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Section 5: Flood-Related Weather Conditions

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Flood-Related Weather Conditions Sign

Flood-related weather condition signs may be used on roadway sections that are subject to frequent flooding. The following warning signs are addressed in Chapter 2C of the Texas Manual on Uniform Traffic Control Devices (TMUTCD), Section 2C.35.

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  • ROAD MAY FLOOD (W8-18) - used on a roadway section with frequent flooding.
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  • WATER CROSSING (W8-18aT) - used on a roadway section (dip or ford) normally underwater; not where water occasionally crosses roadway due to heavy rain or flash floods.
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  • WHEN FLOODED TURN AROUND DON'T DROWN (W8-18bT) - used as an additional sign in advance of warning signs ROAD MAY FLOOD (W8-18) or WATER CROSSING (W8-18aT).
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Flood Gauge Assembly

The flood gauge assembly (FGA) consists of the FLOOD GAUGE (W8-19aTP) plaque and Depth Gauge (W8-19) sign. The FGA assembly should be used in conjunction with signs ROAD MAY FLOOD (W8-18), WATER CROSSING (W8-18aT) or WHEN FLOODED TURN AROUND DON'T DROWN (W8-18bT).

FGA details are shown on the Traffic Engineering Standard Sheets.

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