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Area Mainstem
Topic Sediment: Road-Related Erosion Sources by Volume in Mill Creek 1998

Caption:  The Source Table sediment_road_mill_mcrcdpwa_1998.db shows potential future sources of road-relation erosion in Mill Creek, based on phase 1 road survey data collected during 1998. Data were provided by the Mendocino County Resource Conservation District and PWA (1999). See Info Links for more information, including a full key to column headings.

 50 rows of a possible 167 have been displayed.
Site__GPS_coordWatershedCALWAAPhotoRoad_SystemRoadMileageInspectorDateYear_BuiltSurfaceSketch_Road_classTreat_Maintained_Abandoned_Decomissioned_Driveable_Upgrade_Decomission_Maintenance_ProblemLocation_of_problemAverage_road_widthRoad_related_Harvest__historyGeomorphic_associationroad_fill_failure_landing_fill_failure_cutbank_slide_deep_slow_landslide_hillslope_debris_slidestreamside_slide_Did_slide_torrent_Slope_shapeSlope__distance_to_stream__ftalready_failed_potential_failure_CulvertBridgeHumboldtFillFordArmored_fillWashed_outPulled_crossing__PulledLeft_ditch_road__lengtRight_ditch_road_lengtPipe_diameter__in_InletOutletBottomHeadwall_height__in_Cmp_slope_Stream_classRustline_at_inlet__in_CMP_appears_undersized__washed_outDiversion_Potential_Currently_diverted_Diverted_in_past__Road_Grade_Culvert_plug_potentialChannel_grade_Channel_width__ft_Channel_depth__ft_Sediment_TransportDrainage_AreaNowBankfulNow_widthNow_depthBF_widthBF_depth50_Yr_Q__cfs_100_Yr_Q__cfs_Erosion_PotentialPotential_for_extreme_Volume_of_extreme_erosAge_of_past_erosion__dRoad_surface__ditch__fGullied_fillslopeFill_failureCutbank_failureHillslope_failureStreambank_and_channelStream_crossing_failurTotal_Past_Erosion__ydPast_delivery_Total_Past_Yield__yds3Future_Erosion__yds3_Future_delivery_Future_width__ft_Future_depth__ft_Future_length__ft_Future_Yield__yds3_Comment_on_ProblemImmediacyRating_ComplexitySq_Ft_MulchedExcavate_SoilInstall_critical_dipInstall_wet_crossingsill_hgt__ft_sill_width__ft_Add_trash_rackAdd_downspoutDS_length__ft_Repair_culvertClean_culvertInstall_culvert_at_croReplace_culvert_at_croculvert_diameter__in_culvert_length__ft_Reconstruct_fillArmor_fill_face_ft2_Clean_or_cut_ditchDitch__ft_Outslope_roadOS__ft_OS_and_retain_ditchOS___retain_ditch___ftInslope_roadIS__ft_Rolling_dipsRD____Remove_BermRB__ft_Remove_DitchDitch_length__ft_Rock_surfaceRS__ft_Install_ditch_relief_cDRC____Check_culvert_sizeCalculated_culvert_sizCalculated_culvert_siz_1Install_flared_inletInstall_bridgeOther_treatmentNonePL_solutionwhy_Total_volume_excavatedVolume_put_back_in__ydVolume_removed__yds_Volume_stockpiled__ydsVolume_endhauled__yds_Distance_endhauled__ftExcavator_production_rExcavatorDozerDump_truckGraderLoaderBackhoeLaborOtherComment_on_treatment
109-Mill Creek02-159HolmesHolmes0TK,MM9/22/980RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower30TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0300018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--020000021002210021252DRC drains 300' of left ditch. Inlet is partially crushed and plugged. 30' full round downspout deposits water on old road below. Then water gullies across road and down slope 25' to Mill Creek below, 3x1x40. It may have caused fill failure, of old roL0L0FALSEFALSE-00FALSEFALSE0FALSETRUEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0TRUE300FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000001101. Remove berm for 300' by sidecasting. 2. Clean DRC inlet and outlet- hand shovel would do.
