Colorado Office

Redrocks


3870 Platte Ave.
Sedalia, CO 80135
Phone: 303.688.8244

Colorado Team Members

Timothy V. Gumina - President

Timothy V. Gumina, with over twenty-seven years of experience in the repair of structural systems, is a recognized authority of construction-engineered systems, materials and their applications. He is responsible for overseeing Restruction Corporations highly specialized work on the repair of parking garages, buildings, bridges, dams and pavements throughout the United States.

Mr. Gumina is responsible for the day-to-day management of Restruction Corporation’s business operations, oversees estimating, business development, and Utah and Arizona offices. In addition, he regularly consults with architects, engineers, and owners developing solutions to complex constructability issues. Often, these issues involve structural repair problems that must be executed around a structures operational need, while being cognizant of safety issues.

Mr. Gumina was formerly the Vice President of Field Operations for Restruction Corporation. He performed the project management responsibilities for projects ranging in size from a few hundred to 3.5 million dollars. He was responsible for the development of many of the structural repair techniques and procedures currently employed by Restruction Corporation’s field crews. He developed the training programs currently practiced to help improve the quality of the constructed product and advance the qualifications of individual crafts people employed by Restruction Corporation. He also developed the current safety program.

Mr. Gumina is a member of the International Concrete Repair Institute (ICRI), Associated General Contractors (AGC), American Concrete Institute (ACI), and Structural Engineers Association of Colorado (SEAC). He is currently a member of the ICRI, Committee on Evaluation of Concrete.

Mr. Gumina holds a Bachelor of Science Degree in Metallurgical Engineering from the Colorado School of Mines, Golden, Colorado. He regularly attends educational seminars and meetings of professional associations to keep current on management techniques, building construction, preservation and rehabilitation technology.

Mr. Gumina has been a guest lecturer on concrete repair techniques and safety procedures for the Pre-stressed Concrete Institute and at Restruction Corporation seminars. He has presented a paper at the IX International Congress on Polymers in Concrete, Bologna, Italy and has had papers on construction techniques, concrete and masonry repair published in Concrete Repair Bulletin and American Society of Civil Engineering proceedings.
Michael R. Wyman - Executive Vice President

Michael R. Wyman is a materials and cost engineer with twenty nine years of experience in construction and structural repair. He manages technical and cost evaluation for the maintenance and repair projects undertaken by Restruction Corporation as well as Corporate Risk Management. His knowledge of field engineering techniques, structural repair procedures and repair materials enables him to work closely with consulting engineers, architects and owners seeking cost-effective solutions that insure a structure’s stabilization and long-term integrity.

As one of Restruction Corporations project managers, he has supervised a wide variety of projects for Restruction Corporation including a $5.4 million dollar rehabilitation of a cast in place parking garage in Denver Colorado. The project included the use of hydrodemolition of the unsound concrete in order to meet the owners completion date. He also managed a $1.9 million dollar stadium repair project in Arizona which involved a substantial amount of shoring and jacking of portions of the structure. He directed the load testing and repair of double tee concrete beams for a four-level parking garage at a privately owned shopping mall in Ogden, Utah, and the removal, waterproofing and replacement of the open-air concrete game deck above the Student Center at the University of Wyoming in Laramie.

Mike has also been involved in numerous structural strengthening projects using a variety of materials including structural steel as well as carbon and glass composites. These projects include the installation of steel beams and columns or composites to strengthen deteriorated structural elements, correct deficiencies in existing structures, or accommodate changes in loading conditions.

He received his Bachelor of Science degree in Metallurgical Engineering from the Colorado School of Mines in Golden, Colorado, and continues to attend construction industry seminars presented by professional and trade organizations.

Mike is a member and Past President of the Rocky Mountain Chapter of the American Concrete Institute, and has spoken on “Crack Injection: Methods, Materials and Costs” for the World of Concrete seminar series on concrete repair, sponsored by the American Society of Concrete Contractors.
Bruce A. Collins - Vice President, Business Development

Bruce Collins is responsible for identifying opportunities, estimating and managing Restruction Corporation highly technical structural repair projects. As Vice President of Business Development, Mr. Collins has managed large scale repair projects from concept to completion. He has used various problem identification methods such as petrography, corrosion rate monitoring, destructive testing and chloride ion content testing in pre-construction service work to determine causes of structural deterioration.

