Contractor Project FORTH REPLACEMENT CROSSING Document title CONSTRUCTION NOISE MONITORING REPORT: JULY 2013 00 14/08/13 First Revision ESE MWN MWN Rev Rev. Date Purpose of revision Made Checked Reviewed Document status FOR REVIEW Made by: Ellie Slee Checked By: Martin Wilson Initials: ESE Initials: MWN Document number Rev REP-00130 00 This document is intellectual property of FCBC Construction JV. Copying, distribution, usage, and information on contents of this are forbidden unless explicitly authorized.
Contents 1. Introduction 2. Noise Monitoring Locations 3. Noise Monitoring Results Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
1 Introduction 1.1 Monitoring of is being undertaken by FCBC during the construction of the new Forth Crossing and the associated road network. This report covers the month of July 2013. The objective of this report is to detail the monitoring that has been undertaken across the site during this period and to present the monitoring results acquired for July 2013. 1.2 Monitoring of has been undertaken in accordance with the Code of Construction Practice (CoCP) and the Noise and Vibration Management Plan (NVMP). Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
2 Noise Monitoring Locations 2.1 During July 2013, was monitored using permanent, continuous noise monitoring devices at the locations listed in Table 1. The majority of the monitors were installed throughout November and December 2011, with additional monitors installed at Scotstoun Park (Arup s Office) and Newton during February 2012 and a further sound level meter installed at Whinny Hill during March 2012. 2.2 At some monitoring locations, the noise monitoring devices are accompanied by associated weather stations. Weather stations are present at Echline Field, Tigh-Na-Grian, Clufflat Brae, Dundas Home Farm, Butlaw Fisheries, Linn Mill and Whinny Hill. 2.3 Various construction works were undertaken across the site during July 2013. The main construction activities undertaken in the locality of each of the noise meters during the period have been listed in Table 1. Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
Table 1: Monitoring Locations Ref. Monitoring Location Crossing or Network M1 Whinny Hill Network M3 Tigh-Na-Grian Crossing M4 North Leg Crossing M6 Port Edgar Crossing M7 M10 M11 Butlaw Fisheries Inchgarvie Lodge Linn Mill Crossing Crossing Network (close proximity to Crossing) Main Construction Activities During July 2013 Band drains at King Malcolm Drive Breaking rock at Castlandhill Road and haulage to Ferrytoll N.B. No evening, night time or daytime construction in vicinity. Works within Central Tower cofferdam North Tower airlifting works North Tower underwater concrete pour Works within Central Tower cofferdam North Tower airlifting works North Tower underwater concrete pour South Tower excavation & airlifting Pier S1 jet grouting works Pier S4 airlifting Pier S5 airlifting & concrete works Pier S6 cleaning and backfilling Works within Central Tower cofferdam South Tower excavation & airlifting Pier S1 jet grouting works Pier S4 airlifting Pier S5 airlifting & concrete works Pier S6 backfilling Society Road embankment works Works within Central Tower cofferdam South Tower excavation & airlifting Pier S1 jet grouting works Pier S4 airlifting Pier S5 airlifting & concrete works Pier S6 backfilling Society Road embankment works South Tower excavation & airlifting Pier S1 jet grouting works Pier S4 airlifting Pier S5 airlifting & concrete works Launch backfilling, blinding concrete for lay down area Abutment curing of main crossing bearing plinths Scaffolding erection for piers Society road embankment works Launch backfilling, blinding concrete for lay down area Abutment curing of main crossing bearing plinths Scaffolding erection for piers Pier trials Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
M13 Clufflat Brae Crossing M14 Springfield Network Society road embankment works Launch backfilling, blinding concrete for lay down area Abutment curing of main crossing bearing plinths Pier trials Launch backfilling, blinding concrete for lay down area Abutment curing of main crossing bearing plinths Pier trials Gyratory structures M15 Echline Field Network M16 Scotstoun Network M17 Dundas Home Farm Network M18 Newton Network No works N.B. No evening, night time or daytime construction in vicinity. Launch backfilling, blinding concrete for lay down area Bulk excavation for mainline N.B. No evening, night time or daytime construction in vicinity. Bus link embankment works including import of fill N.B. No evening, night time or daytime construction in vicinity. Utilities works Embankment works for mainline N.B. No evening, night time or daytime construction in vicinity. Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
