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Hydrograph River at a Glance Download Inundation
Mapping
Boise River at Boise River Discharge (cfs)Stage (ft)Observed: 1851 cfs at 10:15PM Apr 12, 2014Observed: 1860 cfs at 10:30PM Apr 12, 2014Observed: 1860 cfs at 10:45PM Apr 12, 2014Observed: 1851 cfs at 11:15PM Apr 12, 2014Observed: 1860 cfs at 11:30PM Apr 12, 2014Observed: 1860 cfs at 11:45PM Apr 12, 2014Observed: 1869 cfs at 12:00AM Apr 13, 2014Observed: 1860 cfs at 12:15AM Apr 13, 2014Observed: 1851 cfs at 12:30AM Apr 13, 2014Observed: 1842 cfs at 12:45AM Apr 13, 2014Observed: 1833 cfs at 1:00AM Apr 13, 2014Observed: 1842 cfs at 1:15AM Apr 13, 2014Observed: 1851 cfs at 1:30AM Apr 13, 2014Observed: 1842 cfs at 1:45AM Apr 13, 2014Observed: 1842 cfs at 2:00AM Apr 13, 2014Observed: 1842 cfs at 2:15AM Apr 13, 2014Observed: 1851 cfs at 2:30AM Apr 13, 2014Observed: 1833 cfs at 2:45AM Apr 13, 2014Observed: 1851 cfs at 3:00AM Apr 13, 2014Observed: 1842 cfs at 3:15AM Apr 13, 2014Observed: 1869 cfs at 3:30AM Apr 13, 2014Observed: 1842 cfs at 3:45AM Apr 13, 2014Observed: 1842 cfs at 4:00AM Apr 13, 2014Observed: 1833 cfs at 4:15AM Apr 13, 2014Observed: 1815 cfs at 4:30AM Apr 13, 2014Observed: 1833 cfs at 4:45AM Apr 13, 2014Observed: 1842 cfs at 5:00AM Apr 13, 2014Observed: 1842 cfs at 5:15AM Apr 13, 2014Observed: 1842 cfs at 5:30AM Apr 13, 2014Observed: 1842 cfs at 5:45AM Apr 13, 2014Observed: 1860 cfs at 6:00AM Apr 13, 2014Observed: 1842 cfs at 6:15AM Apr 13, 2014Observed: 1824 cfs at 6:30AM Apr 13, 2014Observed: 1842 cfs at 6:45AM Apr 13, 2014Observed: 1851 cfs at 7:00AM Apr 13, 2014Observed: 1824 cfs at 7:15AM Apr 13, 2014Observed: 1851 cfs at 7:30AM Apr 13, 2014Observed: 1833 cfs at 7:45AM Apr 13, 2014Observed: 1833 cfs at 8:00AM Apr 13, 2014Observed: 1851 cfs at 8:15AM Apr 13, 2014Observed: 1851 cfs at 8:30AM Apr 13, 2014Observed: 1851 cfs at 8:45AM Apr 13, 2014Observed: 1860 cfs at 9:00AM Apr 13, 2014Observed: 1833 cfs at 9:15AM Apr 13, 2014Observed: 1851 cfs at 9:30AM Apr 13, 2014Observed: 1833 cfs at 9:45AM Apr 13, 2014Observed: 1842 cfs at 10:00AM Apr 13, 2014Observed: 1833 cfs at 10:15AM Apr 13, 2014Observed: 1815 cfs at 10:30AM Apr 13, 2014Observed: 1833 cfs at 10:45AM Apr 13, 2014Observed: 1797 cfs at 11:00AM Apr 13, 2014Observed: 1842 cfs at 11:15AM Apr 13, 2014Observed: 1842 cfs at 11:30AM Apr 13, 2014Observed: 1842 cfs at 11:45AM Apr 13, 2014Observed: 1842 cfs at 12:00PM Apr 13, 2014Observed: 1833 