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| Bridges--Evaluation (3) |
| Polytechnic University of Puerto Rico--Graduate students--Research (3) |
| Scour at bridges (3) |
| Bridges--Design and construction (1) |
| Bridges--Evaluation (3) |
| Polytechnic University of Puerto Rico--Graduate students--Research (3) |
| Scour at bridges (3) |
| Bridges--Design and construction (1) |