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CWSRF: Funding Stormwater Infrastructure

A brown metal City of Lansing storm sewer cover
Environment, Great Lakes, and Energy

CWSRF: Funding Stormwater Infrastructure

creek surrounded by flowers
creek surrounded by flowers

Finance stormwater infrastructure with Michigan's CWSRF

Michigan's CWSRF is committed to being an innovative and flexible financing method for stormwater infrastructure projects.

View the CWSRF Factsheet

Stormwater financing options are flexible:

  • 20 year loan term with 0% interest for the first $5 million
  • 30 year loan term with 0% interest for the first $5 million.

After the first $5 Million the following rates apply:

Applicant Type 20 years 30 years
Standard Applicant 2.50% 2.75%
Overburdened Applicant 2.00% 2.00%
Significantly Overburdened Applicant 1.00% 1.00%

Stormwater drain with

What types of projects are fundable? 

Use of the CWSRF to finance a stormwater infrastructure project is an innovative way for a municipal applicant to complete important and impactful infrastructure work. 

pollinator garden

Ecosystem Protection and Restoration

The Plaster Creek Stewards plant a demonstration curb-cut rain garden in a Grand Rapids neighborhood.

Green Infrastructure 

Soil erosion and sedimentation control measures implemented at new constructed stormwater culvert

Erosion and Sediment Control

Storm Drain inlet for MS4 banner

Traditional Grey Infrastructure

Other eligible project types:

  • Traditional stormwater conveyance pipe, storage, and treatment systems
  • Sediment controls including filter fences, storm drain inlet protection, street sweepers, and vacuum trucks 
  • Green roofs
  • Permeable pavement
  • Infiltration basins
  • Rainwater harvesting collection, storage, management, and distribution systems
  • Wetland/riparian/shoreline protection and restoration
  • Establishment/restoration of urban tree canopy
  • Constructed wetlands
  • Bioretention/bioswales including rain gardens, curb bump outs, and tree boxes
  • Replacement of gray infrastructure with green infrastructure

 

pollinator garden Completed streambank stabilization and wetland restoration project funded through the SRF program in the City of Ann Arbor.

How to Apply

Potential applicants must follow the steps below to apply. All financing determinations are based on applicant eligibility, priority points, and availability of funds. Applicants should apply with the expectation the SRF is a loan program first and foremost.

1

Review Eligibility Guidance

Read more about Review Eligibility Guidance
2

Submit an Intent to Apply (ITA) form

A preview of the ITA form is available for review. The ITA form will close at 11:59pm on November 1, 2026.

Submit an ITA form
3

Get assigned a project manager

Once an ITA is submitted you will be assigned a project manager to go over next steps.

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