LINCOLN, Neb. (AP) — Construction workers have begun to renovate the Nebraska statehouse’s four courtyards in preparation for the installation of several fountains.

Fountains were not a part of the original designs of the nearly century-old courtyards, according to Capitol Administrator Bob Ripley. So construction, such as laying down pipe, for the fountains poses many logistical challenges.

The addition of fountains and a set of murals had been delayed during the Great Depression. The murals were later added to the statehouse in 1996.

Ripley says the $2.7 million installation project should be done by the end of the year, in time for Nebraska’s 150th birthday.