cfs at 12:15PM Apr 13, 2014Observed: 1824 cfs at 12:30PM Apr 13, 2014Observed: 1815 cfs at 12:45PM Apr 13, 2014Observed: 1824 cfs at 1:00PM Apr 13, 2014Observed: 1833 cfs at 1:15PM Apr 13, 2014Observed: 1815 cfs at 1:30PM Apr 13, 2014Observed: 1842 cfs at 1:45PM Apr 13, 2014Observed: 1806 cfs at 2:00PM Apr 13, 2014Observed: 1824 cfs at 2:15PM Apr 13, 2014Observed: 1815 cfs at 2:30PM Apr 13, 2014Observed: 1797 cfs at 2:45PM Apr 13, 2014Observed: 1824 cfs at 3:00PM Apr 13, 2014Observed: 1806 cfs at 3:15PM Apr 13, 2014Observed: 1824 cfs at 3:30PM Apr 13, 2014Observed: 1797 cfs at 3:45PM Apr 13, 2014Observed: 1788 cfs at 4:00PM Apr 13, 2014Observed: 1824 cfs at 4:15PM Apr 13, 2014Observed: 1824 cfs at 4:30PM Apr 13, 2014Observed: 1815 cfs at 4:45PM Apr 13, 2014Observed: 1806 cfs at 5:00PM Apr 13, 2014Observed: 1806 cfs at 5:15PM Apr 13, 2014Observed: 1815 cfs at 5:30PM Apr 13, 2014Observed: 1806 cfs at 5:45PM Apr 13, 2014Observed: 1824 cfs at 6:00PM Apr 13, 2014Observed: 1833 cfs at 6:15PM Apr 13, 2014Observed: 1842 cfs at 6:30PM Apr 13, 2014Observed: 1833 cfs at 6:45PM Apr 13, 2014Observed: 1833 cfs at 7:00PM Apr 13, 2014Observed: 1806 cfs at 7:15PM Apr 13, 2014Observed: 1833 cfs at 7:30PM Apr 13, 2014Observed: 1851 cfs at 7:45PM Apr 13, 2014Observed: 1833 cfs at 8:00PM Apr 13, 2014Observed: 1833 cfs at 8:15PM Apr 13, 2014Observed: 1833 cfs at 8:30PM Apr 13, 2014Observed: 1833 cfs at 8:45PM Apr 13, 2014Observed: 1806 cfs at 9:00PM Apr 13, 2014Observed: 1833 cfs at 9:15PM Apr 13, 2014Observed: 1824 cfs at 9:30PM Apr 13, 2014Observed: 1842 cfs at 9:45PM Apr 13, 2014Observed: 1824 cfs at 10:00PM Apr 13, 2014Observed: 1842 cfs at 10:15PM Apr 13, 2014Observed: 1842 cfs at 10:30PM Apr 13, 2014Observed: 1842 cfs at 10:45PM Apr 13, 2014Observed: 1842 cfs at 11:15PM Apr 13, 2014Observed: 1842 cfs at 11:30PM Apr 13, 2014Observed: 1842 cfs at 11:45PM Apr 13, 2014Observed: 1833 cfs at 12:00AM Apr 14, 2014Observed: 1842 cfs at 12:15AM Apr 14, 2014Observed: 1833 cfs at 12:30AM Apr 14, 2014Observed: 1842 cfs at 12:45AM Apr 14, 2014Observed: 1824 cfs at 1:00AM Apr 14, 2014Observed: 1815 cfs at 1:15AM Apr 14, 2014Observed: 1833 cfs at 1:30AM Apr 14, 2014Observed: 1833 cfs at 1:45AM Apr 14, 2014Observed: 1797 cfs at 2:00AM Apr 14, 2014Observed: 1824 cfs at 2:15AM Apr 14, 2014Observed: 1815 cfs at 2:30AM Apr 14, 2014Observed: 1815 cfs at 2:45AM Apr 14, 2014Observed: 1815 cfs at 3:00AM Apr 14, 2014Observed: 1815 cfs at 3:15AM Apr 