31-Mill Creek08-156Nash-MillNash-Mill0TK,NC9/11/9814NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertUpper25TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01480015OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--00000000000000001480' road length with two 15" DRC's located at 519' and 949' multiple berms and insloped road collect water. DRC's do not deliver sediment to stream. One ephemeral draw with no signs of recent activity located at 900'. Easy to install rolling dips inL0-0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0TRUE6TRUE1480FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Remove berm 2- Install 6 rolling dips -install one below ephemeral draw -leave 2 DRC's in place with short segments of ditch and install rolling dips along remainder of road
32-Mill Creek08-156Nash Mill 1Little Mill Creek0MM,BL9/11/982RockedTRUE0TRUETRUEFALSEFALSETRUEFALSETRUETRUEDitch relief culvertUpper16TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE02600012OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--00000000000000002600' of maintained driveable road with IBD and outboard berm throughout. No delivery in this site, however to help eliminate unnecessary maintenance the berm should be removed on OBR and rolling dips should be installed in natural swales. Sidecasting bML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0TRUE7TRUE2000FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Remove berm along 2000' of road. - berm is intermittent. 2- Install 7 rolling dips spaced approx. 300' apart. -Install dips in natural swale where possible and spaced throughout existing DRC's to maximize water draining efficiency.
132-Mill Creek02-161HolmesHolmes0MM,RL9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertUpper20TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE051921018OOO0000-0FALSEFALSEFALSE0L000M000000000MFALSE--030000003010030151002120015519' of IBD to left and 210' of IBD to right feed into 18" DRC IRON). Small gully caused by 5' shotgun outlet assumed to deliver to Class 3 stream below.ML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0TRUE2TRUE320FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Retain DRC and place rolling dip at this site. 2. Remove berm and sidecast with spoil for 165' to right and 152' left of site. 3. Place rolling dip 165' right of site.
131-Mill Creek02-161HolmesHolmes0MM,RL9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertUpper20TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE00110718OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000Ridge top road, no delivery, or much signs of erosion. One 18" DRC, in swale, with an almost plugged outlet. Part of road can be outsloped, but the majority of its distance is too level.L0-0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope road through swale approx. 230'. 2. Install 3 rolling dips. One 30' left of old DRC location, the other two at outslope break locations. No treatment for the rest of the reach.
126-Mill Creek02-161HolmesHolmes0MM,TK9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle25TRUE-IGFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE054010024OOO0000-0FALSEFALSEFALSE0-000-000000000MFALSE--031000003110031311003122031540' left ditch, 100' of right ditch, and 200' of concentrated skid trail gully. Skid trail needs to be looked at, may have small stream diversions. It needs waterbars. It has potential to scour deeper. a few gullies, come off cutbank to left. DRC guM0L0FALSEFALSE-00FALSETRUE20FALSEFALSEFALSEFALSE--FALSE-0FALSE0TRUE640FALSE0FALSE0TRUE2FALSE0FALSE0FALSE0TRUE2FALSE00FALSEFALSEFALSEFALSE000000000000001201. Outslope road 540' to left and 100' right of DRC. 2. install 2 rolling dips, just below gullies, one 110' to left of DRC and one 290' up left from DRC. 3. Replace old downspout with new 24", 20' long. 4. Keep inlet open for DRC, make sure gully 1
125-Mill Creek02-161HolmesHolmes0TK,MM9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle-TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0028718POO0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--015400000154100154391004126039287' of road runoff and 200' of driveway runoff exit ditch via 18" DRC. Below DRC erosion approx. 260' to class 3 stream (deep gully 154yds3). Gully evident of one time event, therefore low immediacy. Need to access driveway runoff 200'. Seems excessiL0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE180FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope road for 180' by filling ditch with berm. leave ditch open below driveway to receive driveway runoff. 2. Clean inlet of DRC.
122-Mill Creek02-161HolmesHolmes0MM,TK9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle26TRUE-STFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0418024OOO0000-0FALSEFALSEFALSE0-000-000000000HMFALSE--015100000151100151300412000Not a natural stream. Small 6-10" DRC, from private road above, causes gully which begins above DRC on Smith Hill Road. At DRC outlet there are 7' sink holes. Beyond that approx. 40', a 4*5 gully continues through glade. There is a broad swale here, buM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE--FALSE-0FALSE0FALSE0TRUE418FALSE0FALSE0FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope road from Site #121 to #122 by sidecasting berm.(small section of through-cut. 2. Install new 18" DRC 50' long approx. 150' up from DRC, at edge of through-cut.
121-Mill Creek02-161HolmesHolmes0RL,ST9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle25TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0423018OOR0000-0FALSEFALSEFALSE0-000-000000000HFALSE--082000008210082771002123077423' of IBD feeds to 18" rusted, crushed inlet. 260' of gully originating on spur road feeds into ditch and creates gully, and outlet erosion. This delivers to class 3 stream below. Future erosion was calculated by estimating future gully erosion. ActH0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE350FALSE0FALSE0TRUE1FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope 350' of road; use berm to fill ditch. 2. Install 1 rolling dip , as shown on map. 3. Replace old DRC with new 18" x 40' long DRC. 4. Obliterate/outslope abandoned roads, see sketch. est. 1 day with dozer or excavator.
