Royce Brook at Hamilton Road near Manville NJ
USGS 01402630 · New Jersey · reports discharge (live), gauge height
Reading Royce Brook at Hamilton Road near Manville NJ…
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USGS 01402630 · New Jersey · reports discharge (live), gauge height
What the agencies suggest
Stand back from the shoreline and be aware of surroundingsRhode Island Department of Environmental Management
Wading and boating should be avoided if waters are running high and muddy and the streambed is not visiblePennsylvania Fish and Boat Commission
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 9:15 PM EST · provisional USGS data
Much above normal for Nov 5 Rising · 24 h
Discharge, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 5.53 to 13.6 ft³/s; latest 13.6 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 9:15 PM EST | 13.6 | 1.48 | 1.6–3.9 |
| Nov 5, 8:15 PM EST | 13.6 | 1.48 | 1.6–3.9 |
| Nov 5, 7:15 PM EST | 13.6 | 1.48 | 1.6–3.9 |
| Nov 5, 6:15 PM EST | 13.1 | 1.47 | 1.6–3.9 |
| Nov 5, 5:15 PM EST | 13.1 | 1.47 | 1.6–3.9 |
| Nov 5, 4:15 PM EST | 12.2 | 1.45 | 1.6–3.9 |
| Nov 5, 3:15 PM EST | 11.7 | 1.44 | 1.6–3.9 |
| Nov 5, 2:15 PM EST | 11.2 | 1.43 | 1.6–3.9 |
| Nov 5, 1:15 PM EST | 11.2 | 1.43 | 1.6–3.9 |
| Nov 5, 12:15 PM EST | 10.8 | 1.42 | 1.6–3.9 |
| Nov 5, 11:15 AM EST | 10.4 | 1.41 | 1.6–3.9 |
| Nov 5, 10:15 AM EST | 9.92 | 1.4 | 1.6–3.9 |
| Nov 5, 9:15 AM EST | 9.92 | 1.4 | 1.6–3.9 |
| Nov 5, 8:15 AM EST | 9.49 | 1.39 | 1.6–3.9 |
| Nov 5, 7:15 AM EST | 9.49 | 1.39 | 1.6–3.9 |
| Nov 5, 6:15 AM EST | 9.06 | 1.38 | 1.6–3.9 |
| Nov 5, 5:15 AM EST | 9.06 | 1.38 | 1.6–3.9 |
| Nov 5, 4:15 AM EST | 8.64 | 1.37 | 1.6–3.9 |
| Nov 5, 3:15 AM EST | 8.64 | 1.37 | 1.6–3.9 |
| Nov 5, 2:15 AM EST | 8.64 | 1.37 | 1.6–3.9 |
| Nov 5, 1:15 AM EST | 8.64 | 1.37 | 1.6–3.9 |
| Nov 5, 12:15 AM EST | 8.64 | 1.37 | 1.6–3.9 |
| Nov 4, 11:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 10:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 9:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 8:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 7:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 6:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 5:15 PM EST | 8.64 | 1.37 | 1.7–4.2 |
| Nov 4, 4:15 PM EST | 8.23 | 1.36 | 1.7–4.2 |
| Nov 4, 3:15 PM EST | 8.23 | 1.36 | 1.7–4.2 |
| Nov 4, 2:15 PM EST | 7.82 | 1.35 | 1.7–4.2 |
| Nov 4, 1:15 PM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 12:15 PM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 11:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 10:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 9:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 8:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 7:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 6:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 5:15 AM EST | 7.42 | 1.34 | 1.7–4.2 |
| Nov 4, 4:15 AM EST | 7.03 | 1.33 | 1.7–4.2 |
| Nov 4, 3:15 AM EST | 7.03 | 1.33 | 1.7–4.2 |
| Nov 4, 2:15 AM EST | 6.65 | 1.32 | 1.7–4.2 |
| Nov 4, 1:15 AM EST | 6.27 | 1.31 | 1.7–4.2 |
| Nov 4, 12:15 AM EST | 5.53 | 1.29 | 1.7–4.2 |
| Nov 3, 11:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 10:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 9:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 8:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 7:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 6:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 5:15 PM EST | 5.9 | 1.3 | 1.6–4.8 |
| Nov 3, 4:15 PM EST | 5.53 | 1.29 | 1.6–4.8 |
| Nov 3, 3:15 PM EST | 5.53 | 1.29 | 1.6–4.8 |
| Nov 3, 2:15 PM EST | 9.49 | 1.39 | 1.6–4.8 |
| Nov 3, 1:15 PM EST | 9.49 | 1.39 | 1.6–4.8 |
| Nov 3, 12:15 PM EST | 9.49 | 1.39 | 1.6–4.8 |
| Nov 3, 11:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 10:15 AM EST | 9.49 | 1.39 | 1.6–4.8 |
| Nov 3, 9:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 8:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 7:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 6:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 5:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 4:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 3:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 2:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 1:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 3, 12:15 AM EST | 9.06 | 1.38 | 1.6–4.8 |
| Nov 2, 11:15 PM EST | 9.06 | 1.38 | 2.2–7.5 |
| Nov 2, 10:15 PM EST | 9.06 | 1.38 | 2.2–7.5 |
| Nov 2, 9:15 PM EST | 9.06 | 1.38 | 2.2–7.5 |
| Nov 2, 8:15 PM EST | 9.06 | 1.38 | 2.2–7.5 |
| Nov 2, 7:15 PM EST | 9.06 | 1.38 | 2.2–7.5 |
| Nov 2, 6:15 PM EST | 8.64 | 1.37 | 2.2–7.5 |
| Nov 2, 5:15 PM EST | 8.64 | 1.37 | 2.2–7.5 |
| Nov 2, 4:15 PM EST | 8.23 | 1.36 | 2.2–7.5 |
| Nov 2, 3:15 PM EST | 8.23 | 1.36 | 2.2–7.5 |
| Nov 2, 2:15 PM EST | 8.23 | 1.36 | 2.2–7.5 |
| Nov 2, 1:15 PM EST | 7.82 | 1.35 | 2.2–7.5 |
| Nov 2, 12:15 PM EST | 7.42 | 1.34 | 2.2–7.5 |
| Nov 2, 11:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 10:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 9:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 8:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 7:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 6:15 AM EST | 7.03 | 1.33 | 2.2–7.5 |
| Nov 2, 5:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 4:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 3:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 2:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 1:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 2, 12:15 AM EST | 6.65 | 1.32 | 2.2–7.5 |
