Association News

RCC (Special Application) – Silver Award

Silver Award –DOT 4 ft. Shoulder and Ramp Replacement, Guilford/Randolph County, N.C.

Contractor: Andale Construction*

Owner:  North Carolina Department of Transportation     

Engineer: NCDOT District 7 RCE

When the North Carolina District 7 Department of Transportation wanted to rehabilitate a 7-mile section of Interstate 85—north and south bound—located between Archdale and High Point, officials selected roller compacted concrete for the 10 ft. outside shoulder. 

Because RCC adds a significantly higher structural value to the shoulders, NC DOT also decided to see if the contractor could pave a 4 ft.-wide inside shoulder as well so that the entire roadway would be concrete.  A typical RCC section of 4 ft. RCC had never been successfully constructed before the North Carolina project.

Andale Construction modified its high density screed paver and with detailed upfront planning handled the project. The construction time for both of the north and south bound lanes was 16 days from start to finish. The typical section of the 35,887 SY inside shoulder was 6 in. in depth with wider areas placed to meet bridge approaches and slope protections.

In addition to the inside shoulders, Andale also replaced the two concrete exit and entrance ramps at the Archdale #111 exit with broom-finished RCC. The ramps were removed, reconstructed with RCC and reopened in 1O total working days, including demolition of the existing 8 to 11 in. concrete section.

The speed with which the RCC was placed saved NC DOT three months of construction time on the inside shoulder and four months on the ramp replacement. The inside shoulders took 16 total days to remove and replace and the ramps took 10 total days – including curing time.

 

RCC (Special Application) – Gold Award

Gold Award – Roller Compacted Concrete Streets, Roseville, CA

Contractor: FBD Vanguard Construction Inc.*

Owner:  City of Roseville, Calif.   

Engineer: Bennett Engineering

The City of Roseville’s RCC Pilot Project involved reconstruction of several lane miles of existing asphalt pavement road with RCC in multiple locations.

Three diverse roads were chosen for the pilot project. Washington Boulevard is a five-lane arterial; Atkinson Street is a two -lane collector road; and Hickory Street is a residential street.

In addition to reduced lifetime maintenance costs, the first costs for the pavement on this project came in about 10% lower than expected for a comparable asphalt pavement.  The use of RCC is a relatively uncommon in Northern California, but officials decided to consider it for a pilot project.   In all, 60,000 SY of RCC was used.

Multiple factors posed scheduling challenges to this project. The largest challenge centered around completing the RCC pavement construction in a short working period.  With the aim of not disrupting a local school’s operations, summer break (June to mid-August) was determined to be the best time to complete the work.

Other traffic concerns centered around the need for weekend access to the region’s historic Denio’s Farmer Market. This combination market/swap meet is popular in the community, and the operators are known for their continued service, rain or shine.

The schedule gave the contractor less than seven days to pave and achieve maturity opening strength in both directions.  Paving started the day after the market closed and re-opened the day before the next market. The construction was such a success that Denio’s Market hosted an RCC tour at their facility for other agencies, engineers, and developers to come see first-hand the RCC paving process and finished product.

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* ACPA member.

Overlays (Streets & Roads) – Gold Award

Silver Award – Cannelburg Road, Phase III, Daviess Co., Ind.

Contractor: Milestone Contractors, LP*

Owner:  Daviess County (Indiana) Highway Department   

Engineer: Lochmueller Group

 The Amish population in Daviess County, Ind., is among the highest in the nation.  Cannelberg road was narrow and carried a mix  of semis and other large trucks, passenger vehicles, and horses and buggies.  Traffic  accidents, including fatalities, prompted Daviess County to look for alternatives to improve safety.

This project is the third of three phases to improve CR 900 E from the town of Cannelburg at the south end to Odon at the north end, all three have been constructed by Milestone Contractors.

The design engineer’s solution was to widen the driving lanes and add wide, paved shoulders to be used as buggy lanes.

This project involved the reconstruction of Cannelburg Road with 12 ft. concrete travel lanes with a 1 ft. concrete shoulder and 8 ft. asphalt shoulders on each side for buggies, as well as two 2-ft. gravel shoulders. There was also a realignment at CR 1050 N and CR 1100 N to improve the line of sight and to eliminate any sharp turns.

A key component of any construction project’s success is awareness of and respect for stakeholder needs. The contractor met with the local farmers whose busy farms lined the road, and based on those discussions, modified the construction schedule to accommodate their businesses.  The construction was also phased to help minimize disruptions at intersections and allow for detours around the project.

Although the contract did not prevent the contractor from working on the days during the year considered holy by the Amish, the project team identified those days in conversations with residents and determined they would not to work as a show of respect to the Amish and to allow them to observe the days without interruption.

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* ACPA member.

State Roads – Silver Award

Silver Award – U.S. 6 Reconstruction, Noble County, Ind.

Contractor: Primco Inc.*

Owner:  Indiana Department of Transportation   

Engineer: Beam, Longest & Neff LLC

Shortly after the construction of a new bridge by Norfolk Southern Railroad in Noble County, Ind., Primco was given a 90 calendar day road closure to connect 3,600 feet of 9.5 in. PCCP roadway to the existing road tie-ins and the new bridge.

This was an alternate bid job with concrete winning out after the consideration of life-cycle costs vs. first costs.  The concrete pavement was completed in two 16 ft. passes with a safety edge. Robotic stations were set up at 250 ft. intervals to improve the accuracy of paving and to help impart a smooth ride.

The pavement was finished with a 10 ft. straight edge to double check smoothness with 5 ft. overlapping passes.  Additional steps were taken to  check the edge slump and ensure the best quality pavement. At total of 12,871 SY of concrete was placed at a cost of just over $517,000. The contractor earned more than $85,000 in incentive pay.

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* ACPA member. 

State Roads – Gold Award

Gold Award – Route 36 Osborn Curve Reconstruction, DeKalb County, Mo.

Contractor: Emery Sapp & Sons*

Owner/ Engineer: Missouri Department of Transportation            

The Route 36 Osborn Curve Reconstruction project was a high priority project for the Missouri DOT based on the high number of traffic accidents that had occurred over the years due to the curve alignment at the intersection of Highways 36 and 33.

A 3/4-mile section of Highway 36 was completely removed and replaced to change both the horizontal and vertical alignments of the Osborn Curve, as it was known to locals. Both left and right hand turn lanes were added in both Eastbound and Westbound lanes of Highway 36 at the Highway 33 intersection. A total of 2,500 lineal feet of storm pipe along with precast drop inlets were installed to improve drainage through the project along with new signage and pavement marking.

The project consisted of 18,000 SY of existing pavement removal, 25,000 CY of Class A Excavation along with linear grading and compacting in cut to create the new alignment. All of the pavement on the project was PCCP pavement and consisted of 10,000 SY of 8.5 in., 4,500 SY of 7.5 in. and 6,400 SY of concrete A2 shoulder. The existing asphalt pavement was milled, stockpiled and used as aggregate base under the new concrete pavement.

The $1.9 million project was completed and fully open to traffic in only 88 days, and since opening to traffic, has greatly improved safety through this stretch of Highway 36.

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* ACPA member.

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