The Pinglu Canal is a 134.2-kilometre navigation canal in Guangxi, southern China, linking the Xijin Reservoir on the Yu River, within the Xijiang river system, to the Gulf of Tonkin, also called the Beibu Gulf. Its route begins at the mouth of the Pingtang River in Hengzhou, crosses the watershed into the Qin River basin, and continues south through Qinzhou. Built to China's Class I inland-waterway standard, it accommodates 5,000-tonne-class vessels. Construction began on August 28, 2022, and the canal opened to navigation on September 16, 2026. (qingdao.gov.cn)
The canal provides an additional outlet to the sea for the Pearl River–Xijiang inland navigation network and forms part of China's New International Land–Sea Trade Corridor. For relevant inland origins, the route shortens the waterway journey to the sea by more than 560 kilometres compared with the traditional route through Guangzhou. Three navigation complexes—Madao, Qishi, and Qingnian—overcome an approximately 65-metre difference in water level. Its development combines large-scale infrastructure construction with water-saving lock engineering, port and logistics integration, and measures addressing river habitats and coastal wetlands. Projected transport benefits and environmental safeguards remain distinct from outcomes established through subsequent operation and monitoring. (en.ccccltd.cn)
Route, watershed crossing, and geographical setting
The Pinglu Canal extends for 134.2 kilometres across southern Guangxi, from the Pingtang River mouth in the Xijin Reservoir area of Hengzhou southward to the coastal waters of Qinzhou. Hengzhou is administered by Nanning; the remainder of the route passes through Lingshan County and the Qinbei and Qinnan districts of Qinzhou. From its northern entrance, the alignment follows the Shaping River corridor, crosses the divide into the Jiuzhou River catchment, and reaches the Qin River near Luwu, a town in Lingshan County. It then follows the Qin River south through the Qinzhou urban area toward Qinzhou Bay and the Gulf of Tonkin, also called Beibu Gulf. The project's southern endpoint is the beginning of Qinzhou Port’s eastern navigation channel, rather than the open gulf beyond the port approaches. (cjournal.hep.com.cn)
The northern connection is with the Yu River, impounded here by Xijin Reservoir, and through it with the Xijiang navigation network of the Pearl River system. The Qin River belongs to a separate coastal drainage basin discharging into Qinzhou Bay. The critical geographical intervention is therefore a crossing between catchments, not simply the improvement of one continuous natural river. On the northern side, the Shaping River drains toward Xijin Reservoir; on the southern side, the Jiuzhou River is a tributary of the Qin River. Read from north to south, the alignment proceeds up the Shaping valley, through the intervening divide, and down the Jiuzhou valley to the Qin main stem near Luwu. A 2025 hydrogeological study identifies the Shaping–Jiuzhou–Luwu corridor as the principal excavation study area on the two sides of this divide. (mee.gov.cn)
The engineering alignment comprises five named reaches: the Shaping River reach, 20.7 kilometres; the watershed-crossing reach, including the Jiuzhou River corridor, 29.3 kilometres; the Qin River main-stem reach, 48.5 kilometres; the Qinzhou urban reach, 21.4 kilometres; and the estuary and nearshore approach, 14.3 kilometres. These are engineering divisions: the entire 29.3-kilometre “watershed-crossing reach” should not be understood as a cutting through previously dry ground. The following schematic shows their relationship; arrows indicate route order toward the sea, not natural flow direction, and distances are not drawn to scale. (hyj.gxzf.gov.cn)
Yu River–Xijiang navigation network
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Xijin Reservoir / Pingtang River mouth — Hengzhou
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Shaping River reach 20.7 km
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Watershed-crossing reach 29.3 km
Shaping catchment → divide → Jiuzhou catchment
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Luwu — connection with the Qin River
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Qin River main-stem reach 48.5 km
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Qinzhou urban reach 21.4 km
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Estuary and nearshore approach 14.3 km
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Qinzhou Port eastern-channel entrance
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Gulf of Tonkin
Thus, the canal combines a reservoir-connected entrance, excavated interbasin connections, and substantially modified existing river channels. Along the river corridors, widening, dredging, rock removal and bend cutoffs establish the navigation alignment; excavation across the divide supplies the connection absent from the natural drainage network. Farther downstream, the route changes from an inland river corridor to an estuarine and nearshore approach. The approved design reflects that transition: specified navigation-channel bottom widths increase from 80 metres in the upper reaches to 90 metres in the Qinzhou urban reach and 130 metres in the estuary and nearshore reach. These dimensions describe the navigation channel, not the full width of the river or water surface. (sciengine.com)
