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Stringham Completes Utah Project With Hydrema’s 922C

Thu December 25, 2008 - West Edition
Construction Equipment Guide

Stringham Construction, a full service construction and excavating company, used a Hydrema 922C articulated dump truck to handle its roadbuilding and site-prep construction needs on the Swan Creek Village project.

Swan Creek Village is located in the foothills, on the west side of Bear Lake near the Utah/Idaho boarder. The village consists of 800 lots, mostly filled with cabins, as well as an RV park. Swan Creek has its own beachfront access to the lake and is minutes away from the state marina and boat launch. The village also is adjacent to more than 300 mi. of groomed snowmobile trails, with skiing for recreational use in the winter.

Swan Creek Village has been under construction for the past 10 years, with Stringham Construction now completing the final phase. This phase consists of building access roads for two, 16 ft. (4.9 m) tall water tanks that will hold 200,000 gal. (757,082 L) of water. Stringham also will handle installation of waterlines that will run from the water tanks to the cabins below, which sit atop a 30-acre mountainous, 130 lot site.

Before work began on the final phase, Stringham contacted MESCO, its local equipment dealer, looking for a powerful articulating dump truck that would be able to maneuver narrow roads and tackle rough terrain.

“At first we were looking at a 40 metric ton articulating dump truck. As we looked over the site, it became obvious we needed something smaller and more maneuverable like the Hydrema 922C,” said Dan Stringham, owner of Stringham Construction. “MESCO was right there during this process and helped us choose the best piece of equipment for the job.”

The project began in mid April, with up to 8 ft. of snow covering parts of the site. Stringham used its dozer to clear the snow before starting earthwork.

“We are working on the side of a mountain with steep cliffs. Adding 8 feet of snow to the already challenging terrain creates an even more dangerous work environment,” said Stringham. “We had a few snow drifts that were 12 ft. high, which was a little scary. We pushed the snow over the side of the mountain to get it out of our way quickly.”

After clearing the snow, Stringham began excavating the 5,000-ft. (1,524 m) long access roads for the water towers, but as the snow melted, it created an extremely muddy work environment.

“We had mud up to the axles on the 922C, but it always pulled through and never got stuck, even when fully loaded. It has very good traction in all kinds of conditions and is very powerful,” said Stringham.

The 922C is made of high tensile Hardox steel, providing the strength needed for various work conditions. Its low ground pressure of 11.3 psi and low weight of 31,500 lbs. (14,290 kg) enables it to operate in both hard and soft soil conditions, as well as snow. The 922C is equipped with a 15.7 cu.-yd. (12 cu m) capacity and is powered by a 1.7-gal. (6.7 L) Cummins QSB, 24 valve Tier III engine, rated at 264 hp (196 kW).

After the snow and mud became part of the past, Stringham still had to deal with the 45 degree sloped mountain and tight work area with large cliffs both above and below them.

“The roads were 10 ft. wide when we started the project and are now about 15 ft. wide,” said Stringham. “We had to build turn-around areas every 500 feet in order to haul the material safely off the mountain. The Hydrema 922C has excellent visibility and is small enough to maneuver in these confined work areas.”

The 922C’s cab sits high on the dump truck body and has an inclined narrow hood, which gives the operator all-around visibility. The 922C also features broad mirrors for added visibility when in reverse or tipping. The narrow 9 by 26.5 ft. (2.7 by 8 m) body allows it to work in narrow areas on the job site.

Stringham also installed 7,000 ft. (2,130 m) of 6 in. (15 cm) PVC pipe that is required to be buried 6 ft. (1.8 m) deep, then backfilled with sand and covered with fill dirt.

“We’ve been using the 922C for just about everything,” said Stringham. “We’ve loaded it with pipe and used it for hauling and unloading the sand and fill for backfilling the pipe trenches.”

To date Stringham has excavated and hauled more than 5,000 tons (4,500 t) of rock and soil with the 922C. Some of the soil was hauled to a lower area of the village where it was used to realign a road that had cut across a residence’s property.

“We used the dirt from the excavation work on the water tank access road to create the new road. This portion of the project required a lot of fill dirt to fill in the 20 ft. deep slopes and gaps,” said Stringham. “We were able to knock this project out without compromising our water tank deadline due to the 922C’s quick cycle time and maneuverability.”

The Hydrema 922C’s tipping hydraulics with servo automatically increases the engine revs when the tipping control lever is activated. This achieves fast tipping cycle times of 7.5 seconds up and 5.5 seconds down. It is also very stable due to its articulation joint and can dump fully articulated, according to the manufacturer.

“I’ve been running the 922C for 50 hours a week and it’s held up very well with minimal downtime. It is very easy to perform basic maintenance and extremely fuel efficient,” said Stringham. “It also provides a smooth ride.”

A/S Hydrema is a modern, international group of companies, which design, manufacture and market high-technology earthmoving equipment. Founded in 1959, with production facilities in Weirmar, Germany, Hydrema consists of a broad network of sales and service facilities with subsidiaries in all major western European countries. In 2005, Hydrema established its North American headquarters in Atlanta, Ga., and has since grown its dealer network throughout the United States and Canada.

For more information on Hydrema, call 404/614-1747 or visit

For information on Stringham Construction, 435/757-5997.

For more information on MESCO, call 888/854-4529 or visit

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