April 30 (Reuters) - Caterpillar CAT.N reported a lower first-quarter profit on Wednesday, hurt by softer demand due to economic uncertainty.

The industrial giant had benefited from former President Joe Biden's 2021 infrastructure law, a $1 trillion spending package that boosted demand for construction equipment.

However, that momentum has started to slow as project starts ease and private sector investment shows some hesitancy amid higher interest rates.

Adjusted profit per share fell to $4.25, compared with $5.60, a year ago.