The Interstate 93 widening and other projects funded by federal aid continued.
“The New Hampshire Department of Transportation expects little or no impact in the short term,” spokesman Bill Boynton said. “If the shutdown drags out, we may start to feel the effects at some point.”
An advisory issued by the Federal Highway Administration said none of its 2,914 employees faced furloughs because appropriations come through contract authority.
The U.S. Postal Service said mail delivery would continue.