La. Stat. tit. 33 § 3495
Current with operative changes from the 2024 Third Special Legislative Session
If the local improvement involves the use of machines, the governing authority shall prepare plans and specifications for the machinery and an estimate of its cost. The municipality may do the work itself if it can purchase the equipment and perform the work at a cost less than that set forth in any private bid.
La. R.S. § 33:3495