Planning origins and project authorization
The canal’s transport-planning rationale was to give the Pearl River–Xijiang inland navigation network a southern outlet to the Beibu Gulf, rather than requiring waterborne freight bound for the coast to follow the river system east toward Guangzhou. Connecting inland waterways with the gulf’s seaports was intended to improve access to maritime trade for Guangxi and parts of southwestern China. The project appeared in the Pearl River Basin Comprehensive Plan (2012–2030), approved by the State Council in 2013, with a proposed Class I waterway accommodating 3,000-tonne-class vessels. The 2019 Overall Plan for the New International Land–Sea Trade Corridor called for further study and appraisal of a canal connecting Guangxi’s Xijiang with Beibu Gulf ports. These were planning provisions, not authorization to begin construction. (finance.people.com.cn)
Guangxi’s transport department began actively advancing the project in March 2018, combining efforts to secure its inclusion in national and regional plans with commissioned technical investigations. Preparation of the engineering feasibility report began in June 2021. At a September 8, 2022 government press conference, regional development and reform official Fan Yijiang described more than twenty internal reviews, consultancy evaluations and joint departmental examinations during the preliminary process. The project-proposal stage addressed the necessity, scale and overall benefits of construction; the feasibility stage examined technical and economic viability through twenty-eight specialist studies, including navigation planning and water-resource appraisal. Thus, the project’s authorization rested on successive assessments rather than a single approval of the canal concept. (plyhbwg.gxrb.com.cn)
The Ministry of Transport’s Pearl River Administration reported that the feasibility study underwent repeated consultation, review and evaluation involving the ministry’s Transport Planning and Research Institute, Changjiang Survey, Planning, Design and Research, China International Engineering Consulting Corporation, and specialist experts. The assessed engineering scheme encompassed the navigation channel, navigation complexes, cross-river structures and supporting works. By the feasibility-approval stage, the proposed standard was a roughly 135-kilometre Class I inland waterway for 5,000-tonne-class vessels, rather than the 3,000-tonne-class provision in the earlier basin plan. Economic appraisal formed part of the approval process; the benefits described at that stage were prospective assessments, not observed transport outcomes. (zjhy.mot.gov.cn)
Three decisions established the principal authorization sequence in 2022. On March 17, the Guangxi Development and Reform Commission approved the project proposal. On July 19, the thirty-first session of the Standing Committee of the Thirteenth Guangxi People’s Congress adopted a resolution consenting to construction. On July 20, following that resolution and regional Party committee and government agreement, the commission approved the engineering feasibility report. The legislative resolution and administrative feasibility approval were therefore distinct acts. Approval also did not complete every preconstruction requirement: the transport administration subsequently identified further survey and design work and land, forest and sea-use procedures as tasks still to be advanced. (plyhbwg.gxrb.com.cn)
The approved development purpose placed navigation first, while incorporating water supply, irrigation, flood control and improvement of the aquatic environment. These associated objectives did not make the project principally a water-supply or flood-control scheme. Nevertheless, navigation itself required water-resource scrutiny because the canal would transfer water out of the Yu River basin. The planning process therefore included both planning-level and project-level water-resource appraisals, addressing navigation demand alongside downstream flow requirements and flood safety. Those assessments were separate from the transport and economic case for providing a new outlet to the sea. (zjhy.mot.gov.cn)
Ownership, financing, and institutional responsibilities
Pinglu Canal Group Co., Ltd. was registered on June 30, 2022, as a wholly state-owned enterprise directly under the Guangxi Zhuang Autonomous Region. Its responsibilities encompass investment in and construction of the canal, routine maintenance, operation, and integrated development of the economic belt along its route. The company’s mandate therefore extends beyond delivering the civil-engineering works: it also covers management of the completed infrastructure and associated development activities. These are the project company’s corporate responsibilities, rather than a transfer to it of all governmental regulatory functions. (plyh.gx.cn)
