Bridge Expansion Joints: COMPRESSION_SEAL
Bridge expansion joint types and movement capacities — compression seal, strip seal, modular, finger plate, silicone sealant — with total movement range, opening limits, waterproofing, and applicable span ranges
| joint type | size rating | install temp range F | max opening in (in) | min opening in (in) | notes | span range ft | total movement in (in) | typical cost | water tight |
|---|---|---|---|---|---|---|---|---|---|
| COMPRESSION_SEAL | CS-1 | -10 to 120 | 1.25 | 0.5 | Closed-cell neoprene; compression ratio 50-85%; total movement up to 1 in; installed in compression | up to 100 | 1 | Low | Yes |
| COMPRESSION_SEAL | CS-2 | -10 to 120 | 2.5 | 1 | Closed-cell neoprene; total movement up to 2 in; most common compression seal size | up to 150 | 2 | Low | Yes |
| COMPRESSION_SEAL | CS-3 | -10 to 120 | 3.75 | 1.5 | Closed-cell neoprene; total movement up to 3 in; upper limit for compression seals | up to 200 | 3 | Low-Moderate | Yes |
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