PMID- 31661454
OWN - NLM
STAT- MEDLINE
DCOM- 20191031
LR  - 20201215
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 80
IP  - 4
DP  - 2019 Aug
TI  - Road deposited sediment: implications for the performance of filter drains 
      servicing strategic trunk roads.
PG  - 747-761
LID - 10.2166/wst.2019.319 [doi]
AB  - This study investigates the contribution of road deposited sediment (RDS) to 
      clogging and the operational lifecycle of highway filter drains (HFDs). RDS 
      samples were collected from nine Scottish trunk roads and fractionated into grain 
      size classes to determine their particle size distributions (PSDs). Results show 
      that RDS PSDs, and the percentage of each grain size fraction, are highly 
      variable. However, despite being collected from different trunk roads, PSD trends 
      are similar, with individual RDS particles ranging in size from <63 mum to >10,000 
      mum. Medium sand, coarse sand, fine gravel and medium gravel make up 84.1% of the 
      total particle mass concentration, with particles >1,000 mum mostly mineral or 
      asphalt. The study also reveals that the dynamic nature of a trunk road catchment 
      dictates that grading envelopes are essentially instantaneous values. These 
      findings indicate that large particles from the road surface contribute to 
      clogging and have the potential to reduce the operational lifecycle of HFDs. The 
      study also demonstrated that assuming a single RDS PSD profile for filter drain 
      asset management purposes is unlikely to be representative of a trunk road 
      catchment profile.
FAU - Mitchell, Ged
AU  - Mitchell G
AD  - BEAR Scotland Limited, BEAR House, Inveralmond Industrial Estate, Inveralmond 
      Road, Perth, Scotland, UK.
FAU - Oduyemi, Kehinde
AU  - Oduyemi K
AD  - School of Applied Sciences, Abertay University, Bell Street, Dundee, Scotland, UK 
      E-mail: j.akunna@abertay.ac.uk.
FAU - Akunna, Joseph
AU  - Akunna J
AD  - School of Applied Sciences, Abertay University, Bell Street, Dundee, Scotland, UK 
      E-mail: j.akunna@abertay.ac.uk.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
SB  - IM
MH  - *Environmental Monitoring
MH  - *Geologic Sediments
MH  - Particle Size
EDAT- 2019/10/30 06:00
MHDA- 2019/11/02 06:00
CRDT- 2019/10/30 06:00
PHST- 2019/10/30 06:00 [entrez]
PHST- 2019/10/30 06:00 [pubmed]
PHST- 2019/11/02 06:00 [medline]
AID - 10.2166/wst.2019.319 [doi]
PST - ppublish
SO  - Water Sci Technol. 2019 Aug;80(4):747-761. doi: 10.2166/wst.2019.319.