Figure 32. Damage in the breakaway region of the posts, just below ground level. Photos A, B, C, and D.

1. DS-65 pine. This photo shows two halves of a cross section of timber. The impact area is splintered intensely. So intensely in fact, that the first half of the timber is split lengthwise in two separate halves itself. The points of impact are jagged and rough, torn from each other.

2. Grade 1 pine. This photo shows two halves of a cross section of timber. This split is somewhat clean though jagged. The two pieces would appear to still fit together in a semi-normal fashion regardless of the impact.

3. Grade 1 frozen pine. This photo shows two halves of a cross section of timber. The impact area is completely clean. The timber is split into without splintering or any visible tearing of the grain. The break is clean and concise.

4. Grade 1 fir. This photo shows two halves of a cross section of timber. The impact has caused minimal splintering, though the effect does exist. The splintered pieces on the left-hand piece of the timber are bent downward and are finite. The two pieces look as if they would not fit back together too easily if at all.

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FHWA-HRT-05-096