Final FY25 Adopted Budget

2024 2028 thru

Capital Improvement Plan 2024-2028 City of Iowa City, Iowa

PUBLIC WORKS

Department

Contact Tim Wilkey

One Phase

Type

V3175

Project #

20 years

Useful Life

Project Name Wastewater Treatment Facility Imp 2022

Wastewater Treatment

Category

GRANTEE NONE

PLAN None

Critical (1)

Priority

MATCH % NONE

TIF DISTRICT None

Active

Status

Total Project Cost: $536,000

Description Place Parshall flume(s) directly downstream of the grit tank channel isolation valves including ultrasonic measuring. This will require channel modifications, flume and sensor installation and programming into the headworks PLC.

Justification Flow measuring was changed from a Parshall flume to an in-channel area velocity sensor/meter in the last plant upgrade. That sensor/meter failed and subsequent efforts at flow measurement lack staff confidence in being greater than 80% accurate. Parshall flumes have been used in the wastewater industry for decades with 99+% accuracy and confidence.

Prior

Expenditures

Total

2024

2025

2026

2027

2028

CONSTRUCTION

285,000

285,000

251,000

285,000

285,000

Total

Total

Prior

Funding Sources

Total

2024

2025

2026

2027

2028

WASTEWATER FUND

285,000

285,000

251,000

285,000

285,000

Total

Total

Budget Impact/Other This project will reduce operating and maintenance cost through the rehabilitation of older equipment. The annual savings is less than $10,000 per year.

615