3 Noise Monitoring Results 3.1 All noise monitoring results for construction days have been presented in charts using the template provided in the Monitoring Information Note, as available on the project website (http://www.transportscotland.gov.uk/files/documents/projects/forthreplacement/frc_construction_noise_monitoring_information_note 2_.pdf). All charts can be found in the appendices of this report. 3.2 With regard to the noise monitoring results charts, the following should be noted: All locations are considered as either Main Crossing or Network Connections, as set out in Table 1. Main Crossing works are undertaken during the day, evening and night time periods. Network connection works, however, are undertaken during the daytime only. The inclusion of data in the graphs reflects this. Although Linn Mill is considered as a network location, the potential for marine works near the south shore to be heard has been recognised. As a result, evening and night time data has been included for this location although no network connection construction activities have been undertaken during these periods. Noise data for days, evening and nights on which no construction works were conducted have been excluded from the monthly average results presented in the graph. Additionally, no investigations into the L AFmax exceedances during these periods have been made as they would have been caused by non-construction related factors. However, noise results (L Aeq and L AFmax ) for any days, evenings and nights on which no construction works have been conducted have been presented in the graphs in greyed out areas. An average for data has been included on the graphs where applicable; in locations where no works have been undertaken no average is shown. As set out in the CoCP, the assessment time for evening, nights and daytime is 1 hour periods. To present the results for these periods, therefore, the maximum L AFmax (fast time response) and maximum L Aeq within the overall evening/night time period has been taken. It should be noted, therefore, that the average shown for these periods is an average of only the highest L Aeq results. Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
Where noise data is missing for days, evening or nights during which construction works were conducted, this has been indicated. A device error was encountered in July, resulting in loss of data for six days, at Newton. The error was resolved as soon as reasonably practicable. 3.3 Results demonstrate that the monthly average total results for daytime were within the threshold limits for all monitoring locations for July 2013, with the exception of Scotstoun. For the evening and night time periods, all monitoring locations, with the exception of Butlaw Fisheries, were within the threshold limits. With regard to the averages (for applicable monitoring locations), exceedances of the threshold were noted for the daytime and night time average at Butlaw Fisheries. All other locations not listed were found to be within the average threshold for all periods. 3.4 The exceedances at Butlaw are not thought to have been caused by increased s due to construction. The evening average was found to be affected by high s on 4 July which were caused by fireworks. When the impact of the fireworks is removed, the average level drops below the 55 db threshold (53.4dB). The exceedance of the night time average is also considered to be due to non-construction related factors, particularly a period of elevated s between 18 and 24 July, caused by early morning bird calls and waves on the shore. The averages are also not thought to be due to construction works. Though audio is not available for the periods, no construction works were on-going at the time which would have caused the elevated s observed. However, it should also be noted that screening and distance attenuation should be considered as these factors result in a lowering of the s to within the threshold level at the nearest sensitive receptors; attended monitoring has illustrated a drop of at least 5 10 db from Butlaw Fisheries to the nearest sensitive receptors with respect to noise generated around the south shore area of the estuary. Furthermore, it should be noted that all the averages reported for evening, night time and periods, are based only on the highest L Aeq levels for 1 hour periods which can affect the averages. 3.5 The exceedance of the daytime average at Scotstoun is due to increased background s due to the location of the meter directly adjacent to the road. The average for July is consistent with that recorded in previous months. Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
3.6 During July 2013, some exceedances of the maximum noise thresholds also occurred. Each exceedance of the threshold was investigated using triggered audio recordings, records of construction works (i.e. site programmes and diaries and daily marine reports) and analysis of weather station data, where required. A Noise and Vibration Investigative Report (NVIR) spread sheet has been produced detailing the results of the investigation for each exceedance. Where the exceedances are due to construction works, a detailed NVIR has been completed which details the results of the investigation in addition to any additional mitigation measures required. 3.7 Investigations of the exceedances of the maximum thresholds show the majority to have occurred as a result of non-construction related noise, notably due to bird calls, some periods of adverse weather and localised noises at nearby properties. At some locations, notably Scotstoun and Echline, existing traffic noise had an effect on maximum s during the period covered in this report. 3.8 Where an exceedance due to construction works was identified, the works were investigated as soon as practicably reasonable and a detailed NVIR was completed, within which any additional mitigation measures were recognised and subsequently implemented where practicable. 3.9 The daytime L AFmax threshold was exceeded on one occasion. This exceedance was recorded at Dundas and was found to be caused by an excavator loading a truck. This construction related exceedance was investigated and mitigation measures implemented where possible; the relevant NVIR provides more detail with regard to this exceedance. 3.10 A summary of the findings for exceedances occurring at each of the locations can be found in Table 2. All construction related exceedances are detailed in Table 3; further information on related remedial actions is detailed in the relevant NVIR. Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
