Stormwater Infrastructure Condition Assessment

Summary

This work has involved assessing the condition of Town-maintained stormwater infrastructure.  This has been pursued by Town staff with contractual support using protocol based on industry (AASHTO, PACP, NCDOT) standards. The different types of infrastructure include open channels, curb and gutter, and associated inlets, outlets/outfalls, and junction boxes. This does not include infrastructure owned by the State or private or other owners. It also does not include Stormwater Control Measures which are already being assessed and maintained as part of the Town’s regulatory responsibilities.

An assessment is needed because, unlike other Town assets and infrastructure (roads/transportation and facilities) it hasn’t been done and the condition of the system and its many assets is not known. Also, it is critical for planning for and prioritizing both larger (“capital”) and smaller stormwater infrastructure projects. This work is also being coordinated with other work and projects such as road and sidewalk maintenance and improvements.

When will it occur?

Inspection work was initiated in mid-2022. Initial inspections/assessments of priority larger road culverts was completed in the spring of 2024.  Assessments of open channels was initiated in 2023 and completed in the spring of 2024.  Several rounds of underground camera inspections (CCTV) were pursued in 2022-24 and will continue to be pursued going forward .

What will the specific results of the condition assessment be?
All stormwater infrastructure assets are being assigned a qualitative condition score. Considerable associated information is being obtained to guide the planning for and prioritization of future work, ranging from enhanced maintenance to larger projects. One of the benefits of pursuing this work is that stormwater infrastructure inventory is being improved. In general, it will be a foundational component of both operational and capital aspects of the Town’s Stormwater Program.

Who specifically is performing the assessment?
Stormwater staff are coordinating the assessment work with Sungate Design Group (Town Engineer) and VisionNC, a contractor with CCTV equipment and expertise.

What has been done so far?

You can visit here to see maps of the areas of town that have been assessed to date.

How will I know if you will be in my area/neighborhood/yard?

You can sign up for Town Alerts here to learn about this and any other town news. You can also follow the following Official Town Social Media Accounts for updates.

https://www.facebook.com/CarrboroTownGov

https://twitter.com/CarrboroGov

https://www.instagram.com/townofcarrboro/

https://www.instagram.com/townofcarrborostormwater/

If you have any questions or would like additional information please contact stormwater@carrboronc.gov or 919-913-2999.