As part of the Restruction Corporation business development group since 1992, Mr. Collins has managed structural repair construction projects in parking garages, industrial facilities, commercial buildings, dams and bridges. He is versed in many repairs techniques including external post tensioning, hydro-demolition, rebar stitching, carbon fiber reinforced polymer strengthening, shoring and jacking.

Mr. Collins holds a BSc. Chemical Engineering with a minor in Economics from the Colorado School of Mines, Golden Colorado. He was elected to the National Board of Directors, International Concrete Repair Institute in 1997 and served until 2008. He was voted and ICRI “Fellow” in 2002. He worked on numerous ICRI guidelines including Hydro-demolition, Pull-off Bond Testing, Selection of Strengthening Systems and Post Tension Repair. He was a voting member of the ICRI Technical Activities Committee for 6 years. At The American Concrete Institute, Mr. Collins is a voting member on ACI Committee 364 “Rehabilitation of Concrete Structure” and has been a professional speaker for ACI Concrete Repair Basics and ACI Concrete Repair Workshops.

Bruce has published project papers in Engineering News Record, Parking Magazine, The Concrete Repair Bulletin and Power Magazines ,PTI Journal and has presented project papers at SSPC, ICRI and ACI National Conventions.

As part of Restruction Corporation since 1992, Bruce has had hands on experience on major repair project. These projects include bridges, Vail Pass segmental bridges, airport runway repair in Fort Morgan and at Stapleton International Airport, and repairs at the Citadel Mall in Colorado Springs. His estimating responsibilities have included major structural repair projects bid by Restruction Corporation on dams and buildings.

He holds a Bachelor of Science degree in Chemical Engineering with a minor in Economics from the Colorado School of Mines in Golden, Colorado. Bruce was elected to the National Board of Directors of the International Concrete Repair Institute in 1997 and is still serving. He is currently Sub-committee Chair for I.C.R.I. Guideline #03730. He was named to the I.C.R.I. Technical Activities Committee and voted an I.C.R.I “Fellow” in 2002. Bruce has authored papers published in ENR Magazine, Concrete Repair Bulletin and Parking Magazine. The PTI Journal, as well as the Shotcrete magazine. He has been a speaker for ACI Concrete Repair Basics and Concrete Repair Workshop Seminar Series since 1996.

Bruce is an active member of the American Concrete Institute and the Structural Engineers Association of Colorado. He regularly presents seminars for Restruction Corporation and attends educational seminars on the repair of structures as well as seminars related to construction and engineering.
Michael E. Lutonsky - Vice President, Field Operations

Mr. Lutonsky has been involved in structural repair, strengthening and construction management since joining Restruction Corporation in 1990. Mike manages a very talented and diverse group of managers and field supervisors that are considered the leaders in the industry of structural repair. Mike regularly attends educational seminars on construction safety as well as repair seminars to maintain a current level of structural repair materials, techniques and procedures. He has several safety training certifications and is trained in multiple repair procedures and use of materials.

Staying true to our Mission Statement of meeting our client’s needs with exceptional quality, value, and excellence with security for our employees. Mike manages our safety program to ensure our employees are accident free and OSHA compliant, our employee training program ensuring our employees are trained in the repairs they are performing so our clients have qualified personnel at every jobsite and our equipment and vehicle fleet maintenance program to ensure we occupy the highways safely and when we get to the job – working, well maintained equipment accompanies each crew.

As a project Superintendent, Colorado Operations Manager and now Vice President of Field Operations with Restruction some of Mike’s crowning achievements include the managing of the Castlewood Canyon Bridge Arch rehabilitation for the Colorado Department of Transportation. This project included the removal of delaminated concrete along the arch of the bridge and replacing it with a wet mix shotcrete while suspended from scaffolding below the bridge. An epoxy-bonded carbon fiber was installed to increase the load carrying capacity of the structural arches. This project has received many awards including Colorado Contractor’s Association’s Sub Contractor of the year for Restruction Corporation and Project of the year from the American Concrete Institute.

