● TCO Fly Shop · Stream Report
Valley Creek
More rain on the way this weekend, keep an eye on the gauge before you head out
Fair
Filed by John of TCO Bryn Mawr on Sep 25
USGS gauge
Reading from Sep 26, 6:30 AM
Flow
18.6cfs
Gage height
3.17ft
Valley Creek at PA Turnpike Bridge near Valley Forge, PA USGS data
Flow rating
Prime
Clarity
Clear
What's Hatching
Low and clear at the moment with fish focusing on small midges and terrestrials
What they're eating
Hot flies
Flow
TCO's own calibration of the creek's fishable window. The needle is where it sits right now.
18.6 cfs · Prime
0
15
30
100
150
Skinny0–15
Prime15–30
Pushy30–100
Blown100+
The number you want. Flowing good.
Water temp
32°
48°
56°
64°
68°
80°
56–
60
F
Staff-estimated range across the day.
Cold<48°
Cool48–56°
Prime56–64°
Caution64–68°
Not safe for trout68°+
Prime temps. Trout are active.
Range estimated by TCO staff
General Information
New Zealand mud snails have been found on Valley so make sure to thoroughly clean boots/equipment to avoid moving them to other waterways.
Flow bands and temperature bands are TCO's own calibration from years on this water, not a USGS product. The 68° line is a conservation threshold, not our opinion. Gauge data courtesy of the U.S. Geological Survey.