Shown above are Coast Guard indicative designs of a river buoy tender WLR), inland construction tender (WLIC), and inland buoy tender (WLI).
The Congressional Research Service has updated their two page explanation of the Waterways Commerce Cutter (WCC) program on Feb. 11, 2021.
Some highlights:
- Three classes, WLR, WLIC, and WLI, will replace 18 WLRs, 13 WLICs, and 4 WLIs in nine classes with an average age of 56 years.
- Single construction contract for WLRs and WLICs expected to be funded in FY2022. Separate contract later for WLIs. Final numbers not yet decided.
- First to enter service 2025
- All WCC vessels to be delivered by 2030.
Chuck Hill's CG Blog 
Obviously needs done. I’d love to better understand all they do.
UPDATE to the draft specs. Includes some basic plans.
“The Waterways Commerce Cutter (WCC) Program received significant feedback from its Request for Information on its Draft RFP released in July 2020. Based on that feedback and additional USCG analysis, the USCG expects to make several major changes that will be incorporated in its RFP release.
“This Special Notice releases those major changes to the Technical Data Package and are reflected herein. There are many other changes to the Technical Data Package that will be reflected in the final RFP release.
https://beta.sam.gov/opp/c70a1b3a7fbf44a9b5152aa8b2cb340d/view?keywords=70Z02321SNPRT00300&sort=-relevance&index=opp&is_active=true&page=1
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An updated version of this report was issued March 23, 2023. It is accessible through the link included in the original post.