Pinnacle Design/Build Group, Inc. -- Project Profiles

Atlantic Station, Atlanta, GA

PROJECT FACTS: Wall Area = 23,000 SF; Max Ht = 15 FT

CHALLENGE: The developer was required to support an earth fill adjacent to a depressed parking deck. The retaining wall had to allow vehicular traffic to cross over the top of the retaining wall into the parking deck.

SOLUTION: Pinnacle Design/Build engineered and constructed a segmental retaining wall with a cap beam. The project’s parking deck structural engineer designed a cantilever road section to span into the upper deck.

VALUE: The retaining wall was installed at lower cost than conventional cast in place concrete.

Village of Greenway, Chattanooga, TN

PROJECT FACTS: Wall Area = 3,000 SF; Max Ht = 18 FT

CHALLENGE: The developer of this senior living community needed retaining walls to support a roadway lake crossing into the development's common area. Aesthetics were of particular concern as this crossing was to form the center-piece of the community.

SOLUTION: Pinnacle Design/Build engineered and constructed a large span culvert and covered it with back-to-back MSE Segmental Block Retaining Walls incorporating decorative exterior columns.

VALUE: Pinnacle Design/Build's solution provided structural stability and aesthetic appeal at a significantly reduced cost compared to a bridge or other comparable systems by combining MSE technology and superior craftsmanship.

I-24 at Manson Pike, Murfreesboro, TN

PROJECT FACTS: Wall Area = 57,000 SF; Max Ht = 28 FT

CHALLENGE: The Tennessee Department of Transportation’s new interchange along Interstate 24 required retaining walls to support the ramps and bridge abutments.

SOLUTION: Pinnacle Design/Build constructed segmental retaining walls to support the ramps and bridge abutments.

VALUE: Pinnacle Design/Build constructed the completion of the retaining walls to allow the prime contractor to complete the overall project on time.

Brian Head Ski Resort, Brian Head, UT

PROJECT FACTS: Wall Area = 3,000 SF; Max Ht = 14 FT

CHALLENGE: The ski resort located in southern Utah required new ski bridge across a busy roadway accessing the ski resort. The bridge abutments needed to be built quickly during the short summer construction season.

SOLUTION: Pinnacle Design/Build designed and constructed two MSE segmental retaining wall abutments . These walls were then covered with a natural stone veneer to blend with the rustic surroundings.

VALUE: The Pinnacle Design/Build team designed and constructed both bridge abutment walls in less than two months from start to finish! This allowed the resort operator to open the new bridge just in time for ski season with no missed revenue.

I-10 at Picardy Lane, Baton Rouge, LA

PROJECT FACTS: Wall Area = 230,000 SF; Max Ht = 33 FT

CHALLENGE: The Louisiana Department of Transportation’s new interchange along Interstate 10 required retaining walls to support the ramps and bridge abutments.

SOLUTION: Pinnacle Design/Build constructed segmental retaining walls to support the ramps and bridge abutments.

VALUE: Pinnacle Design/Build constructed the completion of the retaining walls to allow the prime contractor to complete the overall project on time.

Home Depot, Inverness, AL

PROJECT FACTS: Wall Area = 8,000 SF; Max Ht = 37 FT

CHALLENGE: The retail site’s extreme change in grade required a retaining wall to support the store’s rear access drive.

SOLUTION: A MSE Segmental Retaining Wall was the solution selected by the Pinnacle Design/Build design team for the structural support of the fill for the rear access drive.

VALUE: The selected MSE Segmental Retaining Wall system’s high structural performance provided the required support for the 37ft fill while offering an appealing architectural finish.

UT DOT US 491, Monticello, UT

PROJECT FACTS: Wall Area = 6,000 SF; Max Ht = 14 FT

CHALLENGE: Utah DOT required a cost effective wall system to support widening of US Route 491 over a small ravine. Specifications called for a system that blended will with the natural environment of southeastern Utah.

SOLUTION: Pinnacle Design/Build constructed a desert brown, split faced Segmental Retaining Wall (SRW) and heavy-duty cast-in-place concrete coping system.

VALUE: The Pinnacle Design/Build solution was constructed quickly and cost effectively with minimum disruption to traffic and the surrounding desert.

Beech Creek Water Improvements, Franklin, TN

PROJECT FACTS: Wall Area = 10,500 SF; Max Ht = 29 FT

CHALLENGE: The Mallory Valley Utility District in Williamson County, Tennessee required two new five million gallon water tanks as part of a large public water supply improvement project. To meet elevation requirements, the tanks were to be situated near the top of a steep hillside. However, a stable and level foundation was necessary to support the heavily loaded tanks.

SOLUTION:

Pinnacle Design/Build designed and constructed two mechanically stabilized earth segmental retaining walls to safely carry the anticipated loading associated with the tanks.