Mike’s project management resume includes numerous projects that required creative solutions to complex rehabilitation and structural repair projects. He supervised the rehabilitation of the structural steel super structures and foundation that supports the Incline Railway at The Royal Gorge in Canon City, Colorado. Experience includes complex concrete placements, pre-stressed and post-tensioning, high rises, public stadiums, dams, bridges and runways.
Steed Lopez - Business Development

Mr. Lopez has been employed with Restruction Corporation Since 1996. He has had several titles within the company, Repair technician, Shop Superintendent, and Project Superintendent. Where he was directly involved in project scheduling, subcontractor management, client relations and coordination with the Engineer of Record on his projects. Mr. Lopez has extensive experience with structural repairs including concrete repair, steel repair, carbon fiber application, and concrete overlays, cement grouting, epoxy grouting, poly urethane grouting. As well as extensive field experience with industry leading repair materials and repair methods.

Mr. Lopez is currently working in the Business Development department where he is responsible for assisting in the development of new clients, new web design, and new marketing concepts. As well as continuing to develop, current and past client relationships. Mr. Lopez represents Restruction Corporation as a member of BOMA, Rocky Mountain Chapter of ACI, also ACI’s “Strategic Research Repair Council”, (SRRC).

Major Project Experience:

Foothills Water Treatment Plant, Littleton, Colorado:
Project consisted of concrete spall repairs, urethane injection, epoxy injection, and joint sealant for a 25 million gallon water tank. Work had to be completed during a very condensed schedule do to the shutdown window provided by the city. Project consisted of over 2,700 LF of water mitigation work.

Wolford Mountain Reservoir Pipe Grouting, Kremmling, Colorado:
Project consisted of grouting of concrete voids due to poor consolidation in the concrete incased steel outlet pipe. Work had to be completed in a condensed schedule due to the short down time in which the pipe could be shutdown.

Goose Pasture Reservoir, Breckenridge, Colorado:
Project included concrete repairs to the concrete service spillway, grouting of voids located below the slab, setting of soil anchors, and installation of new under drain bedding and piping. In order to complete Restruction had to overcome difficult access as well poor weather conditions.

Royal Gorge Incline Railway, Canon City, Colorado:
General structural strengthening of funicular tramway supports. Required extremely close working relationship with engineer. Work consisted of unique access systems, concrete removal and replacement at rock abutments and concrete supports, jacking of rock anchors using center hole rams, steel framing for lateral bracing and steel coating protection.

128th Ave. and I-25 Bridge, Denver, Colorado:
Projected consisted of repairs to damaged concrete pier supports. These repairs consisted of removal and replacement of damaged concrete as well as installation of carbon fiber to strengthen bridge.

University of Colorado Arnett Hall, Boulder, Colorado: This project consisted of strengthening of existing floor slab around floor penetrations by application of carbon fiber.
Gary M. Metz - Project Manager

Gary M. Metz is a project manager with seven years of experience in construction and structural repair. Gary develops, estimates, and manages repair projects undertaken by Restruction Corporation. He is well versed in structural repair procedures, field engineering techniques, and repair materials. He regularly works with engineers, architects, and owners to develop repair methodology and techniques for complex projects.

Gary has successfully managed some of the largest projects in Restruction Corporation’s history including a $5.4 million dollar repair to the Denver Sheraton Parking Garage. The project consisted of approximately 70,000 square feet of concrete repairs. A large portion of these repairs were completed via hydro demolition techniques to shorten schedule as well as impact on the hotel. Major coordination was required as the hotel directly above the garage was still operational.

Mr. Metz also managed a $1.15 million dollar repair project of an eighteen story high rise concrete frame condominium building with masonry facade deterioration due to inadequate structural support and lack of expansion joints. Work entailed selective removal of masonry, installation of new structural supports, installation of expansion joints, and replacement of masonry.

Gary’s project management experience also includes concrete rehabilitation, steel rehabilitation, post tensioning repair, fiber reinforced polymer strengthening, passive cathodic protection, epoxy injection, urethane injection, waterproofing, epoxy overlay’s, and historic structure rehabilitation.