14, 2014Observed: 1842 cfs at 3:30AM Apr 14, 2014Observed: 1824 cfs at 3:45AM Apr 14, 2014Observed: 1824 cfs at 4:00AM Apr 14, 2014Observed: 1815 cfs at 4:15AM Apr 14, 2014Observed: 1815 cfs at 4:30AM Apr 14, 2014Observed: 1833 cfs at 4:45AM Apr 14, 2014Observed: 1806 cfs at 5:00AM Apr 14, 2014Observed: 1842 cfs at 5:15AM Apr 14, 2014Observed: 1824 cfs at 5:30AM Apr 14, 2014Observed: 1806 cfs at 5:45AM Apr 14, 2014Observed: 1815 cfs at 6:00AM Apr 14, 2014Observed: 1824 cfs at 6:15AM Apr 14, 2014Observed: 1842 cfs at 6:30AM Apr 14, 2014Observed: 1833 cfs at 6:45AM Apr 14, 2014Observed: 1824 cfs at 7:00AM Apr 14, 2014Observed: 1833 cfs at 7:15AM Apr 14, 2014Observed: 1824 cfs at 7:30AM Apr 14, 2014Observed: 1824 cfs at 7:45AM Apr 14, 2014Observed: 1806 cfs at 8:00AM Apr 14, 2014Observed: 1824 cfs at 8:15AM Apr 14, 2014Observed: 1842 cfs at 8:30AM Apr 14, 2014Observed: 1833 cfs at 8:45AM Apr 14, 2014Observed: 1797 cfs at 9:00AM Apr 14, 2014Observed: 1815 cfs at 9:15AM Apr 14, 2014Observed: 1797 cfs at 9:30AM Apr 14, 2014Observed: 1806 cfs at 9:45AM Apr 14, 2014Observed: 1788 cfs at 10:00AM Apr 14, 2014Observed: 1815 cfs at 10:15AM Apr 14, 2014Observed: 1806 cfs at 10:30AM Apr 14, 2014Observed: 1824 cfs at 10:45AM Apr 14, 2014Observed: 1806 cfs at 11:00AM Apr 14, 2014Observed: 1797 cfs at 11:15AM Apr 14, 2014Observed: 1770 cfs at 11:30AM Apr 14, 2014Observed: 1734 cfs at 11:45AM Apr 14, 2014Observed: 1743 cfs at 12:00PM Apr 14, 2014Observed: 1761 cfs at 12:15PM Apr 14, 2014Observed: 1726 cfs at 12:30PM Apr 14, 2014Observed: 1663 cfs at 12:45PM Apr 14, 2014Observed: 1690 cfs at 1:00PM Apr 14, 2014Observed: 1699 cfs at 1:15PM Apr 14, 2014Observed: 1770 cfs at 1:30PM Apr 14, 2014Observed: 1797 cfs at 1:45PM Apr 14, 2014Observed: 1842 cfs at 2:00PM Apr 14, 2014Observed: 1824 cfs at 2:15PM Apr 14, 2014Observed: 1887 cfs at 2:30PM Apr 14, 2014Observed: 1896 cfs at 2:45PM Apr 14, 2014Observed: 1905 cfs at 3:00PM Apr 14, 2014Observed: 1905 cfs at 3:15PM Apr 14, 2014Observed: 1905 cfs at 3:30PM Apr 14, 2014Observed: 1896 cfs at 3:45PM Apr 14, 2014Observed: 1932 cfs at 4:00PM Apr 14, 2014Observed: 1941 cfs at 4:15PM Apr 14, 2014Observed: 1941 cfs at 4:30PM Apr 14, 2014Observed: 1932 cfs at 4:45PM Apr 14, 2014Observed: 1977 cfs at 5:00PM Apr 14, 2014Highest Observation: 1986 cfs at 5:15PM Apr 14, 2014Observed: 1941 cfs at 5:30PM Apr 14, 2014Observed: 1950 cfs at 5:45PM Apr 14, 2014Observed: 1950 cfs at 6:00PM Apr 14, 