2020總計2933.9199868.10048059273.79.328879648567.219.3326289295.23.244827704
2020中央管河川小計2257.81532.466.44920488219.312.0256159438.227.929419876810.96533816
2020淡水河系323.4212.865.800865832.410.0185528859.618.4291898618.65.751391466
2020蘭陽溪73.173.1100000000
2020鳳山溪45.435.277.533039653.88.3700440536.514.3171806200
2020頭前溪6363100000000
2020中港溪54.14379.482439936.712.38447324.37.94824399300
2020後龍溪5849.3852.23.7931034486.511.2068965500
2020大安溪95.894.398.4342381.51.5657620040000
2020大甲溪140.2127.691.012838811.78.3452211130.8000
2020烏溪116.897.783.6472602711.910.188356167.26.16438356200
2020濁水溪186.417392.811158813.400000
2020北港溪81.911.213.675213685.16.22710622753.965.8119658111.814.40781441
2020朴子溪75.736.247.820343464.55.94451783435.146.367239100
2020八掌溪80.936.144.6229913510.512.978986434.342.3980222500
2020急水溪65.124.737.9416282610.115.5145929320.130.8755760410.215.66820276
2020曾文溪138.572.752.490974732215.884476534331.046931410.70
2020鹽水溪41.314.434.866828095.713.8014527818.845.520581112.45.811138015
2020二仁溪65.21.62.453987737.311.1963190240.662.2699386515.724.0797546
2020阿公店溪29.79.130.63973064826.936026947.525.252525255.117.17171717
2020高屏溪170.970.841.4277355227.816.266822770.641.310708021.70.994733762
2020東港溪46.920.443.4968017112.827.2921108711.925.373134331.83.837953092
2020四重溪31.926.683.385579942.78.4639498432.78.46394984300
2020卑南溪84.484.4100000000
2020秀姑巒溪81.253.966.3793103415.919.5812807911.414.0394088700
2020花蓮溪57.350.688.307155323.35.7591623043.45.93368237300
2020和平溪50.750.7100000000
2020縣(市)管河川小計634.3441.676.1989451246.211.4968001119.824.7556343527.215.86222487
2020南澳溪43.942.296.1275626412.2779043280.81.82232346200
2020蘇澳溪8.88.192.04545455000.7000
2020新城溪18.118.1100000000
2020得子口溪19.38.544.041450783.116.062176177.337.82383420.40
2020雙溪26.826.8100000000
2020南崁溪30.7000019.663.8436482111.136.15635179
2020老街溪37.138.0862533695.214.0161725128.376.280323450.71.886792453
2020社子溪24.2728.925619834.116.9421487612.350.826446280.93.719008264
2020西湖溪32.527.584.61538462515.384615380000
2020新虎尾溪49.81.42.811244983.46.82730923734.268.674698810.821.68674699
2020林邊溪42.237.989.810426540.30.7109004740.92.1327014223.20
2020枋山溪25.723.691.82879377002.1000
2020楓港溪20.420.4100000000
2020保力溪14.912.785.234899331.28.05369127516.71140939600
2020港口溪31.228.691.66666667002.6000
2020知本溪39.33691.603053442.900.41.01781170500
2020利 嘉 溪37.73387.53315653.59.2838196291.23.18302387300
2020太平溪2013.366.53.517.53.115.50.10
2020吉安溪11.410.289.473684210.54.3859649120.76.14035087700
2020美崙溪19.613.468.367346944.9251.47.14285714300
2020立霧溪58.447.681.506849327.613.013698633.25.47945205500
2020率芒溪22.322.3100000000
2020其他河川小計41.82456.138532048.220.370182569.233.839869280.51.723856209
2020福興溪15.37.951.633986932.113.7254902532.679738560.42.614379085
2020鹽港溪12433.333333333.730.833333334.2350.10.833333333
2020磺溪14.512.183.448275862.416.551724140000