VALUE: The Pinnacle Design/Build solution provided a quick and cost effective solution to develop the foundation area required for the new water tanks and allowed the project to continue on schedule.

TN DOT SR 386, Hendersonville, TN

PROJECT FACTS: Wall Area = 17,000 SF; Max Ht = 26 FT

CHALLENGE: The Tennessee Department of Transportation's new interchange along State Route 386 required gracefully curving retaining walls to support the ramps and abutments on both ends of a new bridge.

SOLUTION: Pinnacle Design/Build designed and constructed two smoothly curved segmental retaining walls (SRWs) to meet the DOT's requirements.

VALUE: Pinnacle Design/Build rapidly completed the complex construction to meet the General Contractors accelerated schedule for bridge beam installation.

MSE Panel Retaining Wall Project Profiles

Grand Soleil Casino, Natchez, MS

PROJECT FACTS: Wall Area = 32,500 SF; Max Ht = 47 FT

CHALLENGE: The riverboat casino development required a submerged retaining wall to support the proposed buildings and parking lot along the banks of Mississippi River.

SOLUTION: Pinnacle Design/Build constructed a MSE panel wall that was submerged into the flowing Mississippi River that was able to withstand the annual flood waters.

VALUE: The developer was able to realize the cost savings over other conventional construction techniques.

University of Virginia - North Grounds Connector, Charlottesville, VA

PROJECT FACTS: Wall Area = 24,200 SF; Max Ht = 42 FT

CHALLENGE: The University of Virginia needed a new roadway over a stream valley.

SOLUTION: Pinnacle Design/Build constructed two back to back 42 ft tall MSE- panel retaining walls to support the elevated roadway.

VALUE: The MSE retaining walls were constructed quickly and at a lower cost than conventional retaining wall options. The vertical retaining walls minimized the roadway’s footprint onto the stream valley.

Consolidated Rental Car Facility (CONRAC), Hartsfield-Jackson Int. Airport, Atlanta, GA

PROJECT FACTS: Wall Area = 2,200 SF; Max Ht = 29 FT

CHALLENGE: The City of Atlanta required a new bridge and embankment at a key intersection inside the new CONRAC facility under construction at the Hartsfield-Jackson International Airport.

SOLUTION: Pinnacle Design/Build constructed an MSE Panel retaining walls to form the abutments on both sides of the bridge. We also constructed precast and cast-in-place concrete coping to finish the top of the walls.

VALUE: The MSE-Panel Retaining Wall supplied the structural support required while its architectural finish provided an aesthetically pleasing touch.

MSE Vegetated Slopes Project Profiles

Home Depot, Villa Rica, GA

PROJECT FACTS: Slope Area = 31,000 SF; Max Ht = 32 FT

CHALLENGE: Create a grade separation along the property line to support the new store and parking lot.

SOLUTION: Pinnacle Design/Build provided a 32 ft tall Vegetated MSE vegetated slope as a value added alternative.

VALUE: The Vegetated MSE vegetated slope was constructed faster and eliminated utility conflicts with utilities adjacent to the slope. The “green” solution allowed the very tall steepened slope to blend into the natural surroundings.

Westchester Commons, Midlothian, VA

PROJECT FACTS: Wall Area = 42,000 SF; Max Ht = 64 FT

CHALLENGE: The developer of this project required a large retaining wall to prevent encroachment into a sensitive wetlands area. The retaining wall was originally designed to be a segmental retaining wall. Given the height, this would have been extremely expensive. In addition, the “concrete” look did not blend well with the surroundings.

SOLUTION: Pinnacle Design/Build value engineered the wall into an MSE Vegetated slope that could be constructed more rapidly and with less expense than the original design.

VALUE: Our solution saved the developer nearly 20 percent in wall construction costs. In addition, the vegetated slope blends well with the sensitive environment the it was built to protect.

Buffalo Bayou Bank Protection, Houston, TX

PROJECT FACTS: Slope Area = 3,000 SF; Max Ht = 10.5 FT

CHALLENGE: As part of a City of Houston Parks jogging and bike path improvement project, retaining walls were required at new bridge structure to be constructed over the Buffalo Bayou drainage channel. These walls needed to provide structural support for the bridge, protect the bank of the bayou from erosion and fit with the natural surroundings of the park.

SOLUTION: As part of a City of Houston Parks jogging and bike path improvement project, retaining walls were required at new bridge structure to be constructed over the Buffalo Bayou drainage channel. These walls needed to provide structural support for the bridge, protect the bank of the bayou from erosion and fit with the natural surroundings of the park.

VALUE: The Pinnacle Design/Build solution provided a surprisingly cost effective and green solution that satisfied city officials as well as park goers.

