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Basic Technical

bankfull discharge

noun

Pronunciation: /ˈbæŋkfʊl dɪsˈtʃɑːrdʒ/

The water flow rate when a stream reaches its maximum capacity within its channel without overflowing. This measurement is critical for designing water management systems in reclaimed mine sites near waterways.

Plain English

The amount of water flowing in a stream when it fills its channel completely.

Etymology & History

Origin languageEnglish
Rootbank (stream edge) + full (complete) + discharge (flow)
First recorded use1960s
Usage frequencyUncommon

Usage

"The reclaimed drainage channel was designed to accommodate the river's bankfull discharge during spring snowmelt."

Style guide notes: Always include measurement units and time period when referencing specific bankfull discharge values.

Also known as

channel capacity flood stage flow design flood

Contrasted with

baseflow low flow

Related Terms

Frequently Asked Questions

Why measure bankfull discharge during reclamation?

To ensure restored channels can safely handle seasonal water flows without erosion or overflow.

How do you calculate bankfull discharge?

Through hydrologic modeling, stream cross-section surveys, and historical water flow data analysis.

Why Test Candidates on This?

Relevant for assessing hydrological design competency in mine reclamation projects near waterways.

Required skill level: Mid

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