Download MERL

Latest Full Installer

MERL 2023.5

MERL 2023.5 Setup File

This is the full MERL installer including SQL Server Express. This installer is silent install compatible.

NOTE: Windows 8 is no longer supported by Microsoft. This version will NOT install on Windows 8. Windows 10 or newer is required.

MERL 2023.5 Changelog
  • General:
    • SQL 2012 is no longer supported. MERL will no longer allow login to a SQL 2012 database. DO NOT UPDATE to this version unless your SQL Instance is 2014 or newer.
  • New Features:
    • Added support for SQL 2022. Note: Supported SQL Versions include 2014, 2016, 2017, 2019, and 2022.
  • Average Unit Prices:
    • Updated Average Unit Price data for 2020 Spec Year (including 1/1/2021 through 3/31/2023).
  • Export:
    • Fixed exception exporting to Field Manager when one or more items have zero quantity.
  • Project Estimator:
    • Fixed bug merging estimates which would error out the Contract containing the estimate were selected rather than the estimate.
  • Pay Item Codes:
    • Updated the 2020 Pay Item Codes list (as of 5/5/2023).
    • Fixed bug in Estimate History which would not include history from a non-default Estimate.
  • Vendors:
    • Updated MDOT Approved Vendor List.


MERL is available at no cost to any Michigan local agency and their consultants. It is licensed only for use on Michigan projects.