The One Hundred and Two River streamgage at Maryville is owned by the U.S. Geological Survey (USGS) and funded in cooperation with the Missouri Department of Natural Resources. Stage (water-surface elevation) measurements are made and recorded at 15-minute intervals and transmitted to the USGS office every hour. Stage and streamflow values are displayed in near real-time.
The One Hundred and Two River originates in southern Iowa and passes through the Missouri Central Dissected Till Plains of Nodaway, Andrew and Buchanan counties before emptying into the Platte River. The origin of the name is uncertain but may be derived from French explorers’ corruption of an Osage name into “Rivière Cent Deux”, translated into English as One Hundred and Two River. An alternate theory suggests the river was named for its supposed length by explorers in 1823, despite the river only being 80 miles long (Maryville).
The streamgage is located on the middle reach of the One Hundred and Two River near the Maryville Waterworks off U.S. Highway 136 in Nodaway County. The station consists of a shelter, a data collection platform, an electronic pressure transducer to measure stage and a crest stage gage (Figure 4) to automatically record crest height during high water events. Learn how a USGS streamgage works.
Streamgage Information
- Streamgage Drainage Area: 515 square miles (Nodaway County)
- 10-Digit Hydrologic Unit Code: 1024001303
- Area of HUC10 Basin: 311 square miles
- Gage Location: 40°20'44", -94°49'56"
- Gage Datum: 954.77 feet above NAVD88
USGS Tools
- Precipitation (inches): March 28, 2019 to present
- Average Discharge (cubic feet per second): Oct. 1, 1932 to present
- Observation Gage Height (feet): Oct. 1, 2002 to present
- Peak: Gage Height, Discharge (feet, cubic feet per second) 26.96 (May 8, 2007), 28,000 (May 8, 2007)
The One Hundred and Two River at Maryville streamgage webpage is maintained by USGS. Users are able to create graphs and tables utilizing the recorded parameters, which can be customized to show current and historical observations, daily data, daily statistics, monthly statistics, annual statistics, peak streamflow and field measurements for any time frame within the period of record. A location map and Water-Year Summary also are available. Customize your own data output.
Why is the One Hundred and Two River Streamgage at Maryville Important?
The streamgage provides recreational users in the area, surrounding landowners and the public with accurate stream height data. The data collected is also valuable for understanding hydrologic conditions in Nodaway County and downstream. During flood periods, the National Oceanic and Atmospheric Administration (NOAA) publishes a standalone forecast for this streamgage. The Water Resources Center uses discharge data from this streamgage for flood, drought and water supply studies.
The One Hundred and Two River and its tributaries are important for recreation and wildlife conservation interests (MDC). The river is designated as a Class I(II) rapid that provides recreational boating to the area and nature photography opportunities (Whitewater). The streamgage is located next to a local fishing spot overlooking the breached Maryville Waterworks Dam.
In the area, people can enjoy:
- Bird-watching
- Camping
- Fishing
- Hunting
- Hiking
- Boating and Floating
For more information about recreation activities located within the basin, contact the Missouri Department of Conservation
Figure 3. Profile view of nearby bridge.
Figure 5. Profile of streamgaging site, including the Maryville Waterworks dam (breached in the flood of 2007).
Figure 4. Downwards view of the crest stage gage
1 REFERENCES CITED
American Whitewater. (May 2019). One Hundred and Two (102) Maryville to St. Joseph.
Missouri Department of Conservation. (June 2019). Nodaway County Community Lake.
U.S. Geological Survey Water Data for USA (May 2019). One Hundred and Two River at Maryville, MO.