Agency TRANSPORTATION DEPT

Contractor University of Minnesota

SWIFT Contract Number 3000021615/ 3000087025 /

Project Name Implementation of Pavement Evaluation Tools

Project Number (if applicable) 99008WO2

Summarize purpose of the contract, including why it was necessary: Over the past decade, significant advances have been made on the quantitative assessment of pavements, an item that has critical role in both preventive road maintenance and QA/QC of pavement construction. Among the variety of devices used, the Falling Weight Deflectometer (FWD) and Ground Penetrating Radar (GPR) have emerged as the most promising tools for in-situ monitoring of subsurface pavement conditions. Despite the progress made on the use of FWD and GPR, the use of these devices in engineering practice is still limited due to: (i) complexity of data interpretation, and (ii) inherent limitations of FWD and GPR devices when used in a stand-alone fashion. To elevate nondestructive evaluation of local roads, this study aims to render the FWD/GPR road assessment both (i) accessible to field engineers through a user-friendly Graphical User Interface, and (ii) more effective by integrating the complementary nature of GPR and FWD information. For instance, the use of FWD requires prior knowledge of thicknesses of pavement layers, but this information can be obtained independently from a GPR test.

Project Duration

Start Date Tue, 11/01/2011 - 00:00

Original end date Sun, 06/30/2013 - 00:00

Actual end date Sat, 11/30/2013 - 00:00

Did project finish on time? Yes

Total billable hours utilized (if applicable) {Empty}

Contract Amounts

Original contract: $78000.00

Amendments {Empty}

Contract total $78000.00

Did project finish within budget? Yes

What was the funding source? 20% Trunk Highway/80% Federal

Is this a sole source contract? No

If this was a single source contract, explain why the agency determined there was only a single source for the services (if applicable) {Empty}

Evaluator Name Shongtao Dai

Evaluator Email Address Shongtao.dai@state.mn.us

Evaluate the contractor's timeliness Good

Evaluate the contractor's quality Good

Evaluate the contractor's cost On budget

Evaluate the contractor's overall performance Good

Would you engage the contractor's services again? Yes

Describe any negative action taken during the duration of this contract (i.e., termination, pursuit of suspension, etc.): {Empty}

Please rate the overall experience with the contractor 4 - satisfied