China - Second Henan Highway Project : environmental action plan (Vol. 4 of 7) : Linking road project : environmental impact assessment

REC; 7'/ED 93 SEP 20 PM 4: 23 LUOYANG-SANMENIxA EXPRESSWAY Linking Road Project ENVIRONMENTAL IMPACT ASSESSMENT Henan Provincial EnvirQamental Protection Institute August, 1995  Table of Contents 1. General 1.1 Project Location and Size 1.2 EIA Purpose 1.3 EIA Basis 1.4 EIA Description and Highlight 1.5 EIA Study Area 1.6 EIA Standard and Base Year 2. General Description of Project and Identification of Project-related Environmental Impact 2.1 General Description of Project 2.2 Identification of Project-related Environmental Impact 3. Physical Environment and Socioeconomy 3.1 Physical Environment 3.2 Socioeconomy 4. Investigation and Evaluation of Environmental Quality Situation 4.1 Eco-environmental Setting 4.2 Evaluation of Acoustic Environmental Situation 4.3 Evaluation of Air Environmental Quality 5. Environmental Impact Assessment and Analysis 5.1 Environmental Impact Assessment in Construction Stage 5.2 Environmental Impact Assessment in Operation Stage 5.3 Other Environmental Impact upon Completion of Linking Roads 6. Environmental Mitigation Measures, Environmental Management/Monitoring Programs 6.1 Environmental Protection Measures 6.2 Environmental Management Program 6.3 Environmental Monitoring Program 6.4 Training Program 7. Public Participation 8. Conclusion  1. General Luoyang-Sanmenxia expressway, a section of the national trunk road from Lianyungang to Huoerguosi, has already succeeded in project identification by a World Bank mission. Linking roads to this expressway, including Jiangzhuang-Baiqiang linking road in Xinan County, Yima linking road in Yima and Mianchi linking road in Mianchi, are also proposed to partly financed by the World Bank. Background of these roads is described in Table 1-1. In accordance with relevant requirements of the Government and the World Bank, the linking road project is identified to be a Class B construction project which also needs environmental impact assessment. As entrusted by the Highway Administration under Henan Provincial Communications Department, Henan Provincial Environmental Protection Institute is held responsible for the EIA of the linking road project. Table 1-1 Background of Linking Roads to Luoyang-Sanmenxia Expressway Linking Road Locationr Pavement Grade Nature Length {km) Joint & Chainage Jiangzhuang- Xinan County Asphalt Concrete Grade 2 In Mountain New 9.3 Xinan Interchange at Baiqiang & Heavyhilty Area k27+500 Yima Yima City Asphalt Concrete Grade 2 in Mountain Widening. 3.1 Yima Interchange at l _________ ______________ & Heavy-hilly Area Upgrading k52'180 Mianchi Mianchi County Asphalt Concrete Grade 2 in Plain & New 2.0 MiancF'i Interchange l . Slight-hilly Area at k63 + 518 1.1 Project Location and Size Henan Province is located at the centpr cf China, in the middle reaches of the Yellow River. These linking roads are separately distributed in Xinan, Yima and Mianchi alcng the above- mentioned expressway, see Map 1-1 for the project location. These linking roads have a total length of 14.4 km, including 9.3 km Jiangzhuang-Baioiang linking road in Xinan, 3.1 km Yima linking road in Yima and 2 km Mianchi linking road in Mianchi. As designed, these roads are to be built according to standards for Grade 2 roads in mountain and heavy-hilly areas except the last one which is to be completed according to standards for Grade 2 roads in plain and slight-hilly areas. The total cost of these roads is estimated at 42.3383 million RMB, including 25.8143 million RMB for Xinan linking road, 11.094 million RMB for Yima road and 5.43 million RMB for Mianchi road. These linking roads are to be newly constructed except Yima road which is to be upgraded. 1.2 EIA Purpose The EIA purpose includes: 1) investigating the local environmental setting of the project; 2) analyzing and predicting environmental impacts in constr_uction and operation stages of the project; 3) environmentally justifying the project feasibility; 4) proposing environmental impact Page-1  mitigating and offsetting measures, developing environmental management and monitoring programs. All these are for the purpose of providing scientific basis for environmental protection design and environmental management of the project. 