Lenoir Business Park, Lenoir, NC

PROJECT FACTS: Wall Area = 94,000 SF; Max Ht = 56 FT

CHALLENGE: The developer of this project required nearly 100 acres of relatively flat space to construct several buildings and associated parking. The project, located in the hilly region of western North Carolina was on a fast track and the reinforced slopes were on the critical path of the project schedule.

SOLUTION: Pinnacle Design/Build engineered and constructed four massive MSE Vegetated slopes that averaged over 38 feet in height.

VALUE: Pinnacle Design/Build was able to make engineering decisions during the design and construction process that allowed the grading contractors to move at an expedited pace and stay on schedule. In addition, the vegetated slopes blended nicely with the surrounding area and were less expensive than other options considered.

MSE Stone Faced Retaining Walls Project Profiles

Woodlands of Knoxville, Knoxville, TN

PROJECT FACTS: Wall Area = 33,700 SF; Max Ht = 62 FT

CHALLENGE: The developer of this high-end college condominium complex had to create useable from the side of a steep hill through the use of retaining walls. Moreover, the highest wall on the site had to support a storm water detention basin with very little tolerance for settlement.

SOLUTION: Pinnacle Design/Build designed and constructed several MSE stone faced retaining walls to create the space and structural support required.

VALUE: The Pinnacle Design/Build solution offered significant savings when compared to other types of retaining walls considered for this site. Our solution also reduced the time required to bring the site to “pad-ready” condition.

Blue Ridge Parkway Landslide Repair, Spruce Pine, NC

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 22.5 FT

CHALLENGE: Repair to the parkway at the several landslide locations.

SOLUTION: Pinnacle Design/Build was part of a design team that utilized soil nailing, tiebacks and MSE retaining walls to stabilize the slide and support the reestablished roadway.

VALUE: The solution of soil nailing and MSE retaining walls provided a high performance and reliable support system.

Sonic Drive-In - Retaining Wall Repair, Ringgold, GA

PROJECT FACTS: Wall Area = 2,300 SF; Max Ht = 17 FT

CHALLENGE: The retaining wall supporting the parking lot and drive thru lane of this restaurant failed due to scour at the toe.

SOLUTION: Pinnacle Design/Build designed a scour mattress and an MSE buttress wall with a welded wire form (WWF) stone facing to shore the failed block wall. Our crews constructed this mattress and wall system in front of the failed structure and without incident.

VALUE: The Pinnacle Design/Build solution was quickly constructed providing the required structural support with minimal disturbance to the restaurant operations. Compared to other options considered, this approach saved substantial time and money.

Dick Lane Velodrome - Retaining Wall Repair, Atlanta, GA

PROJECT FACTS: Wall Repair Area = 2,800 SF; Max Ht = 20 FT

CHALLENGE: A large diameter headwall supporting the velodrome bicycle track failed from foundation scour.

SOLUTION: Pinnacle Design/Build designed an MSE retaining wall with a welded wire form (WWF) stone facing to replace the failed headwall. Our crews carefully demolished and removed the failed structure and replaced it without incident.

VALUE: The Pinnacle Design/Build solution saved the owner $100,000 when compared to other potential solutions.

Wal-Mart, California, MD

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

CHALLENGE: This retail site required an earth retaining structure that could provide the required grade separation. In addition, the structure had to be resistant to the erosive forces of water flowing in the adjacent creek and wetland areas.

SOLUTION: Pinnacle Design/Build constructed a two stone faced MSE retaining walls along the creek line and wetland areas.

VALUE: These structures were more economical than traditional retaining wall structures and provided enhanced erosion control compared to a vegetated slope.

Pressure Relief Retaining Wall Project Profiles

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 9,000 SF; Max Ht = 30 FT

CHALLENGE: A below grade parking structure required thick, expensive reinforced concrete retaining walls to support lateral earth pressures and the structure to be constructed above it.

SOLUTION: Pinnacle Design/Build value engineered and constructed a composite soil nail and MSE retaining wall system to withstand the anticipated lateral loads. A segmental block facing was constructed in front of the composite mass to form the permanent interior wall facing for the parking garage. This eliminated the need to build an additional facing wall.

VALUE: The developer was able to save about 40% of the cost of traditional foundation walls and cut the timeline for completion by about 30%.

Foundry Park, Richmond, VA

PROJECT FACTS: Slope Area = 17,100 SF; Max Ht = 43 FT

CHALLENGE: A below grade parking structure was designed with 48-inch thick reinforced concrete foundation walls to support lateral earth pressures and the structure to be constructed above it. The structural engineer was looking for ways to reduce the cost of these walls for the developer.

SOLUTION: Pinnacle Design/Build value engineered and constructed a composite an MSE retaining wall system to withstand the anticipated lateral loads.

VALUE: This solution reduced the cost of the foundation walls on the project by approximately 50 percent and allowed the project to proceed ahead of schedule.

