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Tulpehocken Creek at Blue Marsh Dam

Critical Stages
307' - Action
Flood
Moderate
Major

Latest Observation

Updated: 9:00 AM EST 12/6/25

Status: No Flooding

Stage: 285.19 ft

Flow: -999 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
9:00 AM 12/6 285.19 -999
8:30 AM 12/6 285.18 -999
8:00 AM 12/6 285.18 -999
7:30 AM 12/6 285.18 -999
7:00 AM 12/6 285.17 -999
6:30 AM 12/6 285.18 -999
6:00 AM 12/6 285.18 -999
5:30 AM 12/6 285.19 -999
5:00 AM 12/6 285.17 -999
4:30 AM 12/6 285.17 -999
4:00 AM 12/6 285.17 -999
3:30 AM 12/6 285.17 -999
3:00 AM 12/6 285.17 -999
2:30 AM 12/6 285.17 -999
2:00 AM 12/6 285.17 -999
1:30 AM 12/6 285.17 -999
1:00 AM 12/6 285.17 -999
12:30 AM 12/6 285.18 -999
12:00 AM 12/6 285.18 -999
11:30 PM 12/5 285.18 -999
11:00 PM 12/5 285.17 -999
10:30 PM 12/5 285.17 -999
10:00 PM 12/5 285.17 -999
9:30 PM 12/5 285.17 -999
9:00 PM 12/5 285.17 -999
8:30 PM 12/5 285.17 -999
8:00 PM 12/5 285.17 -999
7:30 PM 12/5 285.17 -999
7:00 PM 12/5 285.17 -999
6:30 PM 12/5 285.17 -999
Hydrograph for Tulpehocken Creek at Blue Marsh Dam
309' - Rebers Bridge Road is subject to closures.
307' - The level at which the reservoir begins to spill. The emergency spillway is an ungated, excavated channel located along the reservoir rim. Discharge through the emergency spillway is uncontrolled and intended to prevent overtopping and catastrophic failure of the dam during a high-water event. Significant flooding can occur during spillway flow. Please pay attention to your local authorities.
303' - Route 183 floods between Mt. Pleasant and Bernville.
295' - The beach at the Dry Brooks Day Use Center is subject to closure.
292' - Boat launch ramps around the lake are subject to closure.
DateStage (ft)
Sep 9, 2011 309.39
Jun 28, 2006 309.19

Data provided by the National Weather Service.