In 2005 Mr. Metz received a Bachelor of Science degree for Civil Engineering and a Minor in economics from Colorado School of Mines, Golden CO. He is a member of the Rocky Mountain Chapter of the American Concrete Institute and regularly attends educational seminars and meeting from various professional associations to stay current on management, repair, and construction techniques.
George Nenoff - Senior Superintendent

George Nenoff is a Senior Project Superintendent for Restruction Corporation. George has been doing structural repair since 1989. As Project Superintendent he is responsible for managing Restruction Corporation’s skilled and talented crews. He is also directly involved in project scheduling, subcontractor management, client relations and coordination with the Engineer of Record on his project. Mr. Nenoff has extensive experience with structural repairs including concrete repair, steel repair, carbon fiber application, concrete overlays, and epoxy overlays. George is a highly requested Superintendent by Restruction Corporation’s repeat clients and Engineers of Record.

Certifications and Training
OSHA 30 hr First Aid certified; CPR certified; Forklift Certified; Aerial Lift certified; Confined Space; LockOut TagOut; Supported Scaffold Safety trained; Suspended Scaffold Safety trained; Fall Protection trained; Respirator Use trained; Hearing Protection trained


Major Restruction Corporation Project Experience

Denver Sheraton Garage Repairs: $5.4 million dollar repair project to three level subterranean garage. Work consisted of approximately 70,000 square feet of concrete repairs. A large portion of these repairs were completed via hydro demolition techniques to shorten schedule and impact. Major coordination required as the hotel directly above the garage was still operational.

Huntington House Condominiums: $1.15 million dollar repair project. Eighteen story high rise concrete frame condominium building with masonry facade deterioration due to inadequate structural support and lack of expansion joints. Work entailed selective removal of masonry, installation of new structural supports, installation of expansion joints, and replacement of masonry.

Arapahoe Plaza Parking Structure: Post tensioned concrete garage. Work entailed concrete repairs to top and bottom surface, post tension strand repairs, post tension block out repairs, expansion joint replacement, concrete beam repairs, steel frame installation to support damaged beams, slab on grade removal and replacement, and drain installation on deck.

10th Avenue and Lakewood Gulch Bridge: Conventionally reinforced bridge, repairs consisted of: structure jacking, concrete repairs, setting of new support caissons, topping slab removal and replacement, slope regrading, placement of rip rap, and concrete boulder grouting. Water damming, diversion, channeling, and other various means of protection were used to prevent debris from entering stream and gain access to the work area.

Denver International Airport Annual Airfield Pavement Joint Rehabilitation: Multiple years of completing large quantities of concrete repairs. Extreme safety and schedule coordination required while operating on all parts of the airfield. Repairs areas had to be returned to operational status daily.

Royal Gorge Incline Railway, Canon City, Colorado: General structural strengthening of funicular tramway supports. Required extremely close working relationship with engineer. Work consisted of unique access systems, concrete removal and replacement at rock abutments and concrete supports, jacking of rock anchors using center hole rams, steel framing for lateral bracing and steel coating protection.

Aspen Alps Condominiums, Aspen, Colorado: In-situ foundation wall replacements.

National Western Building Complex: Structural bracing of masonry roof parapet wall and elevations changes to existing cricket wall to ensure proper water drainage.
Jacob H. Lutonsky - Project Engineer I

Jake Lutonsky is one of the newest additions to the Restruction Corporation team. As a Project Engineer, with a Bachelor of Science Degree in Construction Management from Colorado State University in Fort Collins, Colorado, some of Mr. Lutonsky’s responsibilities include keeping our clients up to speed on project progress, helping engineers in solving complex constructability issues, and assisting superintendents in the field in keeping a project under budget and on schedule.

Jake worked as a field employee over summers and holiday breaks while attending Colorado State University, and while doing so gained experience in runway repair at Denver International Airport, water treatment tanks, and parking structures. As a field employee, Mr. Lutonsky gained the experience needed for success in Project Management. Since becoming a Project Engineer, he has estimated and managed jobs with cementitious coatings, wood structures, plaza rehabilitation, and post tensioned slab on grade.

In a newly leased office space, Mr. Lutonsky helped the owner develop a demolition and repair procedure needed to install new plumbing in a post tensioned slab on grade. The work consisted of excavating concrete to expose post tensioned tendons which were cut in order to install new plumbing in existing building. After the new plumbing was installed, the cut tendons were repaired and concrete slab was replaced.

In Denver, Colorado Jake managed a project that consisted of removing existing topping and waterproofing from a 3200 square foot street level breezeway structure. The original structure was replaced with a new waterproofing membrane and black concrete topping to allow proper drainage. Jake coordinated the construction of this project around the noise and debris restrictions requested by high profile companies in the adjacent office building, as well as the Grand Hyatt Hotel, while keeping the project on schedule.