120-Mill Creek02-161HolmesHolmes0TK,MM9/22/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle22TRUE-HDFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01019018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0600000610066100218061019' reach length, 18" DRC's located at 520' and 1019'. At 1019' gully at 18" DRC erodes hillslope 80' to class 3 stream. DRC's are in good shape. Berm is small, 1-2' wide 6" tall.L0L0FALSEFALSE-00FALSEFALSE0FALSETRUEFALSEFALSE00FALSE-0FALSE0TRUE1019FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001.Outslope road for 1019';remove berm filling ditch. 2. Install 3 rolling dips, 2 by current DRC's , leave DRC's. 3. Clean CMP (DRC) at 520'.
116-Mill Creek02-161HolmesHolmes0RL,ST9/22/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle23TRUE-IGFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0928018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0600000610067100211007928' reach of road with 2 DRC's. Site # 116 DRC has past erosion with delivery. This is due to extended ditch length. There are several small OBF failures that did not deliver. Cracks along 258' of outer section of road indicate a future slide with poL0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE627FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope and remove berm for a total of 627', see sketch, fill IBD with berm spoil. 2. Retain DRC, and add 1 rolling dip. 3. Place two more dips as shown on sketch.
50-Mill Creek08-156Nash-MillNash-Mill0CN TK9/14/982NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle15TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE06405616OOO0000-0FALSEFALSEFALSE10-000-000000000LFALSE--030000031003000000DRC drains 700' of IBD to Class 3 stream. 3 yds3 past erosion around outlet. Site not flagged due to owners request. Road averages 5-12 % grade, and is insloped with berm.ML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE600FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000Install 3 rolling dips on 640' of left approach. Put spoils in IBD, and outslope. Be sure to leave trees on OBR when removing berm/ outsloping road with hoe. Berm is intermittent and smaller than usual.
111-Mill Creek02-159HolmesHolmes0RL,ST9/22/980RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower25TRUE-IGFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01248018OOO0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--0500000510052100213021248' reach of road with 3 DRC's. DRC at site #111 has 15' shotgun outlet with minor amounts of outlet erosion, that delivered to a Class 1 50' below. Road grade varies from 0-5% on this reach. There is a small berm at OBR along length of reach. severL0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0TRUE500TRUE750FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0TRUE00FALSEFALSEFALSEFALSE000000000000000001. Outslope road, use berm to fill ditch, for 750' where not cleaning ditches for springs. 2. Retain DRC's and improve ditch (est. 500') to capture cutbank seeps and springs, adjacent to DRC's.
52-Mill Creek08-154Nash-MillNash-Mill0MM ST9/14/980NativeFALSE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle20TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE015019018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000Multiple DRC's channel flow to CMP which drains onto large flat below the road. Not a problem. Any diversion will flow across road and deliver to large flat bench below. Not flagged due to request of property owner. Reference sign = small plate with 1L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0TRUE240FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000sidecast berm 240'.
29-Mill Creek08-154Nash-MillNash-Mill0MM,BL9/10/980RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle30TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0096015OOO0000-0FALSEFALSEFALSE0-000-000000000HMFALSE--0000000125100125000000DRC- drains 960' of road from intersection. Active gulling is delivering to Stump Hollow, creating larger gully in flat.(see sketch). Road is wide here and has multiple gullies coming from unstable area above cutbank. Large gullies also parallel alongML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE400TRUE560FALSE0TRUE5FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Outslope road for 960' from DRC to junction. -sidecast 560' -fill ditch 400' -outsloping road will require removal and relocation of fence along OBR. 2- Install 5 rolling dips
105-Mill Creek02-159HolmesHolmes0MM,TK9/22/980RockedTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle27TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01560018OOO-000-0FALSEFALSEFALSE0-000-000000000LFALSE--00000000000000001556 of left ditch drains to 3 18" DRC's. No erosion delivers below CMP, telephone lines for entire distance. Road gradient 3-10%. Cutbanks appear very dry.L0L0FALSEFALSE-00FALSEFALSE0FALSETRUEFALSEFALSE00FALSE-0FALSE0FALSE0TRUE820FALSE0TRUE4FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000002001. Install 1 rolling dip at 293' from road junction. 2. Install 3 rolling dips on lower 1116' of road, not connected to ditch. 3. Outslope road, sidecasting berm between 440' to 1260', =820'. 4. Clean an retain 3 DRC's to drain ditch water.
55-Mill Creek08-154Nash-MillNash-Mill0TK MM9/14/983NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle16TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01951508OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--03000003000000008" steel DRC with 195' left and 150' right road drainage. Minor erosion below shotgun outlet. No delivery. 8" DRC has low potential to plug and road grade leading to DRC are less than 4%.L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE340FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000Outslope road by removing berm and filling ditch.
