Local Government Requests UXO Clearance from Army

Waikola, Hawaii Hawaii County Mayor, Harry Kim, sent a letter to the Deputy Assistant Secretary of the Army for Environment, Safety and Occupational Health (ODASA ESOH) asking for assistance in adjusting the UXO clearance schedule for portions of the Former Waikoloa Maneuver Area. The request was made to accommodate the construction of affordable housing units.

According to the letter, the US. Department of Housing and Urban Development (HUD) has put restrictions on new funding due to the potential for UXO in the area. The funding restriction essentially stopped development projects in the area.

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Next Time Stick With a Garden Gnome

Buena Vista, Colorado When a homeowner dug up a WWII-era 57mm armor piercing (AP) projectile over five years ago, he decided to place the munition in his garden as "yard art." Recently, however, reports of the unusual d├ęcor reached EOD specialists from Fort Carson who responded immediately to remove the UXO to a nearby ranch for detonation. UXO finds are common in the area which was used as a training ground for the 10th Mountain Division based in nearby Camp Hale during WWII.

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Bridge Reopened After Grenade Removal

Limerick, Ireland Army EOD rendered safe a WWI-era hand grenade which had forced the closure of Thomond Bridge in Limerick. Experts removed the device from the River Shannon during low tide.

Two EOD technicians were escorted by members of Limerick Marine Search and Rescue Service (LMSRS) by boat and a jet ski to location of the grenade underneath one of the bridge's archways. The UXO was then transported from the scene to an of-site location for a controlled explosion.

This is not the first UXO find in the area as several cannonballs were also discovered in the area during a recent bridge maintenance project.

Time Bomb Prompts Bomb Scare

New York City, New York The NYPD Bomb Squad was called to a Manhattan construction site when workers dug up an old aerial bomb. After further investigation, it was determined that the ordnance was not live. The bomb was actually purposely buried on-site as part of a stunt pulled by a nightclub back in the '80s. The inert bomb, reportedly purchased a military surplus store, was filled with documents and mementos to serve as a time capsule.

Although the public and the bomb squad were never at risk as the item was inert, the 30 year old stunt certainly cost the city in terms of resources. It also inconvenienced businesses and residents in the area.

TimeCapsule

Ft. Riley EOD Dispose of Buried UXO

Topeka, Kansas Army EOD from Ft. Riley responded to dispose of an ordnance found buried underground near a police impound lot in Topeka. The UXO, initially uncovered by utility workers, was safety removed and disposed of by the EOD unit. The exact type of round was not reported.

3D Visualization Techniques For UXO Risk Evaluation

The following article is by UXOInfo.com Guest Author Maarten Bosma

The Netherlands Currently there is a very unique UXO clearance project on-going at a former WWII era mock German airport that was setup to support munitions training during the war. The site is one of several former airfields in The Netherlands that contain UXO from previous training exercises.

A magnetometer survey was completed at the site to identify buried UXO including a magnetometer survey conducted from the ground surface as well as magnetometer probing to get an accurate picture of the number, size and locations of UXO at the site. Magnetometer probing is a process by which a specialized magnetometer based probe is pushed through the ground to gather readings in real time along the z-axis.

This process provides for a more accurate picture of the subsurface anomalies at the site. The image to the right shows the implementation of magnetometer probing at a UXO site.

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For the mock German airfield site, a grid size was 2.5 meters by 2.5 meters was selected for the magnetometer probing with the maximum average depth of each probe reading ranging between 8 to 10 meters or until the probes reached a sand layer with a density less than 10 MPa.

The survey team developed a 3D visualization based upon the magnetometer data using Voxler software to plot the calculated size, depth, and location of UXOs buried at the site. A sample of a 3D plot from the site is shown below. The 3D visualization is useful for developing safety and risk profiles for the site as it shows where the spatial relationship between UXOs at the site.

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