floodway: meaning, definition, pronunciation and examples

Low
UK/ˈflʌdweɪ/US/ˈflʌdweɪ/

Technical / Formal

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Quick answer

What does “floodway” mean?

A channel or passage designed to carry excess water during a flood, preventing damage to surrounding areas.

Audio

Pronunciation

Definition

Meaning and Definition

A channel or passage designed to carry excess water during a flood, preventing damage to surrounding areas.

Any designated area or engineered path, often legally defined, where floodwaters are directed or allowed to flow.

Dialectal Variation

British vs American Usage

Differences

The term is used identically in technical contexts (engineering, planning). In everyday speech, it is rarely used in either variety.

Connotations

Neutral technical term. May carry connotations of urban planning, environmental management, or legal land-use restrictions.

Frequency

Slightly more frequent in American English due to extensive flood control infrastructure (e.g., in the Mississippi Valley). In the UK, terms like 'flood relief channel' or 'washland' may be more common in public discourse.

Grammar

How to Use “floodway” in a Sentence

The [floodway] carries [water] from [Point A] to [Point B].[Authorities] designated the [area] as a [floodway].Building in the [floodway] is [restricted/prohibited].

Vocabulary

Collocations

strong
designated floodwayemergency floodwayfloodway constructionfloodway easement
medium
channel through the floodwaymaintain the floodwaymap of the floodway
weak
wide floodwayofficial floodwaynew floodway

Examples

Examples of “floodway” in a Sentence

verb

British English

  • [Not applicable; 'floodway' is not used as a verb.]

American English

  • [Not applicable; 'floodway' is not used as a verb.]

adverb

British English

  • [Not applicable.]

American English

  • [Not applicable.]

adjective

British English

  • [Not applicable as a standard adjective. Attributive use exists, e.g., 'floodway map', 'floodway zone'.]

American English

  • [Not applicable as a standard adjective. Attributive use exists, e.g., 'floodway designation', 'floodway regulations'.]

Usage

Meaning in Context

Business

In property development and insurance, referring to legal restrictions on building.

Academic

In geography, civil engineering, and environmental science papers on hydrology and flood risk management.

Everyday

Very rare. Might appear in local news about planning permission or flood warnings.

Technical

Core term in hydraulic engineering, urban planning, and environmental law.

Vocabulary

Synonyms of “floodway”

Strong

diversion channelbypass channel

Neutral

flood channelspillwayflood relief channel

Weak

watercoursedrainage channelconduit

Vocabulary

Antonyms of “floodway”

flood barrierleveedamembankment

Watch out

Common Mistakes When Using “floodway”

  • Using 'floodway' to mean a flooded road (that's 'flooded road' or 'floodwater').
  • Confusing it with 'floodplain' (a general area prone to flooding vs. a specific channel for floodwaters).

FAQ

Frequently Asked Questions

No. A river is a permanent natural watercourse. A floodway is often an additional, sometimes artificial, channel that only carries water during high flood events to divert it away from vulnerable areas.

Typically, no. Building is heavily restricted or prohibited in legally designated floodways because it obstructs water flow and puts property at extreme risk.

A floodplain is the broad, flat area adjacent to a river that gets inundated. A floodway is a specific, critical part of that plain (often the deepest channel) where water flows fastest and is kept clear of obstructions.

It is a specialist term. The average person might not know it unless they live in a flood-prone area, work in planning, or are involved in property law.

A channel or passage designed to carry excess water during a flood, preventing damage to surrounding areas.

Floodway is usually technical / formal in register.

Floodway: in British English it is pronounced /ˈflʌdweɪ/, and in American English it is pronounced /ˈflʌdweɪ/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • [No common idioms for this technical term]

Learning

Memory Aids

Mnemonic

Think of a 'HIGHWAY for WATER' during a flood. A FLOOD-WAY is the designated way for floodwaters to travel.

Conceptual Metaphor

A FLOODWAY IS A PRESCRIBED PATH / A FLOODWAY IS A RELEASE VALVE FOR A RIVER.

Practice

Quiz

Fill in the gap
After the new regulations, they could not build a factory in the designated .
Multiple Choice

What is the primary purpose of a floodway?