2014Observed: 1959 cfs at 6:15PM Apr 14, 2014Observed: 1914 cfs at 6:30PM Apr 14, 2014Observed: 1923 cfs at 6:45PM Apr 14, 2014Observed: 1923 cfs at 7:00PM Apr 14, 2014Observed: 1923 cfs at 7:15PM Apr 14, 2014Observed: 1923 cfs at 7:30PM Apr 14, 2014Observed: 1932 cfs at 7:45PM Apr 14, 2014Observed: 1914 cfs at 8:00PM Apr 14, 2014Observed: 1932 cfs at 8:15PM Apr 14, 2014Observed: 1941 cfs at 8:30PM Apr 14, 2014Observed: 1923 cfs at 8:45PM Apr 14, 2014Observed: 1923 cfs at 9:00PM Apr 14, 2014Observed: 1941 cfs at 9:15PM Apr 14, 2014Observed: 1941 cfs at 9:30PM Apr 14, 2014Observed: 1950 cfs at 9:45PM Apr 14, 2014Observed: 1932 cfs at 10:00PM Apr 14, 2014Observed: 1923 cfs at 10:15PM Apr 14, 2014Observed: 1932 cfs at 10:30PM Apr 14, 2014Observed: 1932 cfs at 10:45PM Apr 14, 2014Observed: 1923 cfs at 11:15PM Apr 14, 2014Observed: 1932 cfs at 11:30PM Apr 14, 2014Observed: 1932 cfs at 11:45PM Apr 14, 2014Observed: 1950 cfs at 12:00AM Apr 15, 2014Observed: 1959 cfs at 12:15AM Apr 15, 2014Observed: 1932 cfs at 12:30AM Apr 15, 2014Observed: 1950 cfs at 12:45AM Apr 15, 2014Observed: 1941 cfs at 1:00AM Apr 15, 2014Observed: 1923 cfs at 1:15AM Apr 15, 2014Observed: 1950 cfs at 1:30AM Apr 15, 2014Observed: 1950 cfs at 1:45AM Apr 15, 2014Observed: 1941 cfs at 2:00AM Apr 15, 2014Observed: 1950 cfs at 2:15AM Apr 15, 2014Observed: 1941 cfs at 2:30AM Apr 15, 2014Observed: 1941 cfs at 2:45AM Apr 15, 2014Observed: 1941 cfs at 3:00AM Apr 15, 2014Observed: 1932 cfs at 3:15AM Apr 15, 2014Observed: 1950 cfs at 3:30AM Apr 15, 2014Observed: 1950 cfs at 3:45AM Apr 15, 2014Observed: 1932 cfs at 4:00AM Apr 15, 2014Observed: 1923 cfs at 4:15AM Apr 15, 2014Observed: 1941 cfs at 4:30AM Apr 15, 2014Observed: 1932 cfs at 4:45AM Apr 15, 2014Observed: 1941 cfs at 5:00AM Apr 15, 2014Observed: 1941 cfs at 5:15AM Apr 15, 2014Observed: 1941 cfs at 5:30AM Apr 15, 2014Observed: 1914 cfs at 5:45AM Apr 15, 2014Observed: 1914 cfs at 6:00AM Apr 15, 2014Observed: 1923 cfs at 6:15AM Apr 15, 2014Observed: 1950 cfs at 6:30AM Apr 15, 2014Observed: 1932 cfs at 6:45AM Apr 15, 2014Observed: 1932 cfs at 7:00AM Apr 15, 2014Observed: 1932 cfs at 7:15AM Apr 15, 2014Observed: 1941 cfs at 7:30AM Apr 15, 2014Observed: 1932 cfs at 7:45AM Apr 15, 2014Observed: 1914 cfs at 8:00AM Apr 15, 2014Observed: 1941 cfs at 8:15AM Apr 15, 2014Observed: 1941 cfs at 8:30AM Apr 15, 2014Observed: 1932 cfs at 8:45AM Apr 15, 2014Observed: 1941 cfs at 9:00AM Apr 15, 2014Observed: 1923 cfs