| 31. | Substructure : The abutments are of a cellular concrete construction.
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| 32. | The low abutments determine the size of the upstretched arches.
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| 33. | The teeth used to support the bridge are called abutments.
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| 34. | Staircases in each bridge abutment allow access to the walkway.
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| 35. | Warren County removed remaining bridges and abutments over the next several years.
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| 36. | The bridge was closed in 1969 because the abutments were declared unsafe.
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| 37. | These abutments bear the passive vertical load of the open structure itself.
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| 38. | Geofoam was also used in embankments and bridge abutments for base stability.
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| 39. | Stone bridge construction started with the excavation of foundations for the abutments.
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| 40. | Two concrete abutments support the bridge above mean water level.
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