Two Alliance Center, Atlanta, GA

PROJECT FACTS: Wall Area = 12,000 SF; Max Ht = 48 FT

CHALLENGE: A new office building was to be erected in the tight confines of the Buckhead area of Atlanta. The foundation walls of the adjacent below-grade parking structure were supported by a temporary, tied-back piling wall that was not designed to support the new structure. A permanent pressure relief wall was required.

SOLUTION: Pinnacle Design/Build designed and constructed an MSE pressure relief wall that allowed the facing of the existing pile wall to remain in place while supporting the anticipated design loads of the new structure.

VALUE: This solution significantly reduced the overall cost and time required to prepare the site for construction by eliminating the requirement to demolish the existing temporary wall. The entire wall was constructed in less than two months.

Cast-In-Place (CIP) Retaining Walls Project Profiles

Marketplace at Birmingham Village, Alpharetta, GA

PROJECT FACTS: Wall Area = 17,760 SF; Max Ht = 18 FT

CHALLENGE: The commercial developer required the site storm water detention basins to be more cost effective than cast in place concrete.

SOLUTION: Our engineers redesigned the detention basin walls from all cast-in-place concrete to a composite vegetated welded wire form /cast in place retaining wall.

VALUE: This solution provided 35% cost savings over the previously designed wall and provided more pleasing appearance.

Stonewyck Detention Basin, Alpharetta, GA

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

CHALLENGE: The residential developer for this project required a storm water detention basin that was more cost effective and aesthetically pleasing than the continuous cast in place concrete wall originally designed for the project.

SOLUTION: Our engineers redesigned the detention basin wall from a single large cast-in-place concrete wall to a composite segmental retaining wall/cast in place concrete retaining wall. We constructed the concrete wall first then butted the segmental retaining wall into it.

VALUE: This solution provided 25% cost savings over the previously designed wall and provided more pleasing appearance.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 5,300 SF; Max Ht = 18 FT

CHALLENGE: The commercial development required retaining walls to create a below grade stormwater detention pond on a congested construction site with limited right of way.

SOLUTION: Pinnacle Design/Build designed and constructed a tied-back soldier pile and lagging walls with a cast-in-place concrete facing on three sides of the structure and a segmental retaining wall on the fourth.

VALUE: The Pinnacle Design/Build solution enabled construction of the stormwater detention basin within the limited confines available. The solution provided a substantial cost savings over the originally designed cast in place concrete retaining walls.

Providence Marketplace, Mt. Juliet, TN

PROJECT FACTS: Wall Area = 14,000 SF; Max Ht = 22 FT

CHALLENGE: The developer of this retail site was required to create a storm water detention structure in high ground water table and exposed surface rock conditions.

SOLUTION: Pinnacle Design/Build engineered and constructed a composite wall system consisting of a free standing cast-in-place concrete wall abutted to a stone faced MSE wall.

VALUE: This solution reduced the overall cost of the structure by reducing the amount of cast-in-place concrete required. In addition, the design was easily adapted to meet the difficult ground water and surficial rock conditions.

Gravity Retaining Walls Project Profiles

American Self Storage Facility - Retaining Wall Repair, Austin, TX

PROJECT FACTS: Wall Repair Area = 5,300 SF; Max Ht = 17 FT

CHALLENGE: A poorly constructed cast-in-place concrete retaining wall supporting the slope next to this self storage facility failed catastrophically. The failure also put an adjacent high pressure gas line at risk.

SOLUTION: Pinnacle Design/Build designed a gravity retaining wall using Redi-Rock ^TM large block units to replace the failed wall. Our crews carefully demolished and removed the failed structure and replaced it without incident.

VALUE: The Pinnacle Design/Build solution saved the developer over $500,000 when compared to other potential solutions. In addition, the entire project (design to closeout) was completed in 28 days without damaging ore even taken the gas line of of service.

Kmart, Bluefield, WV

PROJECT FACTS: Wall Area = 1,280 SF; Max Ht = 8 FT

CHALLENGE: A segmental retaining wall supporting the parking lot of a K-mart store had experienced failure. The owner wanted the wall repaired without impacting store operations.

SOLUTION: Pinnacle Design/Build designed a gravity retaining wall using Redi-Rock™ large block units to replace a portion of the failed wall. Our crews carefully demolished and removed the failed structure, regraded the area and constructed the gravity replacement wall.

VALUE: The Pinnacle Design/Build solution was implemented without complete demolition of the existing wall which would have impacted store operations. The partial reconstructions saved significant time and money when compared to other options.

Palisades Drive, Signal Mountain, TN

PROJECT FACTS: Wall Area = 1,000 SF; Max Ht = 15 FT

CHALLENGE: A century old, stacked stone retaining wall supporting Palisades Drive where it passes over a protected, environmentally sensitive creek was progressively failing. The failing wall put the busy roadway above and its passengers at risk. The wall had to be repaired without compromising the creek and with minimum impact to traffic.

