Culvert Information for Cynon Valley
Critical Drainage “Hotspots”
Rhondda Cynon Taf CBC provided a report “Arrangements during Flood Incidents” (November
2007) which identified 790 sites through the Rhondda, Cynon and Taf areas. This detailed the culverts throughout the area and identified the location, owner and district within which these were located. Furthermore, ‘priority culverts’ were identified which are culverts with known blockage and / or flooding issues and therefore required regular maintenance to ensure that they operated as efficiently as possible.
The list was transferred into an electronic spreadsheet and from this the priority culverts extracted. Because the precise location of the priority culverts was not known, the culverts were groped into specific towns or villages, and within these the number of priority culverts identified. In addition to the priority culverts identified above Rhonda Cynon Taf have identified further locations of culverts, which are considered to pose the greatest flood risk in the event of blockage.
These have also been identified within GIS.
Below taken from Rhondda Cynon Taf County Borough Council
Strategic Flood Consequence Assessment
Culvert Assessment Numbers
Total No of Culverts 786
Priority Culverts 511
RCT Owned Priority Culverts 172
Privately owned Priority Culverts 317
Unidentified Priory Culverts 22
Critical Drainage “Hotspots”
• There are approximately 790 culverted watercourses and / or drainage channels within the study area.
• 511 of the culverts have been classified as “Priority Culverts” by Rhondda Cynon Taf
CBC;
• 317 of the “priority culverts” have been identified as being privately owned;
• 172 of the “priority culverts” are owned and or maintained by Rhondda Cynon Taf CBC;
• No ownership could be identified for 22 of the “priority culverts”
• 48 communities / towns are potentially at risk of flooding from the critical drainage issues
Identified.
Increased likelihood of blockages
Compared with an open watercourse there is an increased risk of blockage once a culvert is installed. If the blockage is within the culvert, there is much greater difficulty in removing it.
For these reasons many culverts have screens installed at their upstream end. These screens themselves are often prone to blockage and require frequent clearance and robust emergency procedures to ensure that they do not in themselves cause flooding.
LOCATION CULVERTS IN CYNON VALLEY
ABERAMAN
ABERAMAN BETWEEN HILLBROOK CL/RHOS DYFED RCTC RESPONSIBLE
ABERAMAN GWAWR BROOK PRIORITY CULVERT RCTC RESPONSIBLE
ABERAMAN JUNC. CARDIFF RD I GWAWR ST PRIORITY CULVERT RCTC RESPONSIBLE
ABERAMAN MAESYFFYNON LANE PRIVATE CULVERT
ABERAMAN OPP.21 CYNON ST YES RCTC RESPONSIBLE
ABERAMAN RDV BETWEEN BROOK ST I GREENHILL RCTC RESPONSIBLE