Table 2: Summary of Exceedances at Monitoring Locations Monitoring Location Butlaw Fisheries Clufflat Brae Inchgarvie Lodge Linn Mill Tigh-Na- Grian Dundas Home Farm Echline Springfield Scotstoun Whinny Hill Summary of Exceedance Details During July the maximum noise threshold was exceeded on 55 occasions (daytime, 15; evening, 10; night time, 30). All exceedances were attributed to a range of non-construction factors, but notably birds and waves. During July the maximum noise threshold was exceeded on 45 occasions (daytime, 10; evening, 12; night time, 23). No exceedances were attributable to construction works. Exceedances were found to be largely due to birds and residents at nearby properties. During July the maximum noise threshold was exceeded on 56 occasions (daytime, 12; evening, 15; night time, 29). No exceedances were found to be due to construction works. However, investigations found residents at the property and birds to be the main contributing factors to the exceedances at this location. During July the maximum noise threshold was exceeded on 58 occasions (daytime, 15; evening, 12; night time, 31). No exceedances were due to works associated, with the majority of exceedances caused by birds and adverse weather. During July the maximum noise threshold was exceeded on 58 occasions (daytime, 19; evening, 12; night time, 27). Exceedances were due to non-construction factors, notably birds. During July the maximum noise threshold was exceeded on 6 occasions. One exceedance attributable to construction works (embankment works in close proximity to meter). Other exceedances were due to a gardening works at the property. During July the maximum noise threshold was exceeded on 26 occasions. No exceedances at this location were due to construction activities. Exceedances were largely attributed to vehicles passing by on the adjacent roads. During July the maximum noise threshold was exceeded on 18 occasions. The exceedances were not caused by construction works at this location. The majority of exceedances were due to local residents. During July the maximum noise threshold was exceeded on 27 occasions. Exceedances were largely attributed to vehicles passing by on the adjacent road. During July the maximum noise threshold was exceeded on 9 occasions. Exceedances were not due to construction activities. A range of factors were found to cause exceedances at this location, including birds, dogs barking, wind and trains/planes. Table 3: Summary of Construction Exceedances at Monitoring Locations Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
Monitor Date Period Description NVIR No. Dundas 15/07/13 Day Embankment works D.D.150713 Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
APPENDIX A Forth Crossing Bridge Constructors - A Joint Venture of Hochtief Solutions AG, American Bridge International, Dragados, S.A. and Galliford Try Infrastructure Limited (Trading as Morrison Construction)
(B.D.140713) (B.D.070713) (B.D.210713) (B.D.280713) (B.D.080713) (B.D.090713) (B.D.100713) (B.D.120713) (B.D.130713) (B.D.180713) (B.D.190713) (B.D.220713) (B.D.260713) (B.D.030713) (B.D.160713) Measured Daytime Noise at Butlaw Fisheries Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(B.E.030713) (B.E.070713) (B.E.080713) (B.E.100713) (B.E.130713) (B.E.290713) (B.E.230713) (B.E.250713) (B.E.040713) (B.E.200713) Measured Evening Noise at Butlaw Fisheries Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(B.N.190713) (B.N.260713) (B.N.270713) (B.N.290713) (B.N.010713) (B.N.020713) (B.N.030713) (B.N.050713) (B.N.060713) (B.N.080713) (B.N.100713) (B.N.120713) (B.N.130713) (B.N.140713) (B.N.150713) (B.N.210713) (B.N.220713) (B.N.230713) (B.N.280713) (B.N.300713) (B.N.070713) (B.N.090713) (B.N.110713) (B.N.160713) (B.N.200713) (B.N.250713) (B.N.310713) (B.N.170713) (B.N.180713) (B.N.240713) Measured Night time Noise at Butlaw Fisheries 110.0 Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(C.D.210713) (C.D.020713) (C.D.040713) (C.D.070713) (C.D.090713) (C.D.140713) (C.D.180713) (C.D.230713) (C.D.270713) (C.D.300713) Measured Daytime Noise at Clufflat Brae 105 100 95 90 85 80 Threshold 75 70 65 60 55 50 45 40 35 30 Total daily noise (no Average (n) = Investigation Report Number
(C.E.010713) (C.E.060713) (C.E.080713) (C.E.110713) (C.E.140713) (C.E.180713) (C.E.040713) (C.E.100713) (C.E.120713) (C.E.090713) (C.E.170713) (C.E.230713) Measured Evening Noise at Clufflat Brae 105 100 95 90 85 80 Threshold 75 70 65 60 55 50 45 40 35 30 (no Average (n) = Investigation Report Number
(C.N.010713) (C.N.140713) (C.N.150713) (C.N.160713) (C.N.180713) (C.N.270713) (C.N.290713) (C.N.310713) (C.N.030713) (C.N.050713) (C.N.060713) (C.N.070713) (C.N.080713) (C.N.090713) (C.N.100713) (C.N.210713) (C.N.280713) (C.N.120713) (C.N.170713) (C.N.190713) (C.N.110713) (C.N.200713) (C.N.020713) Measured Night-time Noise at Clufflat Brae Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(D.D.080713) (D.D.150713) (D.D.180713) (D.D.220713) (D.D.260713) (D.D.300713) 105 100 95 90 85 80 75 Measured Daytime Noise at Dundas Home Farm Threshold 70 65 60 55 50 45 40 35 noise level Daily Noise Level (No (n) = Investigation Report Number 30 Note: The grey areas of the chart represent days on which no construction works have been conducted. The average has not been included as no works have been conducted at this location.