The group has registered capital of 20 billion yuan and six founding shareholders: the Guangxi Department of Transport, Guangxi Beibu Gulf Investment Group, Guangxi Beibu Gulf International Port Group, Guangxi Communications Investment Group, Nanning Communications Investment Group, and Qinzhou Development Investment Group. A 2023 government transport-infrastructure special-bond disclosure described the ownership allocation as 40% funded by the autonomous region’s finances and temporarily held on its behalf by the transport department; 10% for each of the three regional corporate groups; and 15% each for Nanning and Qinzhou. The municipal contributions were specified as a combination of cash and valued land-use rights. This structure combines regional and municipal public investment within a single state-owned enterprise. (plyh.gx.cn)
Registered capital is distinct from the canal’s total investment requirement and does not, by itself, establish how much cash shareholders have paid in or how much construction expenditure has occurred. On September 17, 2026, Xinhua reported total project investment of approximately 72.7 billion yuan; the group’s own project description identifies approximately the same amount as the engineering cost estimate. These figures describe the project’s overall investment scale, not a published final-account settlement. They should therefore remain separate from corporate capitalization, individual financing commitments, funds disbursed by lenders, and payments made for completed works. (plyh.gx.cn)
An important early financing instrument was the China Development Bank infrastructure fund, part of the policy-based development-finance instruments used to support infrastructure investment. According to a December 18, 2023, Xinhua Finance report, the bank’s Guangxi branch deployed 7.273 billion yuan through this instrument to the canal project in 2022. The report associated the funding with resolving initial financing constraints and supporting the start of construction. Its description of funds as deployed distinguishes this transaction from a loan facility that had merely received approval, although deployment to the project is not itself evidence that the entire amount had already been paid to contractors. (cnfin.com)
Longer-term lending formed a separate component. China Development Bank stated on May 12, 2023, that it had approved 20 billion yuan in supporting long-term loan credit for the canal, alongside the infrastructure-fund investment. The December 2023 report likewise identified the financing combination as “infrastructure fund plus medium- and long-term project loans.” The 20-billion-yuan figure was a credit approval, not a statement that the full facility had been drawn or spent. It was also separate from the identically sized registered capital of Pinglu Canal Group: one concerned lender financing, while the other concerned the project company’s shareholder capitalization. (cdb.com.cn)
Construction sequence and civil engineering
Construction began on August 28, 2022, but the initial works and the subsequent full-route construction were distinct stages. Preliminary works were completed on March 18, 2023; main works commenced along the entire alignment on May 23. A December 2023 legislative investigation recorded another sequence within that expansion: the first concrete pours for ancillary works at the Qingnian, Madao, and Qishi complexes took place in May, July, and August 2023, respectively. The same investigation reported that construction vessels had entered the coastal work area to undertake channel excavation and dredging after obstructions within the construction corridor had been cleared. (bjrd.gov.cn)
Channel construction required different methods where the alignment enlarged existing rivers, cut through land, or crossed waterlogged ground. A documented example was navigation-channel contract 4, an 11.88-kilometre reach of the Jiuzhou River between Madao and Qishi, with a designed channel-bottom width of 80 metres. This reach followed an existing river with three natural tributary inflows, nearby housing, and complex ground conditions. China Energy Engineering Corporation reported that contractors relocated tributary entry points, directing their combined flow through the first-stage construction area and then into a diversion channel that bypassed the second-stage excavation. Three diversion stages and four excavation stages allowed the work areas to be opened successively; the company described the arrangement as enabling dry-ground construction throughout the reach. (wap.sasac.gov.cn)
Temporary water exclusion and slope protection were closely linked to excavation sequencing. In contract HD7, a 6.6-kilometre reach downstream of Luwu, five bend-cutting work areas retained rock barriers at their upstream and downstream ends as cofferdams. Guangxi’s emergency-management authorities reported in May 2024 that these barriers were raised and reinforced for the flood season, with geotextile protection on their upstream faces against erosion. Their crest levels were reported to accommodate a five-year flood. Where slopes crossed cavernous, geologically unfavourable ground, contractors excavated and protected one level at a time, temporarily covered exposed surfaces, installed drainage, and inspected both slopes and cofferdams for changes. (mem.gov.cn)
