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Old Blowing Rock Water Supply Dam, North Carolina

Old Blowing Rock Water Supply Dam on Flat Top Branch in North Carolina.

Open in BirdTrout

36.1431, -81.672 · Watauga County · NID NC00414. Tap the map to open this water in the live app.

What the runs do here

Flat Top Branch carries no anadromous run on our corridor map, so this page makes no claim about salmon or steelhead at this dam. What it sits on is coldwater — resident trout water — and the section below says which classification says so.

The structure

Owner
Town of Blowing Rock Local Government
Purpose
Water Supply
Completed
1958
Type
Earth
Height
34 ft
Length
325 ft
Spillway
None
Storage
76 acre-ft · 6 acre pool
Drainage
1 sq mi
Condition
Poor · High hazard potential

From the National Inventory of Dams (USACE). Hazard potential is a downstream-consequence classification, not a statement about the structure's condition.

The water above and below

Coldwater designation is the state's own classification. A dam sits on one river and this list is every designated reach within a mile and a half of it, so a tributary mouth shows up here too.

Water right now

GaugeDistanceTempFlow
Yadkin River at Patterson, NC 12.3 mi 64.6 °F 43 cfs
Yadkin River at Patterson, Nc 12.3 mi 64.6 °F 43 cfs

Live from USGS. A gauge miles away is a gauge miles away — the distance column is there so you can discount it. A hydro dam's releases move the flow below it on a schedule the gauge sees and this page does not.

Getting to it

The dam sits on or beside public land, NPS.

No listed public access site within 8 miles of this dam.

Fly shops nearby

The river this is on

Open this water on the map →Every reach around it coloured by today's water temperature, with the access points along it.