SOLUTION: Pinnacle Design/Build designed a gravity buttress wall using Redi-Rock™ large block units to stabilize the failing wall. Our crews carefully constructed the challenging repair without incident.

VALUE: The Pinnacle Design/Build solution saved the town over $300,000 when compared to other solutions considered. In addition, the entire project (design to closeout) was completed in less than one month while keeping the Palisades Drive open to traffic.

Roger Bacon High School Football Stadium, Cincinnati, OH

PROJECT FACTS: Wall Area = 3,000 SF; Max Ht = 6 FT

CHALLENGE: An existing retaining wall and slope supporting the bleachers are this high school football stadium were in disrepair and required rehabilitation. The school had a limited budget for the work.

SOLUTION: Pinnacle Design/Build engineered and constructed a gravity retaining wall with an architectural finish at the toe of the deteriorated wall/slope.

VALUE: The engineered solution provided the required structural stability and a pleasing aesthetic appeal. The gravity wall system also cost less than the structural concrete alternative.

Ruby Tuesday, Lewisburg, WV

PROJECT FACTS: Wall Area = 1,000 SF; Max Ht = 6 FT

CHALLENGE: This restaurant was to be built in a area with many existing utilities. The perimeter of the site required retaining walls to obtain the desired grade. Conventional wall systems would have required excavation/relocation of the existing utilities.

SOLUTION: Pinnacle Design/Build engineered and constructed a large block gravity retaining wall system that could be constructed without disturbing the existing utilities.

VALUE: This system limited the amount of excavation and the necessity to pay for expensive relocation of existing utilities.

Soil Nail Wall Project Profiles

Blue Ridge Parkway Landslide Repair, Spruce Pine, NC

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 22.5 FT

CHALLENGE: Repair to the parkway at the several landslide locations.

SOLUTION: Pinnacle Design/Build was part of a design team that utilized soil nailing, tiebacks and MSE retaining walls to stabilize the slide and support the reestablished roadway.

VALUE: The solution of soil nailing and MSE retaining walls provided a high performance and reliable support system.

The Retreate at High Pointe, Savannah, TN

PROJECT FACTS: Wall Area = 25,000 SF; Max Ht = 36 FT

CHALLENGE: This high end residential development was to be situated on the steep bluffs above Pickwick Dam in Savannah, Tennessee. However, the site was too steep and unstable to build conventional access roads and building lots.

SOLUTION: Pinnacle Design/Build worked with the developer to design the most efficient combination of walls and usable building lots possible. Then we constructed a gently curving, combination MSE/soil nail wall to create the space required without detracting from the natural beauty of the surroundings.

VALUE: The Pinnacle Design/Build solution was implemented in less than three months and saved the developer significant money in terms of wall cost and lot production. Moreover, the appearance of the finished product fits well with the surroundings.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 9,000 SF; Max Ht = 30 FT

CHALLENGE: A below grade parking structure required thick, expensive reinforced concrete retaining walls to support lateral earth pressures and the structure to be constructed above it.

VALUE: The developer was able to save about 40% of the cost of traditional foundation walls and cut the timeline for completion by about 30%.

TN DOT I-40/SR171, Mount Juliet, TN

PROJECT FACTS: Wall Area = 2,000 SF; Max Ht = 19 FT

CHALLENGE: Commercial development near this busy interchange required construction of a new deceleration lane. Insufficient space in the area where SR 171 passes over I-40 necessitated construction of a retaining wall in the confined space under the bridge. However, the wall could not disturb with the existing bridge abutment or roadway.

SOLUTION: Pinnacle Design/Build engineered and constructed a soil nail retaining wall with a permanent segmental retaining wall facing to solve the problem.

VALUE: This system limited the amount of excavation required and disturbance to the surrounding infrastructure. The segmental block facing allowed the wall to blend nicely with the surroundings.

Piling Walls Project Profiles

Home Depot, New Albany, IN

PROJECT FACTS: Wall Area = 3,500 SF; Max Ht = 20 FT

CHALLENGE: This retail store was positioned into a hillside cut at the rear of this site. The cut required permanent support to allow for the construction of the rear access drive.

SOLUTION: A permanent Soldier Pile Retaining Wall with wood lagging was constructed to support the hill side excavation.

VALUE: The Soldier Pile Retaining Wall was constructed quickly and allowed for store construction to progress unimpeded.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 5,300 SF; Max Ht = 18 FT

CHALLENGE: The commercial development required retaining walls to create a below grade stormwater detention pond on a congested construction site with limited right of way.

Home Depot, Charlotte, NC

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

CHALLENGE: The retail developer needed a permanent retaining wall to support the heavy live loads of an adjacent rail spur. Excavation for a conventional retaining wall system in the area adjacent to the spur would have undermined the existing rails and interrupted service.