ABERAMAN REAR LANE DANYDERI YES RCTC RESPONSIBLE
ABERAMAN REAR OF FISH SHOP WAYNES COTTAGE RCTC RESPONSIBLE
ABERAMAN RIVER DARE BETWEEN CULVERT AND BRIDGE RCTC RESPONSIBLE
ABERAMAN TONLLWYD HOUSES RCTC RESPONSIBLE
10 IN ABERAMAN
ABERCWMBOI
ABERCWMBOI BRONALLT TER RCTC RESPONSIBLE
ABERCWMBOI MOSTYNST RCTC RESPONSIBLE
ABERCWMBOI NORTH VIEW TER RCTC RESPONSIBLE
ABERCWMBOI ON ROAD TO PIT COTTAGE 3 NO. RCTC RESPONSIBLE
ABERCWMBOI OPP BRONALLY RCTC RESPONSIBLE
ABERCWMBOI OPP OLD ENT TO PHURNACITE WORKS RCTC RESPONSIBLE
ABERCWMBOI PAST PIT COTTAGE RCTC RESPONSIBLE
ABERCWMBOI REAR 85 JENKINS ST RCTC RESPONSIBLE
ABERCWMBOI REAR BEECH/GRAIG TERR RCTC RESPONSIBLE
ABERCWMBOI REAR BRITISH LEGION CLUB RCTC RESPONSIBLE
ABERCWMBOI REAR KWIKSAVE RCTC RESPONSIBLE
ABERCWMBOI REAR MAPLE TERR RCTC RESPONSIBLE
ABERCWMBOI SIO GLENBOI COT. ABERDARE RD RCTC RESPONSIBLE
13 IN ABERCWMBOI
ABERCYNON
ABERCYNON ANN ST C/PIT PRIORITY CULVERT RCTC RESPONSIBLE
ABERCYNON BOTTOM OF CARDIFF RD RCTC RESPONSIBLE
ABERCYNON CEMETARY RD PRIVATE CULVERT
ABERCYNON FARM WOOD IDRAI PRIORITY CULVERT RCTC RESPONSIBLE
ABERCYNON LOCK ST RCTC RESPONSIBLE
ABERCYNON NANTY FEDW C/PIT RCTC RESPONSIBLE
ABERCYNON REAR 168 BRYNTIR/ON RCTC RESPONSIBLE
ABERCYNON REAR OF CAEMAEN ST RCTC RESPONSIBLE
ABERCYNON REAR OF MARTINS TER DITCH RCTC RESPONSIBLE
ABERCYNON SALISBURY RD PRIVATE CULVERT
ABERCYNON TOP OF SELINA RD PRIORITY CULVERT RCTC RESPONSIBLE
11 IN ABERCYNON
ABERDARE
ABERDARE BOTT. CWMDARE HILL HIRWAUN RD PRIORITY CULVERT RCTC RESPONSIBLE
ABERDARE GADLYS DEPOT REAR HALL ST RCTC RESPONSIBLE
ABERDARE NEAR 1 CHURCH ROW TRECYNON RCTC RESPONSIBLE
ABERDARE NEAR 7 THE GROVE PRIORITY CULVERT RCTC RESPONSIBLE
4 IN ABERDARE
CWMAMAN
CWMAMAN BEDLWYN TIP CWMAMAN BEDLWYNTIP RCTC RESPONSIBLE
CWMAMAN FFORCHAMAN/FFORCHNEOL PRIORITY CULVERT RCTC RESPONSIBLE
CWMAMAN PWLLFA PL RCTC RESPONSIBLE
CWMAMAN REAR 33 KINGSBURY PL RCTC RESPONSIBLE
CWMAMAN WORDSWORTH ST PRIORITY CULVERT RCTC RESPONSIBLE
5 IN CWMAMAN
CWMBACH
CWMBACH 49/50 CENARTH DR RCTC RESPONSIBLE
CWMBACH BLAENANTY GROES RD RCTC RESPONSIBLE
CWMBACH BRYNHIR RCTC RESPONSIBLE
CWMBACH CEFNPENNAR RD RCTC RESPONSIBLE
CWMBACH GREENFIELD REAR MAESHYFRYD SCHOOL RCTC RESPONSIBLE
CWMBACH GULF GARAGE CANAL RD RCTC RESPONSIBLE
CWMBACH JUNC TY DRAW RD/CWMBACH RD RCTC RESPONSIBLE
CWMBACH LLETYSHENKIN FARM OFF BRYNGOLWG RCTC RESPONSIBLE
CWMBACH NR ENT. PLASDRAW CWMBACH RD RCTC RESPONSIBLE
CWMBACH OLD INCLINE REAR FAIRFIELD RCTC RESPONSIBLE
CWMBACH REAR 25 PANTYCERDIN RCTC RESPONSIBLE
CWMBACH REAR EBENEZER CH TIRFOUNDER RD RCTC RESPONSIBLE
CWMBACH ROSE ROW END TIRFOUNDER RCTC RESPONSIBLE
CWMBACH ROSERIES BEND RCTC RESPONSIBLE
CWMBACH ROSERIES BENDS RIGHT OF WAY RCTC RESPONSIBLE
CWMBACH S/O CROWN INN CROWN ROW YES PRIORITY CULVERT RCTC RESPONSIBLE
