Mapping from Earth, Sky, and Space

It was the best of times, it was the wettest of times… Much like a famous novel by Charles Dickens, the motif of this story hinges on two important, simultaneous events. For just over a year, Continental Mapping worked simultaneously on multiple large boundary survey projects — miles and miles of boundary survey. This story covers two of the largest surveys in the company’s book of work, one at Fort Sill, Oklahoma, and the other at Fort Polk, Louisiana. A tale of two boundary surveys, if you will.


Re-establishing property boundaries is no small task: completing just one mile of boundary survey involves several factors including legal research and historical record review; coordinating with local, state, and federal agencies and adjacent property owners; establishing monuments; and dealing with wildlife, weather, and other natural perils.

SCOPE: Support engineering design though the fusion of mobile lidar, subsurface utility engineering (SUE), and conventional survey data. 

Located near Abilene, Texas, Dyess AFB serves a critical role in the local economy as well as a front-line role in global military operations. Dyess AFB is home to the 7th Bomb Wing, a premier unit of B-1B Intercontinental Bombers. The unit also features an important C130 Air Mobility Command (317th Airlift Group) with the largest fleet of J-model (modern) C130s in the country.

Tennessee, like all states, is facing increased demand on its transportation infrastructure. The Interstate 24 corridor, a 185-mile stretch from Kentucky to Georgia has been identified in the Tennessee Department of Transportation (TDOT) Long Range Transportation Plan (Plan GO) as critical to statewide mobility and regional connectivity. One critical segment of this corridor deemed high priority is the “Moccasin Bend” segment tucked in between the Tennessee River and a steep bluff in downtown Chattanooga.


TDOT needed a high accuracy 3D model of this complex area in order to evaluate many different multi-modal design alternatives. Continental Mapping brought a mobile lidar solution to the problem. Mobile lidar, when fused with aerial lidar and aerial imagery, creates a dataset that allows for complex, high accuracy design alternative development, and provides a cost-effective reusable 3D mapping dataset that can be used for years to come.

The demand on transportation infrastructure is up, along with fuel efficiencies, causing less taxable fuel to be consumed. The resulting revenue shortfalls make asset management programs essential to take care of assets that are already in place and manage the long term life of overall asset inventories. Asset Management, a systematic approach leveraging complete data sets, allows for accurate assessment of risk and investment. Asset management helps make sure funding is available for the highest priorities.

Infrastructure of all types throughout the United States is aging. Organizations need to increase their inspections, repairs, and maintenance programs to keep this infrastructure viable in a growing economy. In some cases, existing infrastructure doesn’t adequately meet the requirements of today’s equipment. One such example is the Virginia Street overpass along I-65/I-70 in southeast Indianapolis, Indiana.


On February 22nd, 2013, an oversized truck collided with the Virginia Street overpass on I-65/I-70 causing a support beam to split. Due to the risk to the integrity of the structure, INDOT responded swiftly, engaging Continental Mapping to complete a mobile lidar and mapping project for the site. Time was of the essence to provide survey data to INDOT’s engineers so that a design for a repair could be quickly made. This bridge had been closely watched by INDOT for some time given its limited clearances and numerous reported strikes. A local university had even mounted a camera on the bridge to document the dozens of strikes to the bridge both minor and major.