Indiana Code Title 8. Utilities and Transportation § 8-16-3.5-5

Sec. 5. Not-for-profit corporations proposing to build a bridge may assist the lessee, before the execution of a contract of lease, in the preparation and acquisition of plans, specifications, and estimates for the bridge, or the lessee may prepare or otherwise acquire plans and specifications for the bridge. All plans and specifications shall be submitted to agencies as designated by law to pass on plans and specifications for bridges, and the plans and specifications shall be approved by those agencies and the lessee in writing prior to the execution of the contract of lease.