Home Archived February 7, 2019
Site Information
01396500   South Branch Raritan River near High Bridge, NJ
Location:Latitude 40�'40", Longitude 74�'45", Hunterdon County, Hydrologic Unit 02030105, on left bank 1.0 mi northeast of High Bridge, and 4.4 mi upstream from Spruce Run.
Drainage Area:Continuous Period of Record:RemarksSite Type:Baseline Period of Record:Baseline Quality
65.31918-2005Occasional regulation from unknown source.A1918-1970EXCELLENT

Hydrologic Indices
Flow RegimeFlow EventIndex NameIndex Value
Index Type
Average FlowSurrogate for25th Percentile*Value75th Percentile*
Temporal MA147114.32138
Temporal MA24780138
Temporal MA378.2493.81116.22
Spatial MA415.5515.2223.27
Spatial MA51.51.431.81
Spatial MA69.276.7322
Spatial MA74.133.838.25
Spatial MA83.012.945.36
Spatial MA90.450.440.67
Spatial MA100.290.310.44
Spatial MA110.240.250.35
Temporal MA1280.47114.65160.31
Temporal MA13102.18134.89182
Temporal MA14148.95177.58255.34
Temporal MA15124.28162.7244.08
Temporal MA1691.69122.29162.02
Temporal MA1754.1770.6396.7
Temporalac MA1840.9757.1987.98
Temporal MA1937.4254.2994.11
Temporal MA2031.4543.992.95
Temporal MA2137.2355.7779.19
Temporal MA2248.883.33145.07
Temporal MA2368.98107.81164.52
Temporal MA2435.6353.875.2
Temporal MA2532.7961.0182.07
Temporalb MA26MA1835.6448.2870.53
Temporal MA2733.6444.0451.38
Temporal MA2831.0439.6149.63
Temporal MA2923.5336.4352.72
Temporal MA3018.6336.179.28
Temporal MA3126.3144.1573.79
Temporal MA3216.9938.3471.8
Temporal MA3319.6736.780.4
Temporal MA3436.0260.8584.34
Temporal MA3545.0255.4672.02
Spatial MA364.224.566.16
Spatialb MA37MA181.031.041.56
Spatial MA381.911.862.67
Spatialb MA39MA1865.8563.0283.59
Spatial MA400.160.170.33
Temporal MA411.431.752.06
Spatial MA420.981.481.38
Spatial MA430.350.370.46
Spatial MA440.640.620.81
Spatial MA4500.020.04
Low Flow
Temporalc ML1436080
Temporalc ML2487085
Temporalc ML369.5100120.5
Temporalc ML476.594123.5
Temporalc ML556.57487
Temporalac ML636.54659.5
Temporalc ML730.53644
Temporalc ML8253241.5
Temporalc ML9253145
Temporalc ML10283544
Temporalc ML1130.54757
Temporalc ML1237.55074
Temporalb ML13ML660.1754.8182.11
Temporal ML140.270.330.4
Temporal ML150.20.240.29
Temporalb ML16ML60.270.330.4
Temporal ML170.220.260.32
Spatial ML1839.9124.6168.72
Temporal ML1919.9823.9428.91
Spatial ML200.440.620.55
Spatial ML2142.5529.4969.33
Temporal ML220.340.40.47
High Flow
Temporal MH1180361600.5
Temporal MH2252453672.5
Temporal MH3364.5529710
Temporal MH4233.5468641.5
Temporalac MH5209.5262404.5
Temporal MH6105176307.5
Temporal MH765.5139393
Temporal MH878.5144340.5
Temporal MH961.5115309.5
Temporal MH1062.5119297.5
Temporal MH11118.5359560
Temporal MH12180312632.5
Spatial MH1393.8189.38114.16
Temporal MH149.6512.515.27
Spatial MH158.767.513.21
Spatialb MH16MH53.082.784.07
Spatial MH171.761.732.22
Spatialb MH18MH54.945.56.87
Spatial MH19-
Temporalb MH20MH511.3715.0119.99
Temporal MH2113.5416.6918.03
Temporal MH223.595.185.58
Temporal MH233.394.394.88
Temporal MH241.233.54.06
Temporal MH253.696.077.04
