Idaho Sand and Gravel Co.

Idaho Sand and Gravel Co. is working to complete a $34 million interchange construction project on a well-travelled stretch of Interstate 84 through its namesake state next year. The project, commissioned through the Idaho Department of Trans­por­tation through federal bonds, involves replacing a bridge that spans the highway at Ten Mile Road with a single-point urban interchange. Work started last December with the demolition of the bridge, Project Manager Shawn Parker says.

The 28-acre construction site is located on a busy stretch of I-84 that serves as the main corridor between Boise and Nampa, Idaho’s two largest cities. The interstate will have three lanes with enough space for a potential fourth lane. Crews are currently preparing to pour the concrete for the interchange’s deck. Traffic in the area will continue during construction. 

In addition to the interchange construction work, Idaho Sand and Gravel Co. will reconstruct and realign a portion of a road running through the area and install drainage and irrigation improvements.

Parker estimates crews will use 800,000 cubic yards of granular borrow, 58,000 square yards of concrete paving, and 50,000 tons of asphalt on the project. 

Last year, Idaho Sand and Gravel finished a $28 million widening of a 2.4-mile stretch of 

I-84 bet­ween Ten Mile Road and the Garrity interchange in the same area where the interchange is being built. Both sides of the road were widened from two to three lanes, with plans for a fourth lane to be added in the fu­ture, according to Parker. The work included excavation, paving, a cast-in-place concrete barrier, overhead sign structures, drainage, electrical conduits, a retaining wall and pavement markings. 

Project Coordination

As general contractor on the project, Idaho Sand and Gravel is closely coordinating with a number of different public entities on the interchange project in addition to the Idaho Department of Transportation. Other stakeholders include the Ada County Highway District and the city of Meridian – where the project is located – as well as a number of util­ity companies and irrigation districts. 

“It’s been a challenge just coordinating with all the entities that have a stake or interest in the project,” Parker says. “What we’ve done to get past it is have detailed weekly coordination meetings with all involved parties.

“Upfront planning and proper coordination goes a long way and prevents a lot of problems and a lot of headaches, and saves a lot of time and money,” he adds. “A good relationship with the owner also makes for a successful project.”

Idaho Sand and Gravel is working closely with a number of subcontractors on the pro­ject including Porter W. Yett Co., Inc. and Concrete Placing Inc. of Boise. Porter W. Yett Co., a Spokane Valley, Wash.-based contractor, is performing asphalt pulverization on the project, which involves grinding existing asphalt. The ground asphalt is then recycled and re-used on the project. Concrete Placing Co. is the project’s concrete contractor. 

Daily safety meetings are conducted on site, and safety is the first topic discussed during weekly coordination meetings, Parker says.

Key personnel on the I-84 project include Project Manager John Mitchell, Project Esti­mator Ryan Russell, Project Super­inten­dent Steve Walker, and Project Foremen Steve Grothaus and Dan Rasmussen.

Standing Out

Idaho Sand and Gravel Co. was founded in 1972 to supply rock products to retail cust­omers in Boise and soon expanded into asp­halt production, paving and construction. The company has asphalt plants in Nampa, Boise and Twin Falls, Idaho. The company is owned by Staker Parson Companies, a construction materials and services provider with locations in Utah, Idaho, Oregon, Nevada and Arizona.

Staker Parson Companies’ federation of companies also includes Jack B. Parson Com­panies, a construction material supplier and contractor; Idaho Con­crete Company, a ready-mix concrete supplier; and Western Rock Products, an asphalt, paving, concrete and construction services com­pany.

“From the roads you drive on to the parks you play in, you can count on the team at Staker Parson Companies to deliver quality products and projects in a safe, timely and efficient manner,” the company says.

Parker says Idaho Sand and Gravel’s experienced personnel is a big part of the company’s success. “Our people and our general attitude distinguish us,” he adds. “We have a very professional staff.” 

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