104-Mill Creek02-161HolmesHolmes0MM,TK9/22/980RockedTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle30TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0153624018OOO0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--10190000029002201160001536' of left ditch/road surface and 240' of right ditch drains to 18" DRC with no delivery. One large gully heads off road (see sketch), but delivery unlikely. Wide road here, slightly outsloped, with small ditch and berm. Sidecasting is OK, but needML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE740FALSE0FALSE0TRUE4TRUE1037FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001. Outslope road from site#103 to #104, except for 417' of ridge flat (remove berm only). 2. Install 4 rolling dips to left and 1 above break, 1 in ridge area, and 2 below driveway 1800, before DRC. 3. Outslope right approach for 240'. 4. On steep
98-Mill Creek08-154Nash-MillNash-Mill-MM,TK9/21/983RockedTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle22TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0720018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--1330000016001300000720' of left ditch drains to 18" steel DRC. Road grade is between 10-15%. Minor ditch, and outlet erosion, does not deliver. Two small swales in reach, neither have channel characteristics above or below road, so rolling dips will handle any flow fromL0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001. install 3 rolling dips up from DRC, including one above gate. Install 1 rolling dip below DRC. 2. Leave DRC as is.
95-Mill Creek08-154Nash Mill 1Scott Holmstead0MM,RL9/21/982NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertUpper20TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0364194012OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--000000000000000012" DRC drains 364' of left ditch and 1940' of right ditch, and road surface. Average road grade is 8%, with 20' width. No delivery from DRC, except possibly to pond. 12" seems OK.L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0TRUE100TRUE1000FALSE0TRUE100TRUE4FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000No treatment for first 1000' of road. 1. Install 3 rolling dips up road to right, and one to left 150', leading to old drainage ditch. 2. Clean ditch for 100' to left of DRC, and enhance insloped road for the same 100' section.
61-Mill Creek08-154Nash Mill 1Main Road0TK CN9/15/9820RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower35TRUE-IGFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE02300018OOO0000-0FALSEFALSEFALSE0-000-000000000MFALSE--36333000003691003699110051300912300' of left ditch drain into 18" DRC. Gully below outlet (5x6x300)=333 yds3. Future erosion = 5x1x300 gully at outlet + 1x.5x1950 road & ditch erosion. Average road grade in reach is 4 to 8%.M0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0TRUE30TRUE765FALSE0FALSE0TRUE8TRUE1535FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000Outslope upper 640' and lower 125' of left approach. Sidecast berm for remaining 1534'. Install 8 rolling dips. Clear IBD for 30', 1240' from site on left approach through cutbank slide. Check IBD through reach where not outsloping.
66-Mill Creek02-159Nash-MillNash-Mill0MM,ST9/15/982RockedTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle35TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0330012RRR0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--0000000000000000Swale has been blocked to for pond, with overflow pipe to right. Pipe is 12" old and rusted, with 2' drop inlet. No channel found in swale below, and minor gully from outlet does not deliver. Pipe should be moved to swale, and old DRC is in bad conditioML0L0FALSEFALSE-00FALSETRUE20FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0TRUE1FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE00000000000000020Install new 18" CMP up road 60' from old 12" DRC. Block off ditch to old DRC. Place new CMP at appropriate depth to drain pond with out overflow. Add 20' downspout. Install 1 rolling dip between new CMP and private road - see sketch.
89-Mill Creek02-161HolmesHolmes0CN,ST9/17/980RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle40TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE02449020OOO0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--015000001510015000000Gully below DRC outlet delivers 15 yds3 to headwaters of class 3 stream. 400' of ditch drains into DRC from left.28' downspout on DRC is approximately 10' too short and is the primary reason for gully. E.P. moderate since gully will continue. DRC's atML0L0FALSEFALSE-00FALSETRUE10FALSETRUEFALSEFALSE00FALSE-0FALSE0TRUE1000FALSE0FALSE0TRUE5TRUE1000FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000001201. Add 10' downspout to existing 28' downspout. 2. Enlarge inlet area. 3. Install 5 rolling dips over 2429' of road on left approach to Site, connect to IBD. 4.Outslope approximately 1000' of road where possible.
