2024/25 SOUTH 16TH STREET ROADWAY WIDENING - CHANGE ORDER NO. 1
This project included widening South 16th Street from two lanes to four lanes between University Boulevard and the Veterinary Medicine Trail, and converting the roadway to an urban cross-section with curb and gutter. The project also included modifications to the existing box culvert at Worrell Creek and construction of multi-use trails along both the north and south sides of South 16th Street between University Boulevard and the Veterinary Medicine Trail.
On June 10, 2025, the City Council awarded a construction contract to Con-Struct, Inc. of Ames, Iowa, in the amount of $3,625,832.10.
Change Order No. 1 (this Council Action), in the amount of $97,642, included additional work necessary for temporary lane closures that were required to meet staging requirements so the road could be opened to traffic prior to the 2026 Iowa State Football season. The change order also includes additional work to remove a previously unknown abandoned steam pipe, and imported topsoil for the project. The additional topsoil was required because there was not enough topsoil available on site prior to the widening to restore all disturbed areas with six inches of topsoil in accordance with the project specifications.
The project is currently being prepared for an Iowa Department of Transportation (DOT) audit before final acceptance by the City of Ames.
A summary of the estimated revenues and expenses for this project are shown below.
| Funding Source | Available Revenue | Estimated Expenses |
| 2023/24 G.O. Bonds | $ 325,000 | |
| Stormwater Utility Fund | $ 250,000 | |
| Previously Issued Bonds | $ 741,000 | |
| 2024/25 STBG Funds | $ 2,814,000 | |
| 2022/23 Unobligated G.O Bonds | $ 100,000 | |
| Construction | $ 3,625,832.10 | |
| Change Order No. 1 (This Council Action) | $ 97,642.00 | |
| Engineering/Contract Administration | $ 450,000.00 | |
| TOTAL | $ 4,230,000 | $ 4,173,474.10 |
- Approve Change Order No. 1 in the amount of $97,642 for the 2024/25 South 16th Street Roadway Widening project.
- Direct staff to pursue changes to the project.
The proposed change order is necessary to address additional work resulting from construction scheduling and coordination with Iowa State University's academic calendar and football season, as well as unforeseen field conditions encountered during construction. Staff has reviewed the change order and believes it is appropriate. Therefore, it is the recommendation of the City Manager that the City Council adopt Alternative No. 1, as described above.