Cross-channel structures and supporting facilities formed separate work packages from the principal navigation complexes. The approved engineering scope included channel works, navigation complexes, cross-river facilities, and associated works. At Jiuzhou Bridge, opened in April 2024, subsequent excavation close to bridge foundations required additional protection: the construction team supplemented the reinforcement scheme with grouting and used full-casing, full-rotation drilling equipment to construct 138 piles supporting the bridge-pier and slope-protection system. Navigation anchorages were another component. X in fu Anchorage, upstream of Madao, was designed to accommodate fleet re-formation, registration, and queuing before lock passage rather than perform the water-level-changing function of a lock. (zjhy.mot.gov.cn)
Construction surveying and monitoring combined earthwork measurement with observation of unstable surfaces. For contract 4, China Energy Engineering Corporation reported drone aerial surveys, robotic slope monitoring, and a self-developed drone-management platform for inspections and earthwork-volume calculations. It attributed a 40 per cent improvement in earthwork-calculation efficiency to that system; this was a contractor-reported measurement benefit, not a quantified improvement in overall construction productivity. On underwater works elsewhere along the canal, China Communications Construction Company reported attaching BeiDou positioning receivers to excavator buckets, making bucket positions visible to operators during dredging. These digital systems complemented physical drainage, staged excavation, reinforcement, and field inspections rather than replacing them. (wap.sasac.gov.cn)
Navigation standard and the three lock complexes
The canal is designed to China’s Class I inland-waterway standard, with a representative 5,000-tonne-class bulk carrier measuring 90 metres long, 15.8 metres in beam and 5.0 metres in design draught. These are vessel-design parameters, not a statement of annual cargo throughput: yearly capacity also depends on traffic composition, loading, lock cycles and operating availability. The approved channel dimensions vary by reach, from 6.3 metres depth and 80 metres width in the upstream and central sections to 6.5 metres depth and 130 metres width in the nearshore approach. Nor does the designation imply unrestricted access for ocean-going ships. The Ministry of Transport’s September 2026 account expressly qualified access by international-trading vessels as subject to applicable requirements. (hyj.gxzf.gov.cn)
From upstream to downstream, the Madao, Qishi and Qingnian complexes divide the route into controlled water-level reaches and collectively overcome an approximately 65-metre difference between the inland starting point and the coastal outlet. Each contains two parallel, single-stage ship locks: vessels negotiate one chamber at each complex, rather than a staircase of several chambers within the same complex. Thus, the three complexes contain six navigation chambers altogether. A complex includes more than those chambers: the approved layouts incorporate discharge sluices and connecting dams, while Qingnian also includes a fish passage. These associated structures regulate water and connect the navigation works to the surrounding river system. (mot.gov.cn)
Each chamber has effective dimensions of 300 metres in length, 34 metres in width and 8 metres minimum water depth over the sill. The last figure is a lock-threshold specification, not the depth maintained throughout the canal. Parallel chambers provide separate lockage paths, although their operation remains coordinated with shared approaches and hydraulic systems. At Qingnian, the two locks use common approach channels. Its operating notice of September 12, 2026, specifies upstream navigable water levels between 8.00 and 9.32 metres and downstream levels between −1.62 and 6.50 metres, together with at least 18 metres of navigation headroom. The permissible operating envelope therefore depends on water level and flow, not solely on chamber size. (hyj.gxzf.gov.cn)
The navigation gates close the ends of a chamber, whereas valves regulate water movement through the filling-and-emptying system. In a descending lockage, a vessel enters at the upper-reach level, the entrance gate closes, and controlled discharge lowers the chamber water until it matches the downstream approach; the downstream gate then opens. Ascending passage reverses this sequence. Water-level change lifts or lowers the floating vessel without mechanically lifting the ship itself. The water-saving arrangements modify where water is stored and transferred during this process. China Energy Engineering’s installation contractor reported that Qingnian’s June 2026 wet joint tests reproduced entry, gate and valve operation, water-level change and departure in both directions, specifically checking synchronization among equipment. (ghcb.ceec.net.cn)