SOLUTION: Pinnacle Design/Build designed and constructed a permanent cantilever soldier pile retaining wall with wood lagging. In areas where the spur was not present, we engineered and built a stone faced MSE wall to reduce costs.

VALUE: The combination of (top down) retaining wall construction with MSE technology allowed the developer to reduce retaining wall costs without interfering with adjacent property operations.

Retail Store, Mt Juliet, TN

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 21 FT

CHALLENGE: A permanent retaining wall was required to support existing gas transmission line adjacent to a proposed retail building. Excavation for a conventional retaining wall system would have undermined this line requiring expensive loss of service and/or relocation.

SOLUTION: Pinnacle Design/Build designed and constructed a permanent cantilever soldier pile retaining wall with pre-cast concrete lagging. The precast concrete lagging incorporated an architectural finish.

VALUE: This solution allowed construction of the wall from the top down such that disturbance of the adjacent gas line was not required. The architectural finish allowed the structure to blend nicely with the surroundings.

Pinnacle Design/Build Gabion Structure Project Profiles

Nashville West, Nashville, TN

PROJECT FACTS: Wall Area = 2,000 SF; Max Ht = 9 FT

CHALLENGE: The retail developer was required to create a detention pond to allow the gradual release of storm water in a controlled manner.

SOLUTION: Pinnacle Design/Build engineered and constructed a gabion retaining wall to detain the initial flow of water from a storm event then release it gradually through the wall system.

VALUE: The developer achieved his storm water discharge in an environmentally friendly and cost effective manner.

Stormwater Detention Structure Project Profiles

Marketplace at Birmingham Village, Alpharetta, GA

PROJECT FACTS: Wall Area = 17,760 SF; Max Ht = 18 FT

CHALLENGE: The commercial developer required the site storm water detention basins to be more cost effective than cast in place concrete.

SOLUTION: Our engineers redesigned the detention basin walls from all cast-in-place concrete to a composite vegetated welded wire form /cast in place retaining wall.

VALUE: This solution provided 35% cost savings over the previously designed wall and provided more pleasing appearance.

Stonewyck Detention Basin, Alpharetta, GA

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

VALUE: This solution provided 25% cost savings over the previously designed wall and provided more pleasing appearance.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 5,300 SF; Max Ht = 18 FT

CHALLENGE: The commercial development required retaining walls to create a below grade stormwater detention pond on a congested construction site with limited right of way.

Highridge Industrial Park, Houston, TX

PROJECT FACTS: Wall Area = 11,000 SF; Max Ht = 11 FT

CHALLENGE: The developer of this industrial park wanted to increase his usable space by reducing the footprint of the required onsite stormwater detention pond . The Civil Engineer had recommended replacing the originally designed 3H:1V pond side slopes with near vertical cast-in-place concrete retaining walls.

SOLUTION: Pinnacle Design/Build designed and constructed near vertical MSE vegetated slopes in lieu of cast-in-place concrete walls.

VALUE: Our solution allowed the developer to effectively reduce the footprint of his detention pond and significantly decrease construction costs versus traditional cast in place concrete walls.

Providence Marketplace, Mt. Juliet, TN

PROJECT FACTS: Wall Area = 14,000 SF; Max Ht = 22 FT

CHALLENGE: The developer of this retail site was required to create a storm water detention structure in high ground water table and exposed surface rock conditions.

SOLUTION: Pinnacle Design/Build engineered and constructed a composite wall system consisting of a free standing cast-in-place concrete wall abutted to a stone faced MSE wall.

GeoStorage® Prototype, Weirton, WV

PROJECT FACTS: Storage Volume = 12,000 CF (Dimensions: 49 FT x 73 FT x 6 FT); Vehicle Loading = AASHTO H20

CHALLENGE: The developer of the GeoStorage underground detention system needed to construct a prototype of a new system being marketed to provide more cost effective solutions to conventional underground storm water detention systems. The system had never been constructed in full scale.

SOLUTION: Our engineers and construction managers provided the know-how to make the concept reality. The system was constructed without problems and performed as expected.

VALUE: By proving that the system could be built as designed, Pinnacle Design/Build helped to introduce a new system that will cut the overall cost of underground storm water detention by 25 to 50%!

Composite Wall Systems Project Profiles

Lowe's Home Improvement, Henderson, TX

PROJECT FACTS: Wall Area = 15,800 SF; Max Ht = 27 FT

CHALLENGE: The retail developer had to maximize the useable land on this site to accommodate the new store.

SOLUTION: Pinnacle Design/Build constructed both MSE vegetated retaining walls and the MSE segmental block walls along the property edge.

VALUE: The retaining wall structures were installed at lower cost than conventional types. The “green” retaining wall blended well with the stream channel.

