River Conditions
Illustrated map of Mississippi River

River stage

New Boston, Mississippi River

River level
6.93 ft
Status
Below flood stage
Action stage
14.00 ft
Flood stage
15.00 ft
Record crest
25.90 ft

Last reported 2026-10-13 | NWS NBOI2

Record crest
25.90 ft
Flood stage
15.00 ft
Moderate flood
16.50 ft
Major flood
18.50 ft
Crest date
1993-07-09

In brief

The Mississippi River at New Boston, IL read 6.93 ft on Oct 13, 2026, 7.07 ft below action stage.

Source: National Weather Service gauge NBOI2

Stage threshold profile

Action stage 14.00 ftMinor flooding 15.00 ftModerate flooding 16.50 ftMajor flooding 18.50 ft CURRENT 6.93 ft

Highest crests on record

RankCrestDate
1 25.90 ft 1993-07-09
2 25.20 ft 2008-06-17
3 24.42 ft 2019-06-01
4 23.59 ft 2019-05-03
5 23.14 ft 1965-04-28
6 22.46 ft 2001-04-25
7 21.83 ft 2008-05-01
8 21.73 ft 1973-04-25

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 18.10 ft

    Lock and Dam 17 is closed.

  2. 19.20 ft

    Water overtops the spillway at the south end of Lake Odessa.

  3. 20.60 ft

    The Lake Odessa levee overtops.

  4. 21.00 ft

    Water affects grain elevators in New Boston. Water overtops the upper lock wall of L&D 17.

  5. 21.10 ft

    Water overtops the upper spillway at Lake Odessa.

  6. 26.00 ft

    Water overtops the levee at L&D 17.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Mississippi River flooding at New Boston?

No. The Mississippi River at New Boston is at 6.93 ft, 7.07 ft below action stage.

What is the flood stage at New Boston?

The National Weather Service sets action stage 14 ft, minor flooding 15 ft, moderate flooding 16.5 ft and major flooding 18.5 ft.

What is the highest the Mississippi River has been at New Boston?

The highest crest on record is 25.9 ft, on 1993-07-09.

Stage and flood information from the NOAA National Weather Service (gauge NBOI2). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.