Mr. Lutonsky is 10 hour OSHA safety certified, and has completed many other safety training programs. He has attendee ACI seminars structured towards concrete repair, and is currently a member if the Rocky Mountain Chapter of ACI.
Jaime Castro - Superintendent

Mr. Castro is a Project Superintendent and has been employed with Restruction Corporation since 1999. As Project Superintendent he is responsible for managing Restruction Corporation’s skilled and talented crews. He is also directly involved in project scheduling, subcontractor management, client relations and coordination with the Engineer of Record on his projects. Mr. Castro is bi-lingual. He has experience with all manufactures products, shoring, jacking, expansion joint replacement, and concrete repairs.

Certifications and Training
OSHA 10 hour
First Aid/CPR
Confined Space
Lock Out Tag Out
Supported Scaffold
Fall Protection

Restruction Corporation Major Project Experience

Denver Sheraton Garage Renovation-Project consisted of 60,000 sq. ft. of partial depth concrete deck spall repair, 11,000 square feet of concrete soffit spall repair. The project involved reinforcing bar welding, hydro demolition and structural shoring.

Arapahoe County Municipal Building Structural Rehabilitation- Project required removal and replacement of concrete sidewalk over tenant space, removal and replacement of structural steel members and new waterproofing. Work was completed while facility was in operation.

DCP Midstream Platteville Compressor base Repairs- 4 large concrete foundations for gas processing compressors delaminated at the top mat of reinforcing steel. Removal and bonding of new proprietary high strength repair concrete was required.

Bridger Valley I-80 Bridge Repair- Concrete repairs to fire damaged bridge near Green River Wyoming. Concrete repairs included silica fume modified shotcrete repairs at bridge girders and deck soffit. Section enlargement of concrete columns was also completed.

24- Hour Fitness Garage- Installation of extra heavy duty traffic coating on double tee structure over finished tenant space provided waterproofing to the repaired structure.
Saul Gonzales - Superintendent

Mr. Gonzales is a Project Superintendent and has been employed with Restruction Corporation since 2000. As Project Superintendent he is responsible for managing Restruction Corporation’s skilled and talented crews. He is also directly involved in project scheduling, subcontractor management, client relations and coordination with the Engineer of Record on his projects. Mr. Gonzales is bi-lingual. He has experience with all manufactures products, shoring, jacking, expansion joint replacement, and concrete repairs.

Certifications and Training
OSHA 10 hour
First Aid/CPR
Confined Space
Lock Out Tag Out
Supported Scaffold
Fall Protection

Restruction Corporation Major Project Experience

Denver Sheraton Garage Renovation-Project consisted of 60,000 sq. ft. of partial depth concrete deck spall repair, 11,000 square feet of concrete soffit spall repair. The project involved reinforcing bar welding, hydro demolition and structural shoring.

Denver Health Parking Garage- Project involved removal and replacement of control and expansion joints. Work also included shoring and structural concrete repair on precast inverted and double tee elements. Work was completed while facility was in operation.

Chase Field- Work included concrete removal and replacement on 300 level of the Diamond Back’s Ball Park in Arizona. The new concrete was water proofed with a urethane deck coating.

24- Hour Fitness Garage- Installation of extra heavy duty traffic coating on double tee structure over finished tenant space provided waterproofing to the repaired structure.
Scott Leidenberger - Superintendent

Scott Leidenberger has been employed with Restruction Corporation Since 1992. Scott is the superintendent for most wood repair and strengthening projects completed by Restruction Corporation.

Certifications and Training:

• Forklift Safety
• Hazard Communications
• Man Lift Safety
• Supported Scaffold
• CPR
• Fall Protection
• Respirator Fitting
• Post Tension Certification
• First Aid

Major Restruction Corporation Project Experience

Hoffman Heights Wood Truss Strengthening:
On-going private sector project completed in three separate phases for the same project owner. Project includes strengthening of wood members with “sister” steel members.

Massey-Phipps Residence, Gunnison County Colorado:
Project included structural modifications, structural strengthening and masonry restoration on historical stone structure.

Montrose County Courthouse, Montrose Colorado:
Project included structural strengthening of historical sandstone structure, masonry crack pointing and foundation grouting.