Marketplace at Birmingham Village, Alpharetta, GA

PROJECT FACTS: Wall Area = 17,760 SF; Max Ht = 18 FT

CHALLENGE: The commercial developer required the site storm water detention basins to be more cost effective than cast in place concrete.

SOLUTION: Our engineers redesigned the detention basin walls from all cast-in-place concrete to a composite vegetated welded wire form /cast in place retaining wall.

VALUE: This solution provided 35% cost savings over the previously designed wall and provided more pleasing appearance.

Stonewyck Detention Basin, Alpharetta, GA

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

VALUE: This solution provided 25% cost savings over the previously designed wall and provided more pleasing appearance.

The Retreate at High Pointe, Savannah, TN

PROJECT FACTS: Wall Area = 25,000 SF; Max Ht = 36 FT

Blue Ridge Parkway Landslide Repair, Spruce Pine, NC

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 22.5 FT

CHALLENGE: Repair to the parkway at the several landslide locations.

SOLUTION: Pinnacle Design/Build was part of a design team that utilized soil nailing, tiebacks and MSE retaining walls to stabilize the slide and support the reestablished roadway.

VALUE: The solution of soil nailing and MSE retaining walls provided a high performance and reliable support system.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 5,300 SF; Max Ht = 18 FT

CHALLENGE: The commercial development required retaining walls to create a below grade stormwater detention pond on a congested construction site with limited right of way.

Piedmont West, Atlanta, GA

PROJECT FACTS: Wall Area = 9,000 SF; Max Ht = 30 FT

CHALLENGE: A below grade parking structure required thick, expensive reinforced concrete retaining walls to support lateral earth pressures and the structure to be constructed above it.

VALUE: The developer was able to save about 40% of the cost of traditional foundation walls and cut the timeline for completion by about 30%.

Home Depot, Charlotte, NC

PROJECT FACTS: Wall Area = 5,000 SF; Max Ht = 20 FT

VALUE: The combination of (top down) retaining wall construction with MSE technology allowed the developer to reduce retaining wall costs without interfering with adjacent property operations.

Providence Marketplace, Mt. Juliet, TN

PROJECT FACTS: Wall Area = 14,000 SF; Max Ht = 22 FT

CHALLENGE: The developer of this retail site was required to create a storm water detention structure in high ground water table and exposed surface rock conditions.

SOLUTION: Pinnacle Design/Build engineered and constructed a composite wall system consisting of a free standing cast-in-place concrete wall abutted to a stone faced MSE wall.

TN DOT I-40/SR171, Mount Juliet, TN

PROJECT FACTS: Wall Area = 2,000 SF; Max Ht = 19 FT

SOLUTION: Pinnacle Design/Build engineered and constructed a soil nail retaining wall with a permanent segmental retaining wall facing to solve the problem.

VALUE: This system limited the amount of excavation required and disturbance to the surrounding infrastructure. The segmental block facing allowed the wall to blend nicely with the surroundings.

The Woodlands, Charlottesville, VA

PROJECT FACTS: Wall Area = 5,600 SF; Max Ht = 12 FT

CHALLENGE: The developer of this upscale multi-family /collegiate residence development desired the appearance of natural, stacked stone walls around the amenity areas. However, the required wall heights would have rendered true stacked stone or standard masonry or concrete veneered walls extremely expensive.

SOLUTION: Pinnacle Design/Build engineered and constructed four stone faced MSE retaining walls designed to receive a stacked stone veneer.

VALUE: This solution saved 30 to 40 percent in wall construction costs over traditional approaches while presenting the desired architectural appearance. In addition, the overall construction duration was reduced significantly over the alternatives.

Verandas at Blairstone, Tallahassee, FL

PROJECT FACTS: Slope Area = 4,000 SF; Max Ht = 22 FT

CHALLENGE: An existing MSE segmental retaining wall (SRW) supporting this multi-family housing development was bulging and in danger of collapse.

SOLUTION: An engineered system consisting of soil nails through the existing wall (to stabilize the mass) and a matching SRW facing was constructed.

VALUE: This composite retaining wall solution of provided a quick and visually pleasing repair that did not require total demolition of the failing wall or major disruption to the residence of the community.

Retaining Wall Repair Project Profiles


		Killearn Lake Plaza - Retaining Wall Repair, Tallahassee, FL PROJECT FACTS: Wall Repair Area = 14,600 SF; Max Ht = 29 FT CHALLENGE: A segmental retaining wall experienced sliding and foundation failure shortly after construction. The wall had to be repaired quickly and correctly to avoid delaying the project. SOLUTION: Pinnacle Design/Build visited the site and assessed the geotechnical and construction quality control information available, designed and constructed a foundation improvement / drainage / wall system to get the project back on track. VALUE: Pinnacle Design/Build provided the engineering and construction expertise to quickly and cost-effectively determine what caused the failure and rebuild the structure to meet the client’s time and performance needs.