(E.D.010713) (E.D.020713) (E.D.030713) (E.D.050713) (E.D.060713) (E.D.090713) (E.D.130713) (E.D.170713) (E.D.180713) (E.D.230713) (E.D.250713) (E.D.260713) (E.D.290713) (E.D.040713) (E.D.100713) (E.D.110713) (E.D.120713) (E.D.200713) (E.D.220713) (E.D.150713) (E.D.160713) (E.D.190713) (E.D.240713) (E.D.270713) (E.D.300713) (E.D.310713) 105 100 95 90 85 80 75 Measured Daytime Noise at Echline Threshold 70 65 60 55 50 45 40 35 noise level Daily Noise Level (No (n) = Investigation Report Number 30 Note: The grey areas of the chart represent days on which no construction works have been conducted. The average has not been included as no works have been conducted at this location.
(I.D.040713) (I.D.140713) (I.D.210713) (I.D.280713) (I.D.060713) (I.D.090713) (I.D.120713) (I.D.070713) (I.D.160713) (I.D.200713) (I.D.250713) (I.D.300713) Measured Daytime Noise at Inchgarvie Threshold 35.0 (no Average (n) = Investigation Report Number
(I.E.010713) (I.E.080713) (I.E.020713) (I.E.040713) (I.E.090713) (I.E.110713) (I.E.150713) (I.E.160713) (I.E.180713) (I.E.200713) (I.E.220713) (I.E.260713) (I.E.050713) (I.E.070713) (I.E.230713) Measured Evening Noise at Inchgarvie Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(I.N.010713) (I.N.030713) (I.N.040713) (I.N.070713) (I.N.080713) (I.N.090713) (I.N.110713) (I.N.120713) (I.N.130713) (I.N.060713) (I.N.140713) (I.N.150713) (I.N.160713) (I.N.170713) (I.N.200713) (I.N.020713) (I.N.180713) (I.N.190713) (I.N.230713) (I.N.260713) (I.N.210713) (I.N.220713) (I.N.240713) (I.N.250713) (I.N.270713) (I.N.290713) (I.N.300713) (I.N.310713) (I.N.280713) Measured Night-time Noise at Inchgarvie Level 35.0 30.0 (no Average (n) = Investigation Report Number
(L.D.030713) (L.D.070713) (L.D.210713) (L.D.280713) (L.D.130713) (L.D.140713) (L.D.040713) (L.D.050713) (L.D.080713) (L.D.100713) (L.D.110713) (L.D.120713) (L.D.170713) (L.D.290713) (L.D.300713) Measured Daytime Noise levels at Linn Mill Level (no 35.0 30.0 Average (n) = Investigation Report Number
(L.E.090713) (L.E.100713) (L.E.110713) (L.E.120713) (L.E.200713) (L.E.210713) (L.E.270713) (L.E.290713) (L.E.310713) (L.E.130713) (L.E.180713) (L.E.230713) Measured Evening Noise at Linn Mill Level 35.0 30.0 (no Average (n) = Investigation Report Number
(L.N.010713) (L.N.030713) (L.N.050713) (L.N.110713) (L.N.150713) (L.N.170713) (L.N.200713) (L.N.020713) (L.N.040713) (L.N.060713) (L.N.080713) (L.N.120713) (L.N.140713) (L.N.180713) (L.N.190713) (L.N.210713) (L.N.250713) (L.N.260713) (L.N.290713) (L.N.300713) (L.N.220713) (L.N.230713) (L.N.240713) (L.N.270713) (L.N.310713) (L.N.070713) (L.N.090713) (L.N.100713) (L.N.130713) (L.N.160713) (L.N.280713) Measured Night-time Noise at Linn Mill Threshold 35.0 30.0 (no Average (n) = Investigation Report Number
115.0 110.0 35.0 30.0 Measured Daytime Noise at Newton Threshold (no (n) = Investigation Report Number Note: The grey areas of the chart represent days on which no construction works have been conducted. It should be noted that the measured s Mon - Fri can not be attributed to construction works due to the considerable distance (1.75 kilometers) between this monitoring location and the closest construction works. Data is missing between 16/07/13 to 21/07/13 due to device error.