Valve actuation time is distinct from filling time or the duration of a complete lockage. In its September 18, 2026, account, China Communications Construction Company reported that the large working valves could open in one minute and close in 30 seconds. The same account claimed a two-to-fourfold improvement over conventional locks and a world record for valve opening and closing speed. Those comparisons were contractor statements, not published measurements of complete vessel transit times. Commissioning also addressed performance beyond speed: the Ministry of Transport reported checks on working- and maintenance-valve sealing, structural loading and deformation during staged filling at Madao. (en.ccccltd.cn)
Water supply, conservation, and hydraulic management
Lockage transfers water from higher to lower canal reaches, making a dependable supply necessary even when water-saving equipment recovers part of each chamber’s filling volume. The canal also transfers water out of the Yu River drainage basin, where abundant annual resources coexist with seasonally uneven inflows and dry-period shortages. At the Guangxi government’s September 8, 2022 press conference, regional water-resources chief engineer Chen Fake specified planning demands for navigation of 24 cubic metres per second in 2035 and 40 cubic metres per second in 2050. These were planning-horizon requirements, not measurements of initial operating consumption; navigation supply was to be coordinated with flood safety, domestic and industrial supply, and irrigation. (plyhbwg.gxrb.com.cn)
At Madao and Qishi, three water-saving basins are arranged in a vertically stacked configuration rather than spread horizontally beside each lock. The basins store water at different elevations and communicate with the chamber through controlled culverts. During chamber emptying, water is successively retained in the high-, middle-, and low-level basins instead of being discharged entirely downstream. During filling, stored water returns in the reverse sequence, driven by differences in water level; the upper reach supplies the remaining volume needed to bring the chamber to its upper operating level. Stacking reduces the footprint of the storage structures, an important constraint at Madao’s confined mountain site and near settlements at Qishi. This is partial recovery of lockage water, not a closed system eliminating upstream withdrawals. (news.sina.com.cn)
Qingnian uses the two parallel chambers themselves as interconnected storage volumes. When one chamber is at a higher level and requires emptying, some of its water can be transferred to the other chamber as that chamber fills. The arrangement therefore depends on coordinated operation of the two lines rather than separate three-level storage basins. Project construction commander Cheng Yaofei described this reciprocal filling-and-emptying arrangement in July 2024 as saving approximately 50% of lock water when the chambers exchange water. (xinhuanet.com)
Published comparisons place Madao and Qishi’s savings at approximately 60% or more relative to conventional locks without water recovery. In November 2023, Pinglu Canal Group deputy general manager and chief engineer Wei Dejian stated that design calculations projected approximately one billion cubic metres of annual savings across the canal. That annual figure is an engineering projection, not a measured operating-year total, and should be distinguished from the proportion recovered during a lock cycle. Commissioning addressed the practical operating conditions: the Nanjing Hydraulic Research Institute reported in September 2026 that its teams had completed 447 test sequences, including hydraulic commissioning and vessel trials, to establish operating modes balancing filling efficiency, water saving, and vessel safety. (ccccltd.cn)
The supply plan also imposes constraints outside the canal. Chen’s 2022 account specified compliance with the Xijiang water-allocation scheme’s minimum monthly-average release at Guigang of 400 cubic metres per second, with a monthly assurance rate of 90%. Subject to flood safety, the nearer-term strategy was coordinated dispatch of Yu basin hydraulic works, particularly Baise Reservoir, to meet navigation demand. Longer-term security was linked to implementation of the Guangxi Beibu Gulf water-resources allocation project. These provisions combine basin-scale regulation with lock-level conservation rather than treating water-saving chambers as a substitute for a reliable source. (plyhbwg.gxrb.com.cn)
Commissioning, navigation services, and early operation
Full-route inundation on June 3, 2026 marked the transition to hydraulic commissioning, rather than the opening of commercial navigation. Filling began at the Madao and Qishi complexes while overall construction was reported as more than 96% complete. At Madao, workers breached the downstream cofferdam to admit water, with the two lock lines tested sequentially; inspections covered valve sealing, structural loading, and deformation. The downstream filling programme was expected to take 30 days, reaching an elevation of +34 metres. At Qishi, water entered through pipes in the downstream cofferdam in three stages, with gates and valves tested at each planned level. Its 26-day programme was intended to bring the water level to +8.7 metres. These were commissioning schedules, not recorded vessel-transit times. (mot.gov.cn)