		Dick Lane Velodrome - Retaining Wall Repair, Atlanta, GA PROJECT FACTS: Wall Repair Area = 2,800 SF; Max Ht = 20 FT CHALLENGE: A large diameter headwall supporting the velodrome bicycle track failed from foundation scour. SOLUTION: Pinnacle Design/Build designed an MSE retaining wall with a welded wire form (WWF) stone facing to replace the failed headwall. Our crews carefully demolished and removed the failed structure and replaced it without incident. VALUE: The Pinnacle Design/Build solution saved the owner $100,000 when compared to other potential solutions.

		Sonic Drive-In - Retaining Wall Repair, Ringgold, GA PROJECT FACTS: Wall Area = 2,300 SF; Max Ht = 17 FT CHALLENGE: The retaining wall supporting the parking lot and drive thru lane of this restaurant failed due to scour at the toe. SOLUTION: Pinnacle Design/Build designed a scour mattress and an MSE buttress wall with a welded wire form (WWF) stone facing to shore the failed block wall. Our crews constructed this mattress and wall system in front of the failed structure and without incident. VALUE: The Pinnacle Design/Build solution was quickly constructed providing the required structural support with minimal disturbance to the restaurant operations. Compared to other options considered, this approach saved substantial time and money.

		Walgreens Pharmacy - Retaining Wall Repair, Germantown, TN PROJECT FACTS: Wall Repair Area = 2,900 SF; Max Ht = 18 FT CHALLENGE: The segmental retaining wall supporting the parking lot and drive thru lane of this pharmacy was settling and unstable. The pavement and fencing above the wall was damaged and could not be repaired until the wall was stabilized. SOLUTION: Pinnacle Design/Build designed an MSE buttress wall with a welded wire form (WWF) vegetated facing to shore the failed block wall. Our crews constructed this wall system in front of the failed structure and without disrupting store operations or disturbing the surrounding properties. VALUE: The Pinnacle Design/Build solution effectively stabilized the wall at less than half the cost of other options considered.

		American Self Storage Facility - Retaining Wall Repair, Austin, TX PROJECT FACTS: Wall Repair Area = 5,300 SF; Max Ht = 17 FT CHALLENGE: A poorly constructed cast-in-place concrete retaining wall supporting the slope next to this self storage facility failed catastrophically. The failure also put an adjacent high pressure gas line at risk. SOLUTION: Pinnacle Design/Build designed a gravity retaining wall using Redi-Rock ^TM large block units to replace the failed wall. Our crews carefully demolished and removed the failed structure and replaced it without incident. VALUE: The Pinnacle Design/Build solution saved the developer over $500,000 when compared to other potential solutions. In addition, the entire project (design to closeout) was completed in 28 days without damaging ore even taken the gas line of of service.

		Palisades Drive, Signal Mountain, TN PROJECT FACTS: Wall Area = 1,000 SF; Max Ht = 15 FT CHALLENGE: A century old, stacked stone retaining wall supporting Palisades Drive where it passes over a protected, environmentally sensitive creek was progressively failing. The failing wall put the busy roadway above and its passengers at risk. The wall had to be repaired without compromising the creek and with minimum impact to traffic. SOLUTION: Pinnacle Design/Build designed a gravity buttress wall using Redi-Rock™ large block units to stabilize the failing wall. Our crews carefully constructed the challenging repair without incident. VALUE: The Pinnacle Design/Build solution saved the town over $300,000 when compared to other solutions considered. In addition, the entire project (design to closeout) was completed in less than one month while keeping the Palisades Drive open to traffic.

		K-mart Store - Retaining Wall Repair, Bluefield, WV PROJECT FACTS: Wall Repair Area = 1,280 SF; Max Ht = 8 FT CHALLENGE: A segmental retaining wall supporting the parking lot of a K-mart store had experienced failure. The owner wanted the wall repaired without impacting store operations. SOLUTION: Pinnacle Design/Build designed a gravity retaining wall using Redi-Rock ^TM large block units to replace a portion of the failed retaining wall. Our crews carefully demolished and removed the failed structure, regraded the area and constructed the gravity replacement wall. VALUE: The Pinnacle Design/Build solution was implemented without complete demolition of the existing wall which would have impacted store operations. The partial reconstruction saved significant time and money when compared to other options.

		Verandas at Blairstone, Tallahassee, FL PROJECT FACTS: Wall Area = 4,000 SF; Max Ht = 22 FT CHALLENGE: An existing MSE segmental retaining wall (SRW) supporting this multi-family housing development was bulging and in danger of collapse. SOLUTION: An engineered system consisting of soil nails through the existing wall (to stabilize the mass) and a matching SRW facing was constructed. VALUE: This composite retaining wall solution of provided a quick and visually pleasing repair that did not require total demolition of the failing wall or major disruption to the residence of the community.

Pinnacle Design/Build Project Profiles