Discussion and Consideration of Change Order #15 – Boomerang Corporation – North Park Road Improvements Project – Motion to Approve — K.4

AGENDA ITEM # K-4 AGENDA INFORMATION TIFFIN CITY COUNCIL COMMUNICATION DATE: May 1, 2026 AGENDA ITEM: Discussion and Consideration of Change Order #15 – Boomerang Corporation – North Park Road Improvements Project ACTION: Motion Background The City entered into a construction contract with Boomerang Corporation for the North Park Road Improvements project following the December 17, 2024, letting. The project includes roadway, storm sewer, and associated infrastructure improvements. During construction sequencing for Structure S-06 (cast-in-place), a need was identified to temporarily convey stormwater flows from an upstream detention basin into the newly installed 72-inch culvert to maintain system functionality and prevent backup during construction activities. Change Order No. 15 is a non-substantial change order that adds a temporary storm sewer pipe to maintain flow conveyance during construction of Structure S-06. The change is necessary to safely manage stormwater flows while work continues and does not impact the project schedule. Change Order No. 15 adds the following new item of work 20 linear feet of 18-inch HDPE storm sewer pipe to provide temporary flow conveyance from approximately Station 222+67 to Station 222+47. This temporary pipe ties the detention basin outlet located outside of the right-of-way into the new 72-inch culvert, allowing stormwater to bypass the S-06 construction area until permanent work is completed. Change Order Details: • Change Order Number: 15 • Type: Non-Substantial • Change Order Amount: $1,250.00 • Unit Price: $62.50 per linear foot • Contract Time Impact: None The unit price is below the average bid price ($69.00/LF) and well below the maximum bid price identified in the bid analysis. No contractor markup is included. Staff Recommendation Staff recommends approval of Change Order No. 15 to the North Park Road Improvements project contract with Boomerang Corporation in the amount of $1,250.00, increasing the total contract amount to $5,555,699.41. ATTACHMENTS: Change Order 1