1.3 EIA Basis 1.3.1 "Management Procedure for Environmental Protection of Construction Projects' by NEPA (National Environmental Protection Agency) in 3ts document No. 003 (86) 1.3.2 "Management Procedure for Environmental Protection of Communications Construction Projects" by the Minister of Communications in his decree No. 17 (90) 1.3.3 "Regulation for Environmental Protection of Construction Projects in Henan Province" 1.3.4 "Notice on Enhancing EIA Management of International Financing Organization-financed Construction Projects" by NEPA, SPC (State Planning Commission), MOF (Ministry of Finance) and the Bank of China in document No. HJ-324 (1993) 1.3.5 Feasibility report of the linking road project 1.3.6 Letter of assignment for EIA of the linking road project 1.3.7 Aide Memoire of the World Bank identification mission for Henan 2 highway project 1.4 EIA Description and Highlight On the basis of environmental factors as screened, the following subjects have been identified for the project EIA: 1.4.1 General description of projectand identification of project-related environmental impact 1.4.2 Local physic;.,' environment and socioeconomy 1.4.3 Investigation and evaluation of environmental quality situation 1.4.4 Environmental impact assessment and analysis 1.4.5 Environmental protection measures, environmental management/monitoring programs 1.4.6 Public participation 1.4.7 EIA conclusions Among these, subjects 1, 3, 4 and 5 are highlighted. Emphasis on subjects 3 and 4 are focused on acoustic and air environment. Since none of these linking roads will go across large rivers, the EIA does not consider surface water impacts by the project. Page-2  1.5 EIA Study Area Investigation of the local physical environment and socioeconomy covers Xinan, Yima and Mianchi, while prediction of traffic noise and air impacts involves the range 200 m off the roadside. 1.6 EIA Standard and Base Year According to the local environmental protection agencies, the EIA adopts the following environmental standards: Environmental noise: the range 100 m off the linking roadside applies Category IV environmental noise standard of the 'Environmental Noise Standard for Urban Areas" (GB3096-93) while the range 100-200 m off the roadside uses Category II standard; Air: Level II as included in the "Air Environmental Quality Standard" (GB3095-82); The project EIA involves the following base years: Construction stage: March 1997-Sep. 1998 Early operation stage: 2000 Middle operation stage: 2010 Late operation stage: 2018 2. General Description of Project and Identification of Project-related Environmental Impact 2.1 General Description of Project 2.1.1 Alignment Starting at Jiangzhuang 3 km west of Xinan County seat at k761 4 500 of National Road 310, Xinan linking road goes west to join Luoyang-Sanmenxia expressway at Heishangou and Xigou (k27 + 500) before it goes north by Shanghuang7ou, Xiayingou and Shangyingou and then ends at Baiqiang whore in connects with Xinan-Sicun highway. The total lengthf is 9.3 km, including 3 km distributed south of the expressway and 6.3 km north thereof. Map 2-1 illustrates alignment of this linking road. Yima linking road embarks from k784+700 of National Road 310. After leaving the planned Xiangshan Stress, it goes north by Donggou, Lijiagou and Rugeta where it links the expressway at Yima interchange (k52+ 180). This road is 3.1 km long and is aligned as shown in Map 2-2. Starting from Donghuancheng Road in the county seat, Mianchi linking road heads north to go by Maling before it connects with Mianchi interchange on the expressway at k63+518. The totaWlength is 2 km, refer to Map 2-3 for the road alignment. Page-3  2.1.2 Main Technical and Economic Indices Main technical and economic indices of these linking roads are as listed in Table 2-1. Table 2-1 Main Technical and Economic Indices of Linking Roads Description Unit Xinan Linking Road Yima Linking Road Mianchi Linking Road Grade Grade 2 in mountain Grade 2 in mountain Grade 2 in plain & l_____________________ ____________ & heavy-hilly areas & heavy-hilly areas slight-hilly areas Catculated Driving Speed km/h 40 40 40 Length km 9.3 3.1 2.0 Roadbed Width m 12 (15.5) s5 15 Surface Width m 9 (15.0) 14.5 14.5 Bridge 150 m13 20 m/l Culvert =_ _ 25 2 1 Load Capacity of Bridge/ Vehicle-20 t. trailer-1 20 t C ulvert _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Roadbed Earth Works m 378000 199000 66100 Cost Estimate 1l6 RMB/km 25.8143 1 1.094 5.43 Unit Cost 10' RM8hm 2.7757 3.579 2.715 Note: Of the total length of Xinan linking road, the 3 km section south of the expressway (from Jiangzhuang to the expressway) has roadbed width of 1 5.5 m and surface width of 15.0 m while the rest 6.3 km north the expressway (up to Baiqiang) has roadbed width of 12 m and surface width of 9 m. 2.1.3 Project Cycle and Construction Schedule All preparatory works are proposed to be completed by the end of 1996. As planned, the project is to be commenced in March 1997 and completed in September 1998. Each of these linking roads will be constructed as a separate lot on LCB (local competitive bidding) basis. However, the internationally applied FIDIC management model will be applied to the project construction management to ensure high quality completion as scheduled. 