Temporal MH268.1910.712.18
Temporal MH272.134.435.35
Index Type
Low FlowSurrogate for
Spatialbc FL1FL361013
Spatial FL241.0346.7249.22
Temporala FL3000
High Flow
Temporalb FH1FH4121720
Spatial FH225.9335.1535.5
Temporalbc FH3FH418.52637
Temporala FH41.546
Temporal FH511.51416.5
Temporal FH691215
Temporal FH7134.5
Temporal FH8121720
Temporalb FH9FH47912
Temporal FH10115
Temporal FH11
Index Type
Low FlowSurrogate for
Temporal DL1222630.5
Temporal DL222.672731.67
Temporal DL324.0728.4332.29
Temporalac DL427.9334.2740.02
Temporal DL536.0945.763.02
Spatialb DL6DL442.5529.4969.33
Spatial DL741.8129.8267.21
Spatial DL840.0335.9262.6
Spatial DL946.6744.3674.66
Spatial DL1045.7747.4572.12
Temporal DL110.280.340.38
Temporalb DL12DL40.30.380.4
Temporal DL130.350.460.5
Temporal DL140.420.590.58
Temporal DL150.210.410.34
Temporalb DL16DL46.068.9911.78
Spatial DL1748.964.5868.18
Temporal DL18000
Spatial DL19NC0NC
Spatial DL20NC0NC
High Flow
Temporal DH1742.59801305
Temporalac DH2483.67670828.42
Temporal DH3351.45443.14549.21
Temporal DH4205.18265.83321.14
Temporal DH5154.95201.64226.27
Spatial DH641.8740.357.44
Spatial DH739.6635.1549.95
Spatialb DH8DH233.2830.2441.55
Spatial DH926.1527.8533.42
Spatial DH1025.3725.9729.39
Temporal DH119.2813.216.31
Temporal DH124.395.756.87
Spatialb DH13DH22.573.394.01
Spatial DH140.10.270.21
Temporal DH153.685.256.98
Spatial DH1630.5656.0946.84
Temporal DH179.1312.4317.26
Temporal DH181.812.132.82
Temporal DH1911.331.55
Temporalb DH20DH23.685.256.98
Temporal DH2119.6731.143.57
Temporal DH22
Temporal DH23
Temporal DH24
Index Type
Average FlowSurrogate for
Spatial TA10.430.560.55
Spatial TA257.7464.0464.06
Spatial TA3
Low Flow
Spatiala TL1246.84261.31262.49
Spatial TL232.1739.241.58
Spatial TL3
Spatial TL4
High Flow
Spatiala TH142.850.670.44
Spatial TH264.5164.6271.59
Spatial TH3
Rate of Change
Index Type
Average FlowSurrogate for
Temporal RA131046
Spatial RA2211.25229.3271.7
Temporalac RA3-21-8-3
Spatial RA4-289.34-265.27-225.38
Spatialb RA5RA30.280.30.31
Temporal RA60.050.140.39
Temporalb RA7RA3-0.19-0.09-0.05
Temporalb RA8RA3114122132
Spatial RA97.9111.911.49

a primary index as determined from the New Jersey Hydrologic Integrity Assessment Process (Henriksen and others, 2006; Kennen and others, 2007)
b surrogate index as determined from the New Jersey Hydrologic Integrity Assessment Process (Henriksen and others, 2006; Kennen and others, 2007)
c primary regulatory index for the New Jersey Department of Environmental Protection (J.L. Hoffman, NJDEP, written commun., 2007).

# indicates that site is an index station

* If the index is spatial, percentile values are from the distribution of values for the selected index for all sites of the same stream type if the index is spatial

** These sites are index sites, which are considered to be relatively undeveloped (least amount of urbanization, less than 15% urban landuse) for a long period of record (at least 50 years). The entire period of record for these sites are considered baseline.

NC value could not be calculated