Rivers in Colorado

South Platte River at Henderson

Adams County, ColoradoNWS HNDC2Boulder office

Below flood stage
3.28ftStage

Observed Sun, Sep 27, 5:30 AM MDT

Flood stage
11.00 ft
Record crest
17.67 ft1973

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood15.00 ft
Moderate flood13.00 ft
Minor flood11.00 ft
Action10.00 ft
  1. 17.70 ftThis is close to the maximum flood since records began in the 1920s. This level represents a flood that has a 1-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
  2. 15.50 ftWidespread, major flooding occurs with numerous roads and streets inundated and impassable. The river levels rise to the base of bridges resulting in flooding of bridges or bridge approaches.
  3. 15.20 ftThis level represents a flood that has a 2-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
  4. 15.00 ftThere is major flooding along the river including damage in Henderson and Brighton.
  5. 13.00 ftThere is significant damage to agricultural lands along the river.
  6. 11.10 ftThe river overflows its banks causing flooding downstream of Brighton and begins to affect agricultural lands. This level represents a flood that has a 10-percent chance of being equaled or exceeded in any given year. for more information click <a href="inundation/faq_google.php">here</a>.
  7. 10.00 ftThere is minor overbank flow into low lying areas along the river.
  8. 9.50 ftWater overtops bike paths along the South Platte River.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Crest history

94 crests on NOAA’s list since 1926.

#DateStage
1May 6, 197317.67 ft
2June 17, 196516.93 ft
3May 8, 196914.91 ft
4May 9, 195712.45 ft
5September 12, 201311.65 ft
6June 12, 201511.40 ft
7June 27, 198311.35 ft
8July 20, 198511.24 ft
9May 17, 199511.00 ft
10August 24, 199210.90 ft
11June 9, 198710.70 ft
12August 21, 198410.60 ft
13April 26, 194210.55 ft
14July 13, 201110.11 ft
15June 11, 197010.10 ft
16June 1, 199110.06 ft
17April 30, 199910.05 ft
18August 13, 197510.04 ft
19August 19, 20049.98 ft
20August 4, 19889.88 ft
21July 26, 19989.86 ft
22June 14, 19499.59 ft
23April 25, 20079.49 ft
24June 3, 19899.45 ft
25July 17, 20009.38 ft

Most recent crests

  • June 26, 2021: 7.27 ft
  • May 24, 2020: 7.22 ft
  • July 20, 2019: 7.19 ft
  • July 24, 2018: 6.84 ft
  • May 18, 2017: 8.18 ft
  • April 29, 2016: 7.39 ft
  • June 12, 2015: 11.40 ft
  • July 31, 2014: 9.02 ft
  • September 12, 2013: 11.65 ft
  • September 12, 2012: 8.31 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Gauge reading affected by reservoir operations. Stage may be affected by ice during winter months.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.