2.1.4 Requirement, Origin and Hauling of Major Materials Major materials required for these linking roads are as shown in Table 2-2. Xinan linking road: Steel, timber and asphalt will be purchased from Luoyang at a hauling distance of 25 km and will be transported via road. Cement will be supplied by Tiemen Cement Factory. Lime will be locally supplied. Macadam, sand and gravel will source from Yiyang at a hauling distance of 40 km and will be transported via road while middle-sized and coarse sand is obtained from Ruyang at a hauling distance of 110 km and is transported via road. Page-4  Yima linking road: Cement, lime and gravel will be procured from Mianchi, Tiemen Township and Hongyang while steel and timber are supplied by Yima. All these materials will be hauled via road since the hauling distance is short. Originating from Nanyang, however, middle-sized and coarse sand will be transported, via railway, to Yima railway station at a hauling distance of 490 km and then to the worksite via road (with a hauling distance of 6 km). Mianchi linking road: With cement,lime, gravel, steel and timber all purchased from Mianchi, the hauling distance is very short. Asphalt will be transported from Luoyang via road. But middle-sized and coarse sand will be transported from nanyang, via railway, to Mianchi railway station at a hauling distance of 500 km and then to the worksite via road at a hauling distance of 6 km. 2.1.5 Traffic Flow As predicated in the feasibility report, traffic flow of these linking roads in different base years is as described in Table 2-3. Table 2-3 Predicted Traffic Flow of Linking Roads unit: vehicleld Linking Road 2000 2010 2018 Xinan Linking Road 4404 9829 14538 Yima Linking Road 3858 8097 10584 Mianchi Linking Road 467 8578 11328 Based on day to night traffic flow ratio 2.33, the peak hourly traffic flow in day hours will account for 10% of the daily flow. Traffic flow at different time intervals is calculated as shown in Table 2-4. Table 2-4 Predicted Traffic Flow of the Linking Roads Traffic Flow {vehicle/h) Linking Road Time Interval 2000 2010 2018 Day Peak 440 983 1454 Jiangzhuang- Day Average 220 491 727 Baiqiang Night Average 132 295 436 Day Peak 386 810 1058 Yima Day Average 193 405 529 Night Average 116 243 318 Day Peak 447 858 1133 Mianchi Day Average 223 c 429 566 _Night Average 134 257 340 Page-5  According to investigations as included in the project feasibility study report and the local vehicle constitutions, vehicles on these linking roads are considered herein-to be composed of 20% large-sized, 50% middle-sized and 30% small sized ones. 2.2 Identification of Project-related Environmental Impact In line with the project features, possible environmental impact factors include: Construction stage: noise and vibration due to construction activities fume due to construction activities, blown dust due to material transportation waste gas arising from asphalt preparation waste water resulting from construct:o, activities sewage contributed by construction workers land use for temporary use borrow/spoil area operations Operation stage: noise and vibration due to vehicles exhaust gas discharged from vehicles land coverage for permanent use of roads blown dust arising from vehicles road surface erosion by precipitated water traffic accident Environmental element impacts by these environmental factors are identified, by using an expert identification system, as illustrated in Table 2-5. As seen from Table 2-5, most of the environmental impacts in the construction stage will only exist in limited time, but impacts will exist in prolonged time during the operation stage. With short construction stage, short length, low roadbed and small earthwork quantity, the impacts during the linking road construction were carefully assessed. In line with the local actuality and the environmental impact identification, such impacts as soil erosion, alteration of hydrological regimes, noise and air are regarded as key environmental elements of the EIA. 3. Physical Environment and Socioeconomy 3.1 Physical Environment 3.1.1 Topography and Geomorphology Xinan and Yima linking roads are situated in mountain and heavy-hilly areas where gullies are well developed. Along these two roads, the land declines from north to south. Mianchi linking road is situated where the land is rather flat and fluctuates to a less extent. 3.1.2 Engineering Geology and Hydrogeology All these roads fall within mountain and hillyland areas in Cascade II terrace of China, with strata mainly composed of Quaternary system, local Triassic system, Permian system, Ordovician system, Cambrian system and middle Proterozoic erathem. Page-6  Table 2-5 Identification of Environmental Impacts Environmental Factor Time Stage Impact Element Air Waterbody Vegotation Agriculture Irrigation Water/Soil Loss Archeology Livelihood Landscape Noise, Vibration 0 0 . _ o o as *S