Centennial Wash At Southern Pacific Railroad Brdg Flow Report
As of July 17, 2026, Centennial Wash At Southern Pacific Railroad Brdg is flowing at 0 cfs with a gage height of 4.59 ft. Source: USGS gauge #09517490, refreshed throughout the day.
Historical Data
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #09517490).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Centennial Wash At Southern Pacific Railroad Brdg
The flow is primarily provided by rains from monsoonal thunderstorms, making it a flashy stream. The main tributaries to Centennial Wash are minor washes that drain the hills and mountains along the southern edge of the Gila River valley. There are no dams on this stream. The flow is seasonal, with the highest flows occurring during the summer monsoon season. Interestingly, the flow can go from almost zero to a raging torrent in a matter of minutes during a monsoonal storm. Overall, Centennial Wash provides an important resource for flood control in the region.
Nearby streamflow levels
Cross-check Centennial Wash At Southern Pacific Railroad Brdg's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Centennial Wash At Southern Pacific Railroad Brdg | 0 cfs |
| Enterprise Canal At Gillespie Dam | 9 cfs |
| Gila R Blw Gillespie Dam | 0 cfs |
| Gila Bend Canal At Gillespie Dam | 40 cfs |
| Hassayampa River Near Arlington | 0 cfs |
| Gila River Below Painted Rock Dam | 0 cfs |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Centennial Wash At Southern Pacific Railroad Brdg.
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Centennial Wash At Southern Pacific Railroad Brdg in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Centennial Wash At Southern Pacific Railroad Brdg crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Centennial Wash At Southern Pacific Railroad Brdg
Where does the streamflow data for Centennial Wash At Southern Pacific Railroad Brdg come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 09517490. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Centennial Wash At Southern Pacific Railroad Brdg rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Centennial Wash At Southern Pacific Railroad Brdg report
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