Denver Health Utility Tunnel Repair, Denver Colorado:
Project involved structural repair of concrete utility tunnel including innovative use of pre-cast concrete pieces to provide lateral support to walls and reduce schedule time for project completion.

Park Central Parking Structure, Denver, Colorado:
Project included removal, replacement and re-stressing of post tension strands in a reinforced concrete parking garage. Bonding new concrete to existing concrete in partial depth, partial area concrete removal and replacement was also included.

ZCMI Mall Parking Structure, Salt Lake City, Utah:
The project included removal of deteriorating structural concrete due to corrosion of reinforcing steel. A large concrete overlay was placed bonding new concrete to existing.

Calvary Church, Arvada, Colorado:
Project included strengthening and repair of steel joist bearings.

Amoco Building Parking Structure, Denver Colorado:
Structural concrete removal and replacement in a 4 story parking structure located below grade, servicing a high rise building encompassed this project. Corrosion of reinforcing steel in the concrete caused the deterioration. A protection sealer was installed upon completion of concrete repairs.

Mark A. Johnson - Shop Superintendent

Mr. Johnson is our Colorado Shop Superintendent and has been employed with Restruction Corporation from 1991 to 1995 as a repair tech. presently he has been with Restruction Corporation as Colorado Shop Superintendent since 2008. As Shop Superintendent he is responsible for managing and maintaining Restruction Corporation’s Vehicle Fleet, Tools and Equipment.

Certifications & Training:
OSHA 40 hr., First Aid, CPR, Rough Terrain and Counterbalanced Forklift Certified, Aerial Lift and Scissor Lift certified, Confined Space, Lockout Tag Out, Supported Scaffold Safety trained, Suspended Scaffold safety trained, Fall Protection trained, Respirator Use trained, Competent Person trained, DOT HAZMAT General Awareness/Familiarization Trained and IVES Defensive Driving Trained.

Major Work Experience:
From 1991-1995 Mr. Johnson was a repair tech for Restruction Corporation; he worked on many projects including Fairview High School (Caulking precast panels, epoxy injection), Cinderella City (Concrete Repair and some Structural Repair), DIA (Concrete Repair and Epoxy Injection on runways).From 1995 to 2008 Mr. Johnson worked in the rental business as a heavy equipment field service mechanic, he worked on small equipment up to D9 dozers. Mr. Johnson is certified on repairs with many different manufactures. In 2008 Mr. Johnson came back to Restruction Corporation to take the Colorado Shop Superintendent position.

Some of the systems in place at Restruction Corporation that Mark manages are:

• An inventory tracking system for our material, safety supplies and PPE.
• Chemical storage and disposal compliance: this follows the guidelines laid out by the Colorado Department of Public Health and Environment for chemical storage and disposal.
• Equipment tracking system “Tool Tracker” which allows us to bill our jobs correctly, track the costs of our equipment and track our equipment inventory.
• Vehicle and equipment maintenance program: all of our equipment is on a strict maintenance schedule including DOT certifications, registrations, safety inspections and service requirements.
• Hands on employee equipment operator training which ensures our employees are qualified to operate our equipment safely.
Jason Gardner - Business Developement

Mr. Gardner is one of the newest additions to the Restruction Corporation Team. In His short time with the company, Mr. Gardner has been involved with some major projects:
• Castle Rock Water Tank - Post tension repairs, concrete spall repairs and weatherproof coating.

• Meridian Water Tank - concrete spall repairs, epoxy injections and grouting.

• Buckley Air Force Base Box Culvert Repair - concrete spall repairs and weatherproof coating.

• Cheeseman Park Apartments - concrete spall repairs.

Curtis Hotel - concrete spall repairs, tie bar removal/replacement and concrete removal/replacement.
Mr. Gardner has 20+ years of construction and mining experience, with numerous types of certifications. Mr. Gardner has a Bachelor’s Degree from the University of Northern Colorado.
Mr. Gardner is currently working in the Business Development where he is responsible for assisting in the development of new clients for the Arizona and Utah locations.

Colorado Clients

Denver Water
Vail
Kiewit Western
Denver International Airport
Hyatt
Denver Health
City of Colorado Springs
Jefferson County
Town of Breckenridge
Colorado River District
University of Wyoming
Cordon Pharma

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