Pavement Design | LCCA Projects
District 8 LCCA Projects
| Project Number | Route | Letting Date | Posted Date | Comments End | Document Links | Comments |
|---|---|---|---|---|---|---|
| 4102-27 | US 14 | 9/25/2026 | 4102-27 Documents | 4102-27 Comments |
District 8 Comments
SP 4102-27, US 14, Letting date 09/25/2026
Comment from Daniel Labo, Concrete Paving Association of Minnesota, djlabo@cpamn.com, 10/28/2024
Please analyze an alternative 35-year concrete design for white-topping. By my calculations: A 6" thick white-topping (which is commonly build by many counties, such as McLeod), would work well here, and it would be the low LCCA for this project (the CIR net present value would be appr. 105.3% more than 6" concrete). Will the district analyze this option to confirm? What are the results? If within 10%, would the district please proceed with concrete, or at least alternate bid?
Pavement Design Engineer response, 11/25/2024
I analyze a 7” doweled 35-year UBOL with 4” HMA mill for alternate #3 and the Present Net Worth was 154.2% of Low Cost. I analyze a 6” 35-year Whitetopping with 4” HMA mill for alternate #3 and the Present Net Worth was 126.1% of Low Cost.