Durham Reservoirs Dashboard

Lake Michie · Flat River watershed · updated Oct 24, 5:35 PM ET

Methodology & sources

Source readings from USGS and the City of Durham are provisional and subject to revision. Every value is shown with the time it was observed.

Reservoir elevation
Unavailable
Unavailable
as of no data
Inflow · Flat River
Current
1.89 cfs
24h avg 1.95 · 7d avg 1.86 cfs
≈ 1.2 MGD
~11th percentile for this date · median 15.0 cfs (1926–2026, 101 yrs)
as of 51 min ago
Outflow · below dam
Current
2.95 cfs
7d avg 9.17 cfs · 1.9 MGD
as of 51 min ago
Current direction
Falling
from measured surface flow (-1.06 cfs net)
Not measured lake level — see methodology.

30-day inflow & outflow

Cubic feet per second (cfs) on a shared axis. From USGS instantaneous values.

Inflow (Flat River)Outflow (below dam)

Reservoir elevation

Daily snapshots of the City of Durham's published elevation, stored by this dashboard. Points before 2026-07-19 were digitized from the City's 30-day chart image (±0.3 ft) and are excluded from trend calculations. Provisional.

Elevation (ft msl)Full pool (341.00 ft)

Rainfall near Lake Michie

updated 4 hr ago
0.00in today (station avg)
0.00 in over the last 7 days
Stations
Rougemont · upstream of Lake Michie
0.00 in today
Timberlake · upstream of Lake Michie
0.00 in today

Source: Weather Underground personal weather stations (hobbyist gauges near or upstream of the reservoir — accuracy and siting vary). Daily totals reset at local midnight; today's bar is rain so far. Today's value is the mean across reporting stations.

Recovery interpretation

More water is leaving below the dam than the Lake Michie watershed is bringing in (about -1.1 cfs net), suggesting the reservoir is drawing down.

Elevation 24h
n/a
needs snapshot history
7-day inflow volume
8 MG
million gallons
Net surface flow (now)
-1.06 cfs
Net surface flow (7d avg)
-7.31 cfs
7-day outflow volume
41 MG
million gallons
7-day net surface volume
-33 MG
measured surface only

Estimate only. Net surface flow (inflow − outflow) excludes municipal withdrawals, smaller tributaries, direct rainfall, evaporation, groundwater exchange, and travel-time between gauges. It is not an exact reservoir water balance.

Source status

Flat River inflow
02085500 · provisional
51 min ago
Oct 24, 4:45 PM ET
Current
Outflow · below dam
02086500 · provisional
51 min ago
Oct 24, 4:45 PM ET
Current
City of Durham — Lake Michie elevation
durhamnc.gov/1225 · HTTP 403 from https://www.durhamnc.gov/1225/Lake-Levels
no data
—
Unavailable