Measured Daytime Noise at Port Edgar Threshold (no Average (n) = Investigation Report Number
35.0 30.0 Measured Evening Noise at Port Edgar ASsessment Category threshold (no Average (n) = Investigation Report Number
Measured Night-time Noise at Port Edgar 35.0 30.0 Threshold (no Average (n) = Investigation Report Number
(Sc.D.010713) (Sc.D.020713) (Sc.D.030713) (Sc.D.300713) (Sc.D.040713) (Sc.D.050713) (Sc.D.060713) (Sc.D.080713) (Sc.D.120713) (Sc.D.130713) (Sc.D.150713) (Sc.D.170713) (Sc.D.180713) (Sc.D.200713) (Sc.D.220713) (Sc.D.230713) (Sc.D.240713) (Sc.D.250713) (Sc.D.260713) (Sc.D.270713) (Sc.D.290713) (Sc.D.090713) (Sc.D.100713) (Sc.D.110713) (Sc.D.160713) (Sc.D.190713) (Sc.D.310713) 115.0 110.0 35.0 30.0 Measured Daytime Noise at Scotstoun Threshold (no (n) = Investigation Report Number Note: The grey areas of the chart represent days on which no construction works have been conducted. The monthly average for has not been included as no works have been conducted at this location.
01/07/2012 02/07/2012 03/07/2012 04/07/2012 05/07/2012 06/07/2012 07/07/2012 08/07/2012 09/07/2012 10/07/2012 11/07/2012 12/07/2012 13/07/2012 14/07/2012 15/07/2012 16/07/2012 17/07/2012 18/07/2012 19/07/2012 20/07/2012 21/07/2012 22/07/2012 23/07/2012 24/07/2012 25/07/2012 26/07/2012 27/07/2012 28/07/2012 29/07/2012 30/07/2012 31/07/2012 (S.D.020713) (S.D.010713) (S.D.030713) (S.D.080713) (S.D.100713) (S.D.110713) (S.D.120713) (S.D.130713) (S.D.170713) (S.D.190713) (S.D.200713) (S.D.220713) (S.D.290713) (S.D.040713) (S.D.090713) (S.D.160713) (S.D.230713) (S.D.240713) Measured Daytime Noise at Springfield Threshold (no (n) = Investigation Report Number Note: The grey areas of the chart represent days on which no construction works have been conducted. The monthly average for has not been included as no works have been conducted at this location.
(T.D.020713) (T.D.030713) (T.D.040713) (T.D.050713) (T.D.240713) (T.D.090713) (T.D.120713) (T.D.150713) (T.D.170713) (T.D.200713) (T.D.210713) (T.D.270713) (T.D.220713) (T.D.230713) (T.D.250713) (T.D.260713) (T.D.290713) (T.D.300713) (T.D.310713) Measured Daytime Noise at Tigh-Na-Grian 115.0 110.0 Threshold (no contruction) Average (n) = Investigation Report Number
(T.D.020713) (T.D.070713) (T.D.080713) (T.D.100713) (T.D.130713) (T.D.140713) (T.D.150713) (T.D.190713) (T.D.210713) (T.D.220713) (T.D.230713) (T.D.300713) Measured Evening Noise at Tigh-Na-Grian Assessment category threshold (no Average (n) = Investigation Report Number
(T.N.040713) (T.N.310713) (T.N.250713) (T.N.280713) (T.N.290713) (T.N.010713) (T.N.020713) (T.N.030713) (T.N.050713) (T.N.070713) (T.N.080713) (T.N.100713) (T.N.120713) (T.N.130713) (T.N.140713) (T.N.150713) (T.N.160713) (T.N.170713) (T.N.180713) (T.N.190713) (T.N.200713) (T.N.210713) (T.N.220713) (T.N.230713) (T.N.240713) (T.N.260713) (T.N.300713) Measured Night-time Noise at Tigh-Na-Grian threshold 35.0 30.0 (no Average (n) = Investigation Report Number
(W.D.040713) (W.D.050713) (W.D.090713) (W.D.130713) (W.D.240713) (W.D.260713) (W.D.270713) (W.D.100713) (W.D.230713) Measured Daytime Noise at Whinny Hill Threshold 35.0 30.0 (no Average (n) = Investigation Report Number Note: The grey areas of the chart represent days on which no construction works have been conducted.