West Branch Herring Run at Idlewylde water level

Name: West Branch Herring Run at Idlewylde water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, West Branch Herring Run, Maryland, United States

Directions

Below flood stage

Water level

0.90ft Steady over the last 24 hours

Measured Oct 20, 2026, 03:05 AM EDT (54 min ago)

Flow: 0.7 cfs

History

7 days

Water level Minor flood stage

What this means

The gauge at West Branch Herring Run at Idlewylde reads 0.90 ft, a normal level.

It is 8.10 ft below the flood stage of 9.00 ft.

The level has held steady over the past 24 hours. Over the past 30 days it has moved between 0.89 ft and 2.09 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 10.87 ftAugust 14, 2012

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 9.00 ft, still 8.10 ft away.

What happens at each level

14.00 ft: Major flooding is ongoing with roads and structures flooded.
12.50 ft: Water covers Regester Street and Hillen Road, and homes near the gauge begin to flood.
9.00 ft: Yards near the gage and portions of Mount Pleasant Golf Course begin to flood.
8.00 ft: The river exceeds its banks and begins to flood yards on the right bank.
6.00 ft: Water begins to overflow the banks near Hillen Road, but no impacts are observed.
0.90 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	10.87 ft	August 14, 2012
2	9.41 ft	August 13, 2018
3	8.99 ft	June 27, 2016
4	7.70 ft	February 24, 2016
5	7.47 ft	July 11, 2019
6	7.39 ft	June 1, 2012
7	7.28 ft	June 10, 2021
8	7.10 ft	June 25, 2006
9	7.05 ft	July 7, 2004
10	7.03 ft	September 7, 2011

Weather at the gauge

The forecast is not available right now.

Sunrise 07:22 AM Sunset 06:22 PM Daylight 11 hr First quarter 66%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Minebank Run near Glen ArmRiver gauge, Minebank Run	4.11 ft	Below flood stage	−0.01 ft	2.9 mi
Long Quarter Branch at LuthervilleRiver gauge, Long Quarter Branch	0.99 ft	Below flood stage	−0.03 ft	3.6 mi
Herring Run at Sinclair Lane at BaltimoreRiver gauge, Herring Run	29.8 cfs	High	±0	4.2 mi
Jones Falls at SorrentoRiver gauge, Jones Falls	7.84 ft	Below flood stage	−0.01 ft	4.5 mi
Whitemarsh Run near FullertonRiver gauge, Whitemarsh Run	1.11 ft	Below flood stage	−0.01 ft	4.8 mi
Whitemarsh Run at White MarshRiver gauge, Whitemarsh Run	2.89 ft	Below flood stage	−0.01 ft	7 mi
Gwynns Falls at Washington Blvd at BaltimoreRiver gauge, Gwynns Falls	2.41 ft	Below flood stage	−0.02 ft	8 mi
Long Green Creek at Glen ArmRiver gauge, Long Green Creek	1.01 ft	Below flood stage	−0.01 ft	8 mi

Questions and answers

What is flood stage for West Branch Herring Run at Idlewylde?

The official flood stage is 9.00 ft. The level is currently 8.10 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of West Branch Herring Run at Idlewylde today?

On Oct 20, 2026, 03:05 AM EDT, the water level was 0.90 ft. Steady over the last 24 hours.

Is West Branch Herring Run at Idlewylde rising or falling?

Steady over the last 24 hours.

Is the level of West Branch Herring Run at Idlewylde normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at West Branch Herring Run at Idlewylde?

The highest level on record is 10.87 ft on August 14, 2012.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01585200 (Agency page)
Coordinates: 39.37364, -76.58433 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.90 ft	2026-10-20 07:05	Provisional
Flow	0.7 cfs	2026-10-20 07:05	Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

<iframe src="https://nivelmap.com/embed/7221?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="West Branch Herring Run at Idlewylde water level"></iframe>

How to cite

U.S. Geological Survey: West Branch Herring Run at Idlewylde (usgs:01585200). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/maryland/west-branch-herring-run-at-idlewylde

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer