This project will test probabilistic and deterministic models of Munition Mobility Unit (MMU) at Culebra, Puerto Rico. The goal of this project is to characterize MMU migration and burial over different bottom types (when possible), identify the minimum inputs needed for the model execution; the inputs that may be readily available to a site manager; and to identify the fidelity of predictions of migration and burial of MMU.

The Unexploded Munitions Expert System (UnMES) provides munitions mobility and burial predictions for site and resource management in munitions impacted underwater environments (improved through MR21-5207). UXOmob is a software package developed for Offshore Construction Industry (improved through MR21-1081). The system is able to predict scour burial, mobilization, and burial and re-exposure by morphodynamics and is prepared for impact burial and object migration. MMUs are fabricated to match the geometric characteristics of expected unexploded ordnance (UXO) in a particular study area. MMUs are outfitted with acoustic tracking tags for geolocation and positioned using a global positioning system-mounted surface float or unmanned surface vessel.

At the project culmination the following will have occurred:

1. Developed MMUs with characteristics similar to UXO found at Culebra;
2. Identified initial field conditions and deployed MMUs;
3. Routinely quantified MMU position and burial depths;
4. Provided assessment of performance metrics of MMU localization and UnMES/UXOmob predictions;
5. Worked with site managers to identify ease of use and utility of UnMES/UXOmob output for site decision making;
6. Presented the findings in a demonstration project report and agreed on a pathway to transition UnMES/UXOmob into operation;
7. Provided numerous documents and videos as part of the technology transition, and
8. Worked with U.S. Army Corps of Engineers to incorporate UXOmob into their workflow for long term usability (A stand-alone task).

(Anticipated Project Completion - 2029)