Culverts There are two ellipse-shaped culverts located at Columbia Cemetery, both of which are constructed of reinforced concrete. The west culvert is 4” thick and has inside dimensions of 60” wide by 36” tall. The east culvert is 5 ½” thick and has inside dimensions of 72” wide by 42 ½” tall (it may be taller as quite a bit of sediment has collected at the base of the culvert). These two culverts are replacements that were installed in the 1990s. From a surficial perspective, the culverts are in fair condition. Although they appear to be performing their function, there is one area where concrete has spalled and exposed rebar. There is also some scour of the cement paste exposing the aggregate of the concrete. These culverts were not reviewed by a civil engineer as part of this assessment and they will need to be in the future to determine if they are adequate for the flow of water and loads of the walkway surface.
Figure 1-22. East side of the easternmost culvert, 2022 (source: JVA)
Figure 1-23. East side of the westernmost culvert, 2022 (source: JVA)
Figure 1-24. Concrete spalling on one of the concrete culverts, 2022 (source: JVA)
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Columbia Cemetery
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