DEPARTMENT: Transportation
FILE TYPE: Consent Action
TITLE
title
Authorization To Execute Second Contract Amendment With Short Elliott Hendrickson Inc. For Continuing Final Design Services For County State Aid Highway 42 (145th Street) At Trunk Highway 52 Interchange Improvements In City Of Rosemount, County Project 42-174
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PURPOSE/ACTION REQUESTED
Authorize execution of the second contract amendment with Short Elliott Hendrickson Inc. (SEH) for final design services for County State Aid Highway (CSAH) 42 (145th Street) at Trunk Highway (TH) 52 Interchange Improvements, County Project (CP) 42-174.
SUMMARY
To promote a safe and efficient transportation system, Dakota County, the City of Rosemount, and the Minnesota Department of Transportation (MnDOT) are advancing CP 42-174 to improve the existing CSAH 42/TH 52 interchange (Attachment: Project Location Map). Planned improvements include ramp signalization, turn-lane additions, and geometric modifications to enhance safety and operations. Construction is scheduled for 2026.
By Resolution No. 24-384 (July 30, 2024), the Dakota County Board executed Contract DCA-21938 with SEH for preliminary and final design services.
By Administrative Change (December 2025), the County approved the first contract amendment to extend contract duration through December 31, 2027.
Need for Amendment
The original consultant scope did not include a complete geotechnical field investigation or preparation of a formal Materials Design Report (MDR). The intent at contract execution was to negotiate a separate amendment once the level of required geotechnical effort was better understood.
Through design development, the following additional tasks were identified as necessary:
1. Comprehensive geotechnical field investigation, including additional borings and pavement cores - $18,000.
2. Collection of soil and groundwater samples and associated laboratory testing - $21,825.
3. Evaluation of subsurface conditions related to pavement design, subgrade support, groundwater, and constructability - $1,831.
4. Development of design-level geotechnical and pavement recommendations - $10,800.
5. Preparation of a complete MDR - $2,488.
Total = $54,944
Completion of these tasks will ensure that final design meets project requirements, MnDOT design standards, and construction feasibility expectations.
SEH submitted a scope and fee request totaling $54,944, which represents work outside the original scope and exceeds the existing contract amount of $349,340 (Attachment: Additional Tasks Justification).
RECOMMENDATION
recommendation
Staff recommends authorizing a second contract amendment with SEH in the amount of $54,944, for a total amended contract not to exceed $404,284.
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EXPLANATION OF FISCAL/FTE IMPACTS
The adopted Capital Improvement Program includes $6,222,691 for CP 42-174 across several funding sources, including CSAH, local City contributions, and Dakota County Transportation Sales and Use Tax revenues.
Sufficient funds exist within the project budget to accommodate the additional $54,944 needed for this contract amendment.
|
Funding Source |
Total Budget |
Available Budget |
|
City of Rosemount |
$795,501 |
$725,849 |
|
State (TED) |
$2,400,000 |
$2,400,000 |
|
Transportation Sales and Use Tax |
$3,024,158 |
$2,345,337 |
|
Transportation Fund Balance |
$3,032 |
$151 |
|
Total |
$6,222,691 |
$5,471,337 |
☐ None ☒ Current budget ☐ Other
☐ Amendment Requested ☐ New FTE(s) requested
RESOLUTION
body
WHEREAS, Dakota County, in partnership with the City of Rosemount and the Minnesota Department of Transportation, is progressing with County Project (CP) 42-174 to improve the interchange at County State Aid Highway 42 and US Trunk Highway 52; and
WHEREAS, project improvements include interchange geometry modifications, ramp signalization, and associated design work intended to enhance safety and mobility; and
WHEREAS, by Resolution No. 24-384 (July 30, 2024), the Dakota County Board executed Contract DCA21938 with Short Elliott Hendrickson Inc. (SEH) for design services in an amount not to exceed $349,340; and
WHEREAS, by Administrative Change in December 2025, the County extended the contract term through December 31, 2027; and
WHEREAS, staff identified the need for additional geotechnical investigation, laboratory testing, engineering analysis, and preparation of a Materials Design Report, which were not included in the original scope of work; and
WHEREAS, SEH submitted a cost proposal of $54,944 for performing the additional design tasks, and staff has reviewed and negotiated the cost and finds it acceptable; and
WHEREAS, sufficient funds exist within the adopted budget for CP 42-174 to support the contract amendment.
NOW, THEREFORE, BE IT RESOLVED, That the Dakota County Board of Commissioners hereby authorizes the Assistant County Manager for the Physical Development Division to execute a second contract amendment with Short Elliott Hendrickson Inc. in the amount of $54,944, resulting in a revised total contract amount not to exceed $404,284, subject to approval by the County Attorney’s Office as to form.
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PREVIOUS BOARD ACTION
24-384; 7/30/24
ATTACHMENTS
Attachment: Project Location Map
Attachment: Additional Tasks Justification
BOARD GOALS
☐ Thriving People ☐ A Healthy Environment with Quality Natural Resources
☒ A Successful Place for Business and Jobs ☐ Excellence in Public Service
CONTACT
Department Head: Erin Laberee
Author: Imran Ahmed