Navigation-readiness testing subsequently examined vessels, channels, and operating procedures together. An August 17 Ministry of Transport report described trials using four representative vessels: loaded and unloaded 5,000-tonne-class ships, and loaded 3,000- and 1,000-tonne-class ships. Exercises included passage through both lock lines at all three complexes, meeting on bends, overtaking, turning, tidal berthing, and night navigation. Tests also examined 206 representative navigation aids. Positioning data, vessel motion, current measurements, and mooring-line loads supported the assessments. Maritime, construction, and emergency organizations established coordinated traffic controls, with escort craft on standby and contingency plans for collision, grounding, oil spills, and persons overboard. (mot.gov.cn)
Operational preparation included digital monitoring and coordination beyond the canal itself. The sensing and transmission networks, completed on August 15, connected video, radar, radio communications, and hydrological observations through a dedicated fibre network totalling 262 kilometres. At a September 7 regional government briefing, officials announced that Guangxi’s integrated river–canal–sea intelligent dispatch platform was fully online, operating formalities were complete, and emergency support and cargo organization were in place. Lock passage nevertheless remained subject to the scheduling instructions of the lock operator: navigation notices required vessels to follow dispatch orders and proceed slowly through approach channels. Thus, platform readiness, lock scheduling, and permission to navigate were separate components of the opening arrangements. (mot.gov.cn)
The canal opened to navigation on September 16, 2026. The principal ceremony took place at Madao, with linked activities at Nanning Port, Qinzhou Port, and the Xinfu and Qinzhou waterside integrated service areas. Four passenger routes opened simultaneously; these were distinct from the freight services inaugurated that day. Opening-day access was also controlled rather than unrestricted: Qinzhou Maritime Safety Administration’s notice imposed canal-wide traffic restrictions from 00:00 to 24:00 on September 16, admitting participating transport vessels, passenger vessels, official craft, and emergency boats while excluding unrelated traffic. This was a scheduled opening-day restriction, not evidence of a subsequent operational breakdown. (tradeinservices.mofcom.gov.cn)
Sinotrans documented the inaugural freight movements in both directions. The downstream vessel Hangtai 058 carried 60 standard containers containing 1,560 tonnes of cargo, including automotive parts and dolomite powder, assembled through Guigang for onward shipment from Qinzhou to Cambodia and Hainan. The upstream Guigang Yuhang 8001 carried nearly 5,000 tonnes of imported iron-ore fines for Nanning. Preparatory movements had included a Guigang–Qinzhou trial voyage by Hangtai 058 on September 6 and a Qinzhou sea-terminal berthing operation by Guigang Yuhang 8001 on September 8. Sinotrans’s separately reported reserve of approximately 200,000 tonnes represented organized prospective cargo, not tonnage already transported through the canal. (sinotrans.com)
Early post-opening reporting provided further evidence of actual movements without establishing annual performance. An October 9 CCTV report observed two vessels unloading limestone at Qinzhou Port’s Dalanping operating area after passage from the Xijiang basin through the canal. It also reported southbound automotive parts and heavy machinery and northbound imported bulk commodities during the first three weeks, including the National Day holiday. These observations documented operating logistics connections, but did not constitute a canal-wide cargo total or a measured average end-to-end transit time. The cost reductions and annual transport savings repeated in the same report were calculations, distinct from its observations of vessels and cargo handling. (gxnews.com.cn)
Transport connections and economic rationale
The canal adds an inland-waterway connection to the New International Land–Sea Trade Corridor, rather than replacing its railway-based routes. The corridor’s 2019 master plan identified three existing railway routes linking Chongqing and Chengdu with the Beibu Gulf ports through Guiyang, Huaihua, or Baise; it separately proposed investigating a canal between Guangxi’s Xijiang waterways and the coast. These connections perform different functions: railways carry freight between inland terminals and coastal ports, while the canal allows cargo originating on connected navigable rivers to approach the coast by vessel. Maritime services from the Beibu Gulf then provide the overseas leg. In November 2024, the Ministry of Transport’s Pearl River Administration described the canal and the Pearl River’s trunk and tributary waterways as a means of adding river–sea transport to a corridor previously dominated by rail–sea and road–sea movements. (ndrc.gov.cn)
