Rapid City awards $342,810 drainage-basin modelling contract
City of Rapid City Public Works, South Dakota · Meeting date: October 27, 2026 · Published: October 28, 2026
Rapid City’s Public Works Committee has authorised Avid4 Engineering to provide hydrology and hydraulic modelling for the Ennen-Morris-Radar Hill Road Drainage Basin Design Plan. The contract is the largest water-related action approved at the committee’s 27 October meeting.
Key points
- The committee approved a $342,810 professional-services agreement with Avid4 Engineering.
- The work covers hydrology and hydraulic modelling for the Ennen-Morris-Radar Hill Road Drainage Basin Design Plan.
- The assignment is identified as Project 2897 and CIP 51464.
- The approval authorises the mayor and finance director to sign the agreement.
Full report
Rapid City has moved forward with technical planning for the Ennen-Morris-Radar Hill Road Drainage Basin, approving a $342,810 agreement with Avid4 Engineering for hydrology and hydraulic modelling services.
The Public Works Committee approved the agreement on 27 October as part of its consent calendar, authorising the mayor and finance director to execute the professional-services contract. The work is listed as Project 2897 under CIP 51464 and will support the Ennen-Morris-Radar Hill Road Drainage Basin Design Plan.
The modelling contract was the principal stormwater-related decision at the meeting. Hydrologic and hydraulic analysis will be undertaken specifically for the drainage-basin design plan, rather than through a construction award.
In a separate water-system action, the committee also approved a $48,000 acquisition offer and agreement with ROCKSD5, LLC for a permanent water-main easement. No further discussion was held on either water-related consent item before the committee approved the calendar.
This summary was generated by AI based on the source document and may contain errors.
Source: Public Works Committee, City of Rapid City Public Works