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Read moreCase Study: Bridge Bearing Supply for a Multi-Span Overpass Project
22 September, 2026 | Admin
A contractor working on a multi-span overpass project needed bridge bearings across several spans, each with slightly different load and movement requirements depending on span length and pier height. Coordinating that kind of bridge bearing supply across a multi-span structure is where many projects lose time — unless the specification and fabrication are handled as one process rather than several separate ones.
The Situation
Rather than a single bearing specification, the project needed several different elastomeric bearing configurations across its spans — different plan dimensions, different laminated steel plate counts, and different movement allowances depending on span length and pier height. The contractor’s procurement timeline didn’t allow for multiple separate supplier engagements, one per span type. Every additional supplier touchpoint meant another submittal cycle, another lead time, and another point where the installation schedule could slip. On a project of this scale, a mismatched bearing — one sized for the wrong rotation allowance or the wrong vertical load — is not a minor fix once piers are cast and beams are set; getting the specification right before fabrication starts matters more than on a single-span structure.
What Changed
Working from the full set of structural drawings, Diode Trading EST’s engineering team confirmed the bearing specification for each span configuration in a single review cycle rather than working through them one at a time. Load capacity, rotation allowance, and horizontal movement were checked against each span’s requirements, and bearings were fabricated and delivered as one coordinated order rather than piecemeal shipments staggered across the project timeline. Reinforcement plate counts and elastomer layer thickness were adjusted span by span so that every bearing matched its own load and movement profile rather than applying one conservative spec across the whole structure, which would have added unnecessary bulk and cost to the lighter spans.
The Outcome
All span configurations were supplied to the project’s installation schedule without a separate re-engagement for each bearing type. Consolidating the order into a single review-and-fabrication cycle proved a more efficient process for multi-span projects than sourcing each configuration separately from scratch, and it gave the contractor one point of contact and one Material Test Certificate package to track instead of several.
Why Coordinated Bridge Bearing Supply Matters for Multi-Span Projects
Multi-span overpass and bridge structures rarely use one bearing type throughout — span length, pier stiffness, and expected thermal movement all vary along the structure, and bridge bearings are specified individually to match each location’s load and movement demands. When every configuration is quoted, reviewed, and fabricated as a single coordinated package instead of separate one-off orders, contractors avoid the compounding delay of repeated submittal cycles and get a single traceable batch of Material Test Certificates for the whole structure. See our full Bridge Bearing Pads range for the elastomeric bearing types Diode Trading EST supplies across Saudi Arabia’s bridge and overpass infrastructure projects.
FAQ
1. Can Diode handle multiple bearing configurations for one project in a single order?
Yes — provide structural drawings for all span configurations and we can quote and coordinate delivery as one order, rather than reviewing and fabricating each span type separately.
2. What information do you need to confirm a bearing specification?
Span length, pier height, expected vertical load, and required rotation and horizontal movement allowance for each span, drawn from the structural drawings or design engineer’s bearing schedule.
3. Do coordinated multi-span orders come with full Material Test Certificates?
Yes — every bearing in the order is supplied with Material Test Certificates confirming compound properties and load-bearing capacity, packaged as one traceable set for the whole project rather than separate certificates per shipment.
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