CWMBACH TY DRAW RD PLASDRAW RCTC RESPONSIBLE
CWMBACH WELL PLACE REARGLYN OWENS PRIORITY CULVERT RCTC RESPONSIBLE
CWMBACH WERFA RCTC RESPONSIBLE
14 IN CWMBACH
HIRWAUN
HIRWAUN A4059 PENYWAUN RlABOUT RCTC RESPONSIBLE
HIRWAUN BOTTOM BWLLFA RD CWMDARE RCTC RESPONSIBLE
HIRWAUN CHERRY DR CWMDARE RCTC RESPONSIBLE
HIRWAUN ENT GREENWOOD DR SWANSEA RD RCTC RESPONSIBLE
HIRWAUN ENT TO COAL YARD RHIGOS RD RCTC RESPONSIBLE
HIRWAUN HALF WAY DOWN GLYNNEATH BANK RCTC RESPONSIBLE
HIRWAUN NEAR 14 JOHNS LANE RCTC RESPONSIBLE
HIRWAUN NEAR CAPEL CANA PENYWAUN RCTC RESPONSIBLE
HIRWAUN PAST CATTLE GRID RHIGOS RD RCTC RESPONSIBLE
HIRWAUN REAR 51 GLAN RD GAOLYS RCTC RESPONSIBLE
HIRWAUN REAR L1MESLADE CL RCTC RESPONSIBLE
HIRWAUN RHIGOS RD NR ENT TO IND EST RCTC RESPONSIBLE
HIRWAUN SIO 31 SWANSEA RD RCTC RESPONSIBLE
HIRWAUN SIO 75 GLAN RD GAOLYS RCTC RESPONSIBLE
HIRWAUN SWANSEARD RCTC RESPONSIBLE
HIRWAUN TOP BWLFFA RD CWMDARE RCTC RESPONSIBLE
HIRWAUN TOP OLD GLYNNEATH BANK RHIGOS RD RCTC RESPONSIBLE
17 IN HIRWAUN
MOUNTAIN ASH
MOUTAINASH REAR LYNDHURST ST RCTC RESPONSIBLE
MOUTAINASH TOP LANE REAR WOODLANDS YES RCTC RESPONSIBLE
MOUTAINASH VICTORIA PARK RCTC RESPONSIBLE
MOUTAINASH ALLAN ST / FFRWDD ST PRIORITY CULVERT RCTC RESPONSIBLE
MOUTAINASH A4059 MOUNTAIN ASH TO ABERCYNON PRIORITY CULVERT RCTC
RESPONSIBLE
MOUTAINASH ACCESS A.B. ELECTRONICS A4059 RCTC RESPONSIBLE
MOUTAINASH ALIENS BUlLDERS YARD PRIORTY CULVERT PRIVATE CULVERT
MOUTAINASH CAMBELL TER RCTC RESPONSIBLE
MOUTAINASH COPPlESTONE/GORSEDD ST RCTC RESPONSIBLE
MOUTAINASH DUFFRYN WOODS PRIORITY CULVERT RCTC RESPONSIBLE
MOUTAINASH ENT TO MOUNTAIN ASH HOSPITAL RCTC RESPONSIBLE
MOUTAINASH FERNHILL RCTC RESPONSIBLE
MOUTAINASH FFOREST RD RCTC RESPONSIBLE
MOUTAINASH GOLF CLUB GROUNDS RCTC RESPONSIBLE
MOUTAINASH GRANVILLE TER / FFRWDD BROOK PRIORITY CULVERT RCTC
RESPONSIBLE
MOUTAINASH GWERNIFOR 100m south No. 35 RCTC RESPONSIBLE
MOUTAINASH NEWTOWN SURFACE WATER SYSTEM RCTC RESPONSIBLE
MOUTAINASH NR MOUNTAIN ASH COMPREHENSIVE RCTC RESPONSIBLE
MOUTAINASH RD BLACKBERRY TERRIC/HOUSE CEFNP RCTC RESPONSIBLE
MOUTAINASH REAR 12 THOMAS ST RCTC RESPONSIBLE
MOUTAINASH REAR 4 EVAST RCTC RESPONSIBLE
MOUTAINASH REAR 75 BRYNIFOR PRIVATE CULVERT
MOUTAINASH REAR 89 BRYNIFOR R PRIORITY CULVERT RCTC RESPONSIBLE
MOUTAINASH REAR CADWAIADR RCTC RESPONSIBLE
24 IN MOUNTAIN ASH
PENRHIWCEIBER
PENRHIWCEIBER GLAMORGAN ST RCTC RESPONSIBLE
PENRHIWCEIBER HARRISST PRIVATE CULVERT
PENRHIWCEIBER JUNC.ABERCYNON RD/GLAMORGAN ST RCTC RESPONSIBLE
PENRHIWCEIBER OSBOURNE TER RCTC RESPONSIBLE
PENRHIWCEIBER PENBRYN COTTAGES C/PIT RCTC RESPONSIBLE
PENRHIWCEIBER REAR MONMOUTH ST RCTC RESPONSIBLE
PENRHIWCEIBER VAUGHANTER RCTC RESPONSIBLE
PENRHIWCEIBER WOODFIELD REAR 90/94 P/CEIBER RD RCTC RESPONSIBLE
8 IN PENRHIWCEIBER
RHIGOS
RHIGOS M061 RHIGOS -TREHERBERT 20 No RCTC RESPONSIBLE