69-Mill Creek02-159Nash-MillNash-Mill0MM,9/16/9834RockedTRUE0FALSETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertLower35TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0029018OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000290' of road drains to Highway 128 drainage system, through 18" DRC. Road is slightly through-cut, and IBD is down to bedrock. No treatment needed. Some delivery may happen through 128 drains, but it is negligible. May want to de-water private road.-0-0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSETRUE00000000000000000No Treatment
70-Mill Creek08-154Hungry HollowHungry Hollow0CN,ST9/16/987NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle28TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0195030012OOO0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--361500000511005150100000502250' of IBD drains to 12" DRC, 2 x 2 x at least 100' gully at outlet, assumed delivery. Rills along road for most of it's length. Cutbanks mainly low and exhibit few springs. Most of road grades less than 12%, and lots of gentle road reaches for rollML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE1700FALSE0FALSE0TRUE7FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE00000000000000320Outslope 1700' of road, intermittently-see sketch. Install 7 rolling dips. Replace old 12" DRC around location B, with new 18" DRC, place outlet so it does not shotgun.
71-Mill Creek08-154Hungry HollowHungry Hollow0TK ,MM9/16/9819NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle25TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE061013012POO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000720' of road at 12 % grade leads to 12" DRC. DRC is plugged. A gully from outlet, erodes fillslope and deposits on skid. No delivery. 133' from right leads to 12" DRC.L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE720FALSE0FALSE0TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000Outslope 610' left of 12" DRC, and 130 to right. Berm is intermittent, some large redwoods (don't remove), road width 25'. Install 3 rolling dips, one at DRC - remove DRC.
73-Mill Creek-8-154Hungry HollowHungry Hollow0CN,ST9/16/982NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertMiddle27TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE010307015OOO0000-0FALSEFALSEFALSE0-000-000000000MFALSE--097000009710097501000005015" DR-CMP fed by 450' of IBD from left and 70' of IBD from right. DR-cmp flows onto flat meadow. 100' to start of (5X3X175) gully which delivers to class 3 stream below. At beginning of reach ditches flow on both sides of road, with right ditch drainiM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE500FALSE0FALSE0TRUE4FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE0000000000-0000001. Install 2 rolling dips on upper 600' of reach to break up ditch flow above large flats. 2. Replace 15" DR-cmp with rolling dip. ensuring dip captures all ditch flow. 3. Install 1 rolling dip between big flats and DR-cmp to lessen scour in ditch a
84-Mill Creek02-233Hungry HollowHungry Hollow Mile 20TK,MM9/17/987NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower20TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE05901308OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000161001651000005Gullies from road above scour hillslope to lower road and exit road via road surface, and 8" plastic pipe. Water ponding on road surface at pipe. Road width 12-35' wide, average 20'. Road gradient 2-7%.ML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0TRUE100TRUE590FALSE0TRUE100TRUE2FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE000000000000000001. Replace old 8" pipe with new 18" DRC. 2. Inslope road and clean ditch 100' of right approach, connect to gully. Install 2 rolling dips on left approach. 3. Outslope 590' of left approach.
81.0999984741211-Mill Creek02-233Hungry HollowHungry Hollow Mile 20CN, ST9/17/981NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertStreamside18TRUE-STFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE00012POO0000-0FALSEFALSEFALSE0H000-000000000HFALSE--000015001520315200003Seep feeds into 12" plugged DRC. Horsetail and other water type plants above seep on hillslope. Flow emerges 10' back from top of cutbank, then goes subsurface, reemerging in the face of cutbank. 12" DRC is plugged with fine sediment, and seep is curreML0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE--FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0TRUE1FALSE00FALSEFALSEFALSEFALSE000000000000000001. Replace old 12" DRC, with oversized 24" DRC, to avoid plugging. 30' long.
26-Mill Creek08-154Nash-MillNash-Mill0MM,BL9/10/987RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower26TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE01125012---0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--0200000020100206100224061125' of road surface runoff flows down IBD into 12" DRC at road junction between main road and private road. Road grade is approx. 6-10% throughout reach. Water exits DRC and gullies down fillslope and delivers. Most of the flow through DRC comes fromHM0L0TRUEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE500TRUE600FALSE0TRUE6FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE003033000000001001- Install 6 rolling dips 2- Excavate fill failure at DRC outboard fill 3yd3 (6*1*12)
17-Mill Creek02-235Nash-MillNash-Mill0BL,NC9/10/981NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertUpper28TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0350334024---0000-0FALSEFALSEFALSE0-000-000000000MFALSE--18660000002461002460000003340' of road surface runoff from the right and 350' of road surface runoff from the left exit IBD at 24" DRC. Gullying begins at outlet and extends 400' to Class 2 stream below. Road grade from left approx. 4%, grade from right 6%. 350' up road from rHM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE1800TRUE1700FALSE0TRUE16FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 16 rolling dips along 3340' of road at 300' intervals along entire length of right approach - place dips in natural swales where possible - install one rolling dip 200' up left approaching road.