at 9:15AM Apr 15, 2014Observed: 1896 cfs at 9:30AM Apr 15, 2014Observed: 1878 cfs at 9:45AM Apr 15, 2014Observed: 1887 cfs at 10:00AM Apr 15, 2014Observed: 1923 cfs at 10:15AM Apr 15, 2014Observed: 1905 cfs at 10:30AM Apr 15, 2014Observed: 1878 cfs at 10:45AM Apr 15, 2014Observed: 1851 cfs at 11:00AM Apr 15, 2014Observed: 1806 cfs at 11:15AM Apr 15, 2014Observed: 1788 cfs at 11:30AM Apr 15, 2014Observed: 1752 cfs at 11:45AM Apr 15, 2014Observed: 1761 cfs at 12:00PM Apr 15, 2014Observed: 1752 cfs at 12:15PM Apr 15, 2014Observed: 1761 cfs at 12:30PM Apr 15, 2014Observed: 1752 cfs at 12:45PM Apr 15, 2014Observed: 1699 cfs at 1:00PM Apr 15, 2014Observed: 1654 cfs at 1:15PM Apr 15, 2014Observed: 1681 cfs at 1:30PM Apr 15, 2014Observed: 1717 cfs at 1:45PM Apr 15, 2014Observed: 1806 cfs at 2:00PM Apr 15, 2014Observed: 1869 cfs at 2:15PM Apr 15, 2014Observed: 1851 cfs at 2:30PM Apr 15, 2014Observed: 1806 cfs at 2:45PM Apr 15, 2014Observed: 1734 cfs at 3:00PM Apr 15, 2014Observed: 1699 cfs at 3:15PM Apr 15, 2014Observed: 1699 cfs at 3:30PM Apr 15, 2014Observed: 1699 cfs at 3:45PM Apr 15, 2014Observed: 1690 cfs at 4:00PM Apr 15, 2014Observed: 1654 cfs at 4:15PM Apr 15, 2014Observed: 1627 cfs at 4:30PM Apr 15, 2014Observed: 1708 cfs at 4:45PM Apr 15, 2014Observed: 1752 cfs at 5:00PM Apr 15, 2014Observed: 1788 cfs at 5:15PM Apr 15, 2014Observed: 1806 cfs at 5:30PM Apr 15, 2014Observed: 1779 cfs at 5:45PM Apr 15, 2014Observed: 1726 cfs at 6:00PM Apr 15, 2014Observed: 1734 cfs at 6:15PM Apr 15, 2014Observed: 1761 cfs at 6:30PM Apr 15, 2014Observed: 1734 cfs at 6:45PM Apr 15, 2014Observed: 1726 cfs at 7:00PM Apr 15, 2014Observed: 1726 cfs at 7:15PM Apr 15, 2014Observed: 1761 cfs at 7:30PM Apr 15, 2014Observed: 1726 cfs at 7:45PM Apr 15, 2014Forecast: 1966 cfs 12:00AM Apr 16, 2014Forecast: 1961 cfs 6:00AM Apr 16, 2014Forecast: 2017 cfs 12:00PM Apr 16, 2014Forecast: 2242 cfs 6:00PM Apr 16, 2014Forecast: 2245 cfs 12:00AM Apr 17, 2014Forecast: 2240 cfs 6:00AM Apr 17, 2014Forecast: 2235 cfs 12:00PM Apr 17, 2014Forecast: 2229 cfs 6:00PM Apr 17, 2014Forecast: 2224 cfs 12:00AM Apr 18, 2014Forecast: 2219 cfs 6:00AM Apr 18, 2014Forecast: 2214 cfs 12:00PM Apr 18, 2014Forecast: 2209 cfs 6:00PM Apr 18, 2014Forecast: 2203 cfs 12:00AM Apr 19, 2014Forecast: 2198 cfs 6:00AM Apr 19, 2014Forecast: 2193 cfs 12:00PM Apr 19, 2014Forecast: 2188 cfs 6:00PM Apr 19, 2014Forecast: 2183 cfs 12:00AM Apr 20, 2014Forecast: 2177 cfs 6:00AM Apr 20, 