Extend Structural Value Without Adding Unnecessary Weight.
Grid decking gives bridge owners multiple ways to balance dead load, ride quality, installation speed, durability and long-term maintenance.
The Challenge Facing Bridge Owners
Bridge owners must maintain safe, reliable infrastructure while managing aging structures, constrained budgets, traffic impacts, inspection requirements and public expectations. The deck system affects more than the roadway surface, it influences the weight carried by the bridge, the duration of construction, the future maintenance program and the serviceability of the entire structure.
What's on Your Plate
- 01Aging bridge inventory
- 02Limited capital funding
- 03Traffic disruption
- 04Weight-restricted structures
- 05Emergency repairs
- 06Movable-bridge machinery
- 07Maintenance access
- 08Long-term durability
- 09Public accountability
- 10Buy America & domestic content
Owner Benefits of Grid Decking
Reduced Dead Load
Lightweight grid systems can reduce demand on existing girders, trusses, floor beams, bearings and foundations.
Preservation of Structures
Reducing deck weight may support rehabilitation without requiring unnecessary replacement of serviceable components.
Multiple Surface Options
Choose between open steel grid and several concrete-surface configurations.
Accelerated Replacement
Prefabricated or precast deck panels can reduce field construction and traffic closure durations.
Movable-Bridge Support
Lightweight systems can reduce demand on operating machinery and counterweight systems.
Adaptable Geometry
Grid panels can be fabricated around existing framing, skew, cross slope, drainage and bridge geometry.
Lifecycle Flexibility
Different systems allow the owner to prioritize weight, ride quality, span, durability, inspection access or maintainability.
Domestic Fabrication
MCS manufactures bridge products in Bedford, Pennsylvania, supporting American infrastructure and domestic supply-chain goals.
Evaluating rehabilitation options? Tell us about the structure and ownership priorities.
Plan Your ProjectGrid Systems From an Owner's Perspective
Open Grid
Lowest deck weight; excellent drainage; rapid installation; strong fit for movable structures.
- Lowest deck weight
- Effective drainage
- Rapid installation
- Fits movable and weight-sensitive structures
- Different ride/noise vs solid-surface decks
Exodermic®
Solid concrete riding surface with long-span capability and accelerated replacement potential.
- Solid concrete riding surface
- Long-span capability
- Significant weight reduction
- Accelerated replacement potential
- Requires composite design & panel detailing
Half-Filled Grid
Balanced deck weight and solid riding surface with precast or cast-in-place flexibility.
- Balanced deck weight
- Solid riding surface
- Precast or cast-in-place flexibility
- Useful for rehabilitation
- Concrete density affects final weight
Fully Filled Grid
Robust concrete deck with strong load distribution suitable for demanding service.
- Robust concrete deck
- Strong load distribution
- Familiar solid roadway
- Suitable for demanding service
- Greater dead load than other options
Supporting Asset Preservation
- STEP 01
Reduce Dead Load
Lower demand on main girders, trusses, floor beams · Reduce loads on bearings, piers and abutments · Extend service life of foundations
- STEP 02
Movable-Bridge Support
Reduce demand on operating machinery · Lower counterweight requirements · Improve mechanical reliability
- STEP 03
Reduce Disruption
Prefabricated deck panels · Precast options and staged construction · Night, weekend and closure-based installation
- STEP 04
Plan for Lifecycle
Coating and corrosion strategy · Inspection access · Replaceable panel concepts
Reducing Public and Operational Disruption
The right grid-deck system can support an installation strategy designed around traffic, transit schedules, marine navigation, rail operations or emergency access. No bridge deck is maintenance-free; the goal is to select a system whose inspection and maintenance requirements align with the owner's operating environment, workforce and long-term asset plan.
- Prefabricated deck panels
- Precast concrete options
- Reduced field forming
- Shorter closure periods
- Night/weekend installation potential
- Staged construction
- Reduced crew exposure to traffic
- Predictability of shop fabrication
Information Owners Can Share
MCS can participate alongside the owner's engineering team to help identify relevant system and fabrication considerations.
Plan Your Project- Existing bridge plans
- Inspection reports
- Current deck type
- Structural concerns
- Weight restrictions
- Desired riding surface
- Traffic restrictions
- Closure limitations
- Maintenance objectives
- Domestic-content requirements
- Desired project schedule
Common Questions
No. Grid decking can be used for rehabilitation, deck replacement, new structures, movable bridges and specialized infrastructure.
Open grid is generally the lightest, but the appropriate system depends on the required surface, loading and structure.
Yes. Exodermic, half-filled and fully filled systems provide concrete riding surfaces.
Prefabricated and precast construction can support shorter closure strategies when coordinated with the overall project.
MCS can support system evaluation, but final selection and design remain subject to the owner and engineer of record.
Choose a Deck System Around the Entire Life of the Bridge.
Tell MCS about the structure, operating environment, construction limitations and long-term ownership goals. We will help connect your team with the right grid-deck information.