15-Mill Creek02-235Nash-MillNash-Mill0MM,TK9/9/9811NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertUpper24TRUE-HDFALSEFALSEFALSEFALSEFALSEFALSEFALSE---FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE035095018OOO0000-0FALSEFALSEFALSE0-000-000000000MFALSE--12138194000034437128890304200Old road, approx. 200' above main road, failed and torrented down to main road. Most sediment deposited on road and above. Some flow and sediment went down road to left 660' to 18" DRC in next swale, where it eventually delivered, about 5% to a class 3M0L0FALSEFALSE-00FALSETRUE40FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE950FALSE0FALSE0TRUE5FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000301- Install a total of 5 rolling dips. -Install rolling dip to left of torrent track. 3- Add 40' downspout to 18" DRC. 4- Outslope 950'- use bem to fill ditch
13-Mill Creek08-154Nash-MillNash-Mill0TK,BL9/9/988NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertMiddle26TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0325305015OOO0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000Maintenance sheet for 2950' of road lead to 18" DRC. DRC gullies down skidded draw for 800' to a 15" DRC. No stream below 15" DRC. Not a site. Road grade average 5-8%, much of road is flat and has smaller berms than normal.L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE2500FALSE-FALSE0TRUE15FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 15 rolling dips. 2- Outslope road for 2500' 3- Remove berm and fill ditch.
9-Mill Creek08-154Nash-MillNash-Mill0BL,TK9/9/9824RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertLower20TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0265000---0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0220000022510000002650' of road surface run off flows down IBD, through a 18" DRC, causing 150' of gullying that delivers approx. 5% to Mill Creek (class 1 stream). Road surface run off needs to be broken up throughout 2650' stretch. Eroded ditch material deposits beforeM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE2300FALSE-FALSE0FALSE10TRUE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install rolling dips every 300' throughout 2650' stretch starting from site #8 - 10 dips, remove berm mostly pulling back and filling ditch, sidecasting berm in most locatons.
155-Mill Creek02-161BatesBates0RL,MM9/24/980NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertUpper15TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0670018PPO0000-0FALSEFALSEFALSE0H000L000000000LFALSE--0000000000000000Plugged 18" DR-CMP needs to be cleaned out. 670' of left road approach is mildly outsloped with no IBD. A small berm exists on several short stretches. DR-CMP is crushed and plugged at inlet.L0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE400FALSE0FALSE0TRUE2FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Enhance already mildly outsloped left approach up road past house driveway for 250' 2. Add one rolling dip approx. 70' up road past driveway. 3. Clean crushed plugged 18" DR-CMP 4. Sidecast berm on left reach.
20-Mill Creek02-235Nash-MillNash-Mill0BL,TK9/10/9811RockedTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEDitch relief culvertUpper-TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0048012---0000-0FALSEFALSEFALSE0-000-000000000LFALSE--0000000000000000480' of crowned road surface runoff flows to 12" DRC. No delivery, maintenance site. Road grade 14% into road junction at DRC. Because road grade is steep and DRC is functioning without delivery, no need for dip at road junction. Rolling dip from siteM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0TRUE480FALSE0TRUE2FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 1 rolling dip at bend in road approx. 200' up from DRC.
2-Mill Creek08-154Nash Mill 1Big Meadow0MM,BL9/9/9818NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEDitch relief culvertUpper12TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE006900---0000-0FALSEFALSEFALSE0-000-000000000HFALSE--1111900010015597150301004210030Road surface runoff from Site #1 gullies along IBR around road bend, through swale, enters 18" DRC and delivers to a ephemeral draw (total length 654'). The entire length of road has a large berm along OBR which is keeping all surface runoff on road surfH0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE500FALSE-FALSE0TRUE4FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install rolling dip 150' down road from site #1 before bend in road. 2- Outslope road along 300' of road through swale, (150' on either side of swale). 3- Install rolling dips 100' before swale, at swale, and 100' below swale 50' above existing DR
6-Mill Creek08-154Nash Mill 1Big Meadow0NC,TK9/9/9818RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyUpper23TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE048000---0000-0FALSEFALSEFALSE0-000-000000000HMFALSE--9110000020100201310010.568013480' of ditch feeds gully (1.5*1*200)= 11yd3. Gully reaches stream below switchback. Ditch erosion (1*.5*480)= 9yd3 Road is steep averaging 16%.M0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE400FALSE-FALSE0TRUE1FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000Install rolling dip 150'-200' to left of switchback.