2014Forecast: 2172 cfs 12:00PM Apr 20, 2014Forecast: 2209 cfs 6:00PM Apr 20, 2014Highest Forecast: 2356 cfs 12:00AM Apr 21, 2014Highest Forecast: 2356 cfs 6:00AM Apr 21, 2014Forecast: 2351 cfs 12:00PM Apr 21, 2014Forecast: 2346 cfs 6:00PM Apr 21, 2014Forecast: 2341 cfs 12:00AM Apr 22, 2014Forecast: 2336 cfs 6:00AM Apr 22, 2014Forecast: 2330 cfs 12:00PM Apr 22, 2014Forecast: 2325 cfs 6:00PM Apr 22, 2014USGS--Water Resources of the United StatesBIGI1(plotting QRIRZ) Graph Created (10:00PM Apr 15, 2014)ObservedForecast (issued 9:15AM Apr 15)Latest observed value: 1726 cfs at 7:45 PM MDT 15-Apr-2014. Flood Flow is 7 kcfs
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Boise River at Boise are issued routinely year-round.

Vertical datum height surveyed by the USGS

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Locations
Flood Categories (in KCFS)
Major Flood Flow:15
Moderate Flood Flow:11
Flood Flow:7
Action Flow:6.5

Historical Crests
(1) 9,840 cfs on 06/13/1983
(2) 8,350 cfs on 05/31/1998
(3) 8,310 cfs on 05/05/2012
(4) 8,030 cfs on 06/07/1986
(5) 7,630 cfs on 06/29/1982
(6) 7,564 cfs on 06/06/1983
(7) 7,440 cfs on 04/30/2006
(8) 7,300 cfs on 03/27/1997
Show More Historical Crests

Low Water Records
(1) 42 cfs on 10/26/1983
(2) 109 cfs on 10/22/1985
(3) 110 cfs on 12/29/1988
Show More Low Water Records
Zoom Level: 14
Gauge Location
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
 
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
16000 OR 13.3 FEET... MAJOR FLOODING WILL OCCUR NEAR THE RIVER IN BOISE... GARDEN CITY... EAGLE... STAR... AND CALDWELL. SOME RESIDENTIAL AREAS IN LOW LYING AREAS NEAR THE RIVER WILL BE FLOODED WITH WATER ENTERING SOME HOUSES. A FLOOD OF THIS MAGNITUDE HAS NOT OCCURED ON THE BOISE RIVER SINCE 1943. MOST OF THE AREA WITHIN THE 100 YEAR FLOOD PLAIN... INCLUDING MANY CITY PARKS NEAR THE RIVER... WILL BE UNDERWATER. DEBRIS PILING UP ON BRIDGE CROSSINGS WILL CAUSE ADDITIONAL FLOOD DAMAGE.
12000 OR 12.5 FEET... FLOODING WILL OCCUR IN LOW AREAS AND PARK LAND ADJACENT TO THE RIVER IN BOISE... GARDEN CITY... EAGLE... STAR... AND CALDWELL. FLOODING OF LOW LYING RESIDENTIAL STREETS IN AREAS ADJACENT TO THE RIVER IS LIKELY... ESPECIALLY ON PORTIONS OF EAGLE ISLAND. DEBRIS DAMMING ON BRIDGES CROSSING THE RIVER WILL OCCUR AND MAY CAUSE WATER TO SPILL OVER THE ROAD SURFACES LEADING UP TO THE BRIDGE. PARK CENTER BOULEVARD IN SOUTHEAST BOISE WILL BE FLOODED NEAR THE PARK CENTER POND.