| Nov 1, 11:15 PM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 10:15 PM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 9:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 8:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 7:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 6:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 5:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 4:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 3:15 PM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 2:15 PM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 1:15 PM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 12:15 PM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 11:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 10:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 9:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 8:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 7:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 6:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 5:15 AM EST | 7.03 | 1.33 | 3–11 |
| Nov 1, 4:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 3:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 2:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 1:15 AM EST | 6.65 | 1.32 | 3–11 |
| Nov 1, 1:15 AM EDT | 6.65 | 1.32 | 3–11 |
| Nov 1, 12:15 AM EDT | 7.03 | 1.33 | 3–11 |
| Oct 31, 11:15 PM EDT | 7.03 | 1.33 | 3.6–17 |
| Oct 31, 10:15 PM EDT | 7.03 | 1.33 | 3.6–17 |
| Oct 31, 9:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 8:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 7:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 6:15 PM EDT | 7.03 | 1.33 | 3.6–17 |
| Oct 31, 5:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 4:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 3:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 2:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 1:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 12:15 PM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 11:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 10:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 9:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 8:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 7:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 6:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 5:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 4:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 3:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 2:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 1:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 31, 12:15 AM EDT | 6.65 | 1.32 | 3.6–17 |
| Oct 30, 11:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 10:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 9:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 8:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 7:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 6:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 5:15 PM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 4:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 3:15 PM EDT | 6.65 | 1.32 | 3.9–53 |
| Oct 30, 2:15 PM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 1:15 PM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 12:15 PM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 11:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 10:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 9:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 8:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 7:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 6:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 5:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 4:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 3:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 2:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 1:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 30, 12:15 AM EDT | 7.03 | 1.33 | 3.9–53 |
| Oct 29, 11:15 PM EDT | 7.03 | 1.33 | 1.7–37 |
| Oct 29, 10:15 PM EDT | 7.03 | 1.33 | 1.7–37 |
Map of USGS gauge 01402630 and the river around it
Where Royce Brook at Hamilton Road near Manville NJ sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. New Jersey Fish and Wildlife publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a New Jersey rule, with New Jersey Fish and Wildlife's own figure added: 68°F and 72°F.
Species list not on file for this gauge. Check the New Jersey Fish & Wildlife: New Jersey trout stocking · New Jersey freshwater fishing regulations.
Normal for Nov 5: 1.6–3.9 ft³/s (middle half of 14 years of record). Now: 13.6 ft³/s, much above normal.
Much above normal for this date. 13.6 ft³/s is above the 90th percentile of daily mean flow for Nov 5 at this gauge over 14 years of record (2013–2026): 10th 0.81, 25th 1.6, median 2.7, 75th 3.9, 90th 9.6 ft³/s.
Daily means on record for Nov 5: lowest 0.63 ft³/s, highest 15.2 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Rising over 24 hours: discharge up 57.4%, from 8.64 to 13.6 ft³/s. Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Rising water. Rising over the last 24 hours (discharge up 57.4%). Keep your way back to the bank in sight and watch the level while you fish. “Rising” is our rule of thumb: more than 10% in discharge or 0.2 ft of gauge height in 24 hours, not a USGS or NWS class.
Flow far above normal. Above the 90th percentile of daily mean flow for this date (USGS class “much above normal”), from 14 years of record. Expect higher, faster water than usual for the season.
hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) Statistics documentation (percentiles of daily mean discharge) (U.S. Geological Survey)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
NWS observed 1.48 ft stage, 16 ft³/s at Nov 5, 8:15 PM EST (NWS gauge HAMN4; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:54 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.