8-Mill Creek08-154Nash-MillNash-Mill0NC,TK9/9/9820NativeTRUE0TRUETRUEFALSEFALSETRUEFALSEFALSETRUEGullyMiddle20TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE090000---0000-0FALSEFALSEFALSE0-000-000000000MFALSE--019000001900000000Road grade ranges 5%- 10% and averages 20' width. 900' of road surface flow and ditch flow exit road via ditch causing erosion for 500' to a private road. Here they have installed an 18" DRC. No observation were made beyond this point. DRC is unnecessM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE800FALSE-FALSE0TRUE4FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 3 rolling dips for 800'. 2- Remove berm/ fill ditch. 3- Outslope road.
3-Mill Creek08-154Nash Mill 1Big Meadow0TK,NC9/9/9815NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyUpper12TRUE-BISFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE009550---0000-0FALSEFALSEFALSE0-000-000000000MTRUE--081500000815100815204100511100204Road surface runoff for 955' exits road via inboard ditch causing large gully to Mill Creek (5*4*1100)= 815yd3. Distance scaled off of photo. Road gradient leading to gully 7% for 955'. Prescription will disconnect excess water in ditch beyond this sitM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE800FALSE-FALSE0TRUE6FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 6 rolling dips for 955'. 2- Remove berm outslope road and fill ditch for 800'.
64-Mill Creek02-159Nash Mill 1Main Road0MM,CN,ST9/15/985RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyMiddle35TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE085000---0000-0FALSEFALSEFALSE0-000-000000000MFALSE--161960000021210212000000Gully from 850' IBD going under cattle guard (5X5X200) = 185 yds3 past erosion. Gully at OBR 650' from start of site, that drains 830' of OBR ditch. Erosion potential and immediacy moderate because most of the erosion has all ready occurred. The 5 x 5M0L0FALSEFALSE-00FALSETRUE40FALSEFALSETRUEFALSE2460FALSE-0FALSE0TRUE650FALSE0TRUE200TRUE3FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE0015515500007055000050NOTE: High voltage line at OBR. Install 24" CMP in axis of swale with 40' downspout to near base of fill. Define channel to CMP inlet. Outslope road using berm material for first 650' (upper reach). Install 3 rolling dips. Improve inslope and maintai
40-Mill Creek08-156Nash Mill 1Little Mill Creek0TK,MM9/11/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyMiddle-TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE001000---0000-0FALSEFALSEFALSE0-000-000000000MLFALSE--2000000210022100100.100000001490116402Ephemeral gully flows off 10' cutbank onto inner gorge road adjacent to Lil' Mill Creek. Road surface erosion is minimal but extends for 40' and exits road over fillslope. Currently, dully is dry and shows signs of activity only in record intensities.L0L0TRUEFALSEArmored fill320FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0TRUE300FALSE0FALSE00FALSEFALSEFALSEFALSE0025025250080221000001- Install 3' deep armored sill at mouth of gully plus haul 10yd3 of coarse rock .5 to 1' diameter to armor axis of dip. Build sill which doesn't shrink Little Mill cross sectional area. Roack road through crossing & on approaches with road rock.
11-Mill Creek08-154Nash Mill 1Big Meadow0TK,BL9/9/9819NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyUpper16TRUE-OtherFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0014300---0000-0FALSEFALSEFALSE0-000-000000000MFALSE--118180000013680109608011160047Road and ditch erosion for 1600' exits road via waterbar. Slope gullies for 200' to headwall swale of a class 3 stream. Road at 5-12% gradient. Along 1600' water exits road but does not deliver. At 500' plugged culvert in a driveway acts as a ditch.M0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE1100FALSE-FALSE0TRUE8FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Install 8 rolling dips. 2- Remove berm at intermittent locations - fill ditch. 3- outslope road. 4- Maintain culvert at driveway crossing.