10500 OR 12.0 FEET... FLOODING OVER PARK CENTER BOULEVARD IN SOUTHEAST BOISE NEAR THE PARK CENTER POND WILL OCCUR. FLOODING NEAR THE RIVER WILL OCCUR IN LOW AREAS OF BOISE... GARDEN CITY... EAGLE... STAR AND CALDWELL. PORTIONS OF EAGLE ISLAND WILL BE SUBMERGED WITH FLOODING OF RESIDENTIAL PROPERTY IN LOW LYING AREAS NEAR THE RIVER LIKELY. THE WATER SHOULD REMAIN BELOW THE LEVEL OF MOST RESIDENTIAL STRUCTURES...BUT ACCESS IN AND OUT OF SOME NEIGHBORHOODS MAY BE LIMITED BY HIGH WATER.
9500 OR 11.5 FEET... MODERATE FLOODING OF LOW AREAS NEAR THE RIVER IN BOISE...GARDEN CITY...EAGLE...STAR...AND CALDWELL WILL OCCUR. DEBRIS IN THE RIVER WILL COLLECT ON BRIDGES CROSSING THE RIVER. WATER WILL COVER PORTIONS OF WARM SPRINGS GOLF COURSE AND MUNICIPAL PARK IN EAST BOISE. THE WATER MAY AFFECT SOME RESIDENTIAL PROPERTY NEAR THE RIVER...BUT SHOULD STAY BELOW THE LEVEL OF MOST RESIDENTIAL STRUCTURES.
8900 OR 11.2 FEET... LARGE SECTIONS OF THE GREEN BELT WILL BE SUBMERGED AND SEVERE BANK EROSION WILL OCCUR. FLOODING WILL OCCUR IN LOW AREAS CLOSE TO THE RIVER IN BOISE...GARDEN CITY...EAGLE AND CALDWELL...BUT THE WATER SHOULD REMAIN BELOW THE LEVEL OF MOST RESIDENTIAL AREAS. THE RIVER WILL SPILL OVER ITS BANKS BETWEEN 45TH AND 46TH STREET IN GARDEN CITY INTO THE WAREHOUSE DISTRICT.
7000 OR 10.2 FEET... LARGE SECTIONS OF THE GREENBELT PATH ADJACENT TO THE RIVER WILL BE SUBMERGED. EROSION OF RIVER BANKS WILL ALSO BECOME A SIGNIFICANT PROBLEM. DEBRIS IN THE RIVER INCLUDING SMALL TREES AND LOGS MAY BEGIN PILING UP AT BRIDGE CROSSINGS. MINOR FLOODING WILL BE OBSERVED ON SECTIONS OF EAGLE ISLAND AND IN OTHER LOW SPOTS NEAR THE RIVER. MINOR FLOODING WILL SPREAD DOWNSTREAM TO LOW AREAS NEAR THE RIVER IN STAR AND CALDWELL.
6500 OR 9.9 FEET... LARGE SECTIONS OF THE GREENBELT PATH ADJACENT TO THE RIVER WILL BE SUBMERGED. MINOR FLOODING MAY AFFECT PORTIONS OF EAGLE ISLAND.
4000 OR 8.5 FEET... WATER WILL BEGIN SEEPING ONTO LOW SPOTS ON THE GREENBELT PATH NEXT TO THE RIVER ESPECIALLY NEAR BRIDGE UNDERPASSES.
About This Location Collapse

Latitude: 43.660556° N, Longitude: 116.279167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS flow Not Available Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 2600 ft 2610.4 ft  

Current/Historical Observations:

Additional Information Collapse
Flood Flow = 7000 cfs. The latest USGS rating shows this flow now corresponds to a river stage of 10.2 feet when measured at Glenwood Bridge.
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Boise Weather Forecast Office
NIFC Building 3807
Boise, ID 83705-5354
(208) 334-9860
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Page last modified: 8-Apr-2014 6:36 AM
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