U.S. construction spending fell for the third straight month in October as outlays on private projects declined, government data showed on Monday.

The Commerce Department said construction spending decreased 0.1 percent to $1.31 trillion.

September’s construction outlays were revised to show spending down 0.1 percent rather than being unchanged, as previously reported.

Economists polled by Reuters had forecast construction spending rising 0.4 percent in October. Construction spending increased 4.9 percent on a year-on-year basis.

In October, investment in private construction projects declined 0.4 percent after rising by the same margin in September. Private residential outlays fell 0.5 percent to their lowest since November 2017.

Residential investment contracted in the first nine months of this year, and is one of the risks to the economic expansion that is in its ninth year, the second longest on record.

Spending on private non-residential projects, which include manufacturing and power plants, fell 0.3 percent, the biggest decline since March, after rising 0.7 percent in September.

In October, outlays on public construction projects rose 0.8 percent after falling 1.5 percent in September.

Spending on state and local government construction projects rose 0.5 percent after a 1.1 percent drop the prior month, while federal construction spending bounced back 3.7 percent after sliding 6.4 percent in September.

Reuters (Reporting by Andrea Ricci and Melissa Bland)