136-Mill Creek02-161BatesBates0MM.TK9/23/980NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyMiddle18TRUE-STFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSETRUEFALSEFALSEFALSEFALSE024000---0000-0FALSEFALSEFALSE0-4520.5ML000000000HMFALSE--090000091009910031809Gully from bend in road above, should be treated above with rolling dips and outsloping (see site #140). Gully continues off OBF to Class 3 stream. 295' of road/ ditch from left drains to this site, and goes across road at low point. Road is almost flaM0L0TRUEFALSEArmored fill430FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE240FALSE0FALSE0TRUE1FALSE0FALSE0TRUE760FALSE0FALSE00FALSEFALSEFALSEFALSE0010010100075221000001. Enhance outsloping. Excavate some OBF. 2. Install one rolling dip at low point 150' up left from site. 3. Install a broad armored rolling dip through road at gullies with low sill wall. Estimate 30' wide by 3' high * 1' diameter rock = 10 yds of
28-Mill Creek08-154Nash-MillNash-Mill0MM,BL9/10/9821RockedTRUE0FALSETRUEFALSEFALSETRUEFALSEFALSEFALSEGullyLower-TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0000---0000-0FALSEFALSEFALSE0-000-000000000HMFALSE--00000004100483203032517Gully coming down old skid roads, delivers through culvert to site #27 crossing. Origin of gully was not checked because its private property. Cutbank will continue to fail due to gully above, ask owners about treatment above road. (30*3*20)= 67yd3 wit-0-0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00000000000000000-
45-Mill Creek08-156Nash Mill 1Little Mill Creek0CN,TK9/14/9813NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyMiddle-TRUE-SWFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE022500---0000-0FALSEFALSEFALSE0-000-000000000MFALSE--0900000910099100112509Fill crossing over ephemeral draw. Small gully scours through fillslope and hillslope below. 9yd3 past erosion. Gully is a result of concentrated flow on the road surface from left approach. Site was not treated as a stream crossing for watercourse iM0L0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0TRUE225FALSE0FALSE0TRUE2FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE000000000000000001- Outslope 250' of left approach. 2- Install rolling dip at swale being sure to capture flow from ephemeral draw as well as the road surface
25-Mill Creek08-154Nash-MillNash-Mill0NC9/10/980RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSEGullyLower35TRUE-SSFALSEFALSEFALSEFALSEFALSEFALSEFALSE-00FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0000---0000-0FALSEFALSEFALSE0-000-000000000HMFALSE--38000001110011710020.5357Gully from accumulated ditch and road runoff runs over OBF to Stump Hollow below. Gully over OBF is slowly headcutting up ditch toward road. Gully fed by a portion of 990' of road and ditch. Site #26 (DRC w/gully) treats that 990' and will greatly dewaHM0L0TRUEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE-FALSE0FALSE0TRUE175FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE006066000000000001- Lay back oversteepened banks (10*2*4) in two locations equaling 6yd3. - spoil to right on OBF - backhoe 1 hour maximum. Road drainage work on site #26 must be done to dewater this site. 2- Sidecast 175' of berm.
4-Mill Creek08-154Nash Mill 1Big Meadow0MM,BL9/9/9815RockedTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSELandslideUpper17TRUE-HDTRUEFALSEFALSEFALSEFALSEFALSEFALSEConvergent6570TRUETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE045000---0000-0FALSEFALSEFALSE0-000-000000000HTRUE2000-5000-00780000782016285210014051102852165' with scarps along OBR, with 2-3' vertical scarps in headwall swale. Some past failure below, did not deliver much = 20%. Stream appears to start shortly below. 1380' of road drainage to site, some of which is treated in site #3. Site has the poteH0M0TRUEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0TRUE200FALSE0FALSE-FALSE0TRUE1TRUE250TRUE250FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00240602406240600902728000000Excavate from start to end (165*5*70)=2139yd3 Ramp down from right to remove entire lobe. Another lobe is overhanging on right side of swale. (60*3*40)=267yd3 Total volume excavated 2406yd3. Install one rolling dip 220' down road from site
63-Mill Creek08-154Nash Mill 1Main Road0MM CN9/15/987RockedTRUE0FALSETRUEFALSEFALSETRUEFALSEFALSEFALSELandslideMiddle35TRUE-HDFALSEFALSEFALSETRUEFALSEFALSEFALSEConvergent18240FALSETRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0000---0000-0FALSEFALSEFALSE0-000-000000000HTRUE2000-5000-0000000000518515400570778Large deep seated feature, in headwall swale. Not much can be done for treatment, except keep water from site.(see site #62). Delivery will be low, because slide will deposit on large (240') flat at 18%, before reaching a class 3 stream. Slide seems to-0-0FALSEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSETRUE00000000000000000See site # 62.
29-Mill Creek08-154Nash-MillNash-Mill0TK,NC9/10/9814NativeTRUE0TRUETRUEFALSEFALSETRUETRUEFALSEFALSELandslideMiddle-TRUE-SSFALSEFALSETRUEFALSEFALSEFALSEFALSEDivergent850TRUEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE0000---0000-0FALSEFALSEFALSE0-000-000000000LFALSE--000110002225126100111706Possible deep seated feature above road/ or upper road diversions. Cutbank slide 222yd3 5% delivery 11yd3. Saturated. Divergent hillslope. 8' cutbank. Blade pushed cutbank slide into creek 11yd3. Berm has gully eroding through bladed material. 1*.5*70L0L0TRUEFALSE-00FALSEFALSE0FALSEFALSEFALSEFALSE00FALSE-0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE0FALSE00FALSEFALSEFALSEFALSE00139013913900100220000001-Excavate fillslope 75*2*25= 139yd3 -use spoil to fill IBD.



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