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Around Lower Atchafalaya River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Lower Atchafalaya River is a 14.9 mile river. Streamflow is measured at the USGS gauge Lower Atchafalaya River at Morgan City, LA (site 07381600). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1995 to 2015
Lower Atchafalaya River typically runs highest in May, at a median 172,000 cfs, and lowest in September, at 61,050 cfs. The highest flow on record for any single day is 487,000 cfs, in 2011.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 127,000 | 98,400 to 161,000 |
| February | 141,000 | 83,500 to 188,000 |
| March | 154,000 | 126,000 to 200,000 |
| April | 162,000 | 137,000 to 201,500 |
| May | 172,000 | 127,000 to 225,000 |
| June | 168,500 | 102,000 to 190,000 |
| July | 120,000 | 89,700 to 159,000 |
| August | 79,400 | 57,100 to 99,100 |
| September | 61,050 | 47,650 to 74,650 |
| October | 67,600 | 47,400 to 86,900 |
| November | 66,200 | 47,900 to 100,200 |
| December | 92,400 | 69,700 to 132,000 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 18 years of record. Statistics published by the US Geological Survey for Lower Atchafalaya River at Morgan City, LA (site 07381600). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Lower Atchafalaya River. Ramp data comes from the USGS national boat-ramp inventory.
- MarinaIntracoastal WaterwayPublic
- Two Sisters LandingBayou TecheRestricted
- WilsonAtchafalaya BasinPublic
Made to print
Put Lower Atchafalaya River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Lower Atchafalaya River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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