The frequently cited distance saving uses the eastward waterway route through Guangzhou as its baseline. China Communications Construction Company stated on September 18, 2026, that the canal shortened inland-waterway travel by more than 560 kilometres compared with routes via Guangzhou Port. The comparison concerns cargo in the connected southwestern river hinterland that would otherwise travel east through the Pearl River system before reaching the sea; it is not a uniform reduction for every origin, destination, or transport mode. Pinglu Canal Group’s description of the network identifies links westward toward Nanning and the Zuo and You rivers, eastward along the Yu River, and northward through the Qian–Hongshui and Liu river systems. The geographical advantage is therefore particularly relevant to sea-bound traffic able to reach the canal through those waterways, rather than to freight already moving directly to the coast by rail. (en.ccccltd.cn)
Published cost figures are projections, not established operating savings. Reporting a September 7, 2026, Guangxi government press conference, the Ministry of Transport published estimates of an 18–30 per cent reduction in overall logistics costs and annual transport-expense savings exceeding 5 billion yuan. The stated comparison was with traditional export routes, alongside the shorter inland voyage and reduced sailing distances to major ASEAN ports. These figures describe the anticipated effect of diverting eligible traffic to the new route; they do not mean that every shipment receives the same discount. The announcement did not specify cargo-by-cargo rates, assumed annual diverted tonnage, or the calculation period. They consequently cannot be treated as audited annual savings or a measured return on the canal’s construction expenditure. (mot.gov.cn)
The intended trade connection is between the southwestern hinterland and Southeast Asia through the Beibu Gulf’s maritime network. Pinglu Canal Group presents this as a basis for linking supply chains across ASEAN, the Beibu Gulf Economic Zone, the Chengdu–Chongqing region, and the Guangdong–Hong Kong–Macao Greater Bay Area. Canal-side industrial development is a related but separate objective. A 2023 record published by Guangxi’s natural-resources department described Qinnan District’s proposed port-industrial clusters in light manufacturing and textiles, wood processing and furniture, new materials, and grain, oil, and food processing, together with warehousing, ship repair, and manufacturing near planned port facilities. These are documented development intentions: industrial-zone plans and projected supply-chain integration do not themselves establish changes in output, employment, or trade attributable to the canal after opening. (plyh.gx.cn)
Environmental assessment and ecological safeguards
The canal’s environmental impact assessment underwent technical review before Guangxi’s Department of Ecology and Environment accepted the report for administrative examination on June 7, 2022. Public notices accompanied the approval process, and completion of environmental approval was announced at a June 30 press conference. The framework distinguished anticipated environmental effects from measures intended to reduce them: assessment established risks before construction, mitigation specified protective works and management obligations, construction monitoring tracked disturbance, and operational monitoring was intended to test longer-term changes. Approval therefore did not itself demonstrate that the safeguards would be ecologically effective. (gx.people.com.cn)
Measures addressing habitat fragmentation extended beyond the navigable channel. The 2022 programme proposed reserving a corridor generally one kilometre wide on each bank, providing wildlife crossings in the watershed-crossing reach, and retaining 36 former river-channel sections or oxbow lakes as ecological refuge areas. At Qingnian, two planned fish passages were intended to reconnect the Qin River across the existing barrage; an artificial propagation and release station and fish stocking were proposed separately to compensate for fish losses. Passage facilities address movement between habitats, whereas propagation and release address fish numbers: neither measure alone establishes recovery of a self-sustaining population. (forestry.gov.cn)
By November 2025, the Ministry of Transport reported two fish passages at Qingnian with a combined length of approximately 480 metres. Their design combined a vertical-slot fishway for species including mud carp and redeye fish with an eel passage accommodating climbing aquatic animals, including eels and the local mitten crab. In September 2026, project engineer Chen Zhu reported that sonar monitoring since 2025 had recorded more than 76,000 upstream and 115,000 downstream fish movements, with more than ten fish species using the passages. These are reported observations of passage use, not estimates of distinct individuals or proof of population recovery; broader effectiveness requires evidence of species-specific passage success, seasonal use, recruitment and upstream–downstream population connectivity. (mot.gov.cn)
For coastal mangroves, the announced protection sequence was avoidance wherever possible, minimization of unavoidable occupation, transplantation, and compensatory restoration. The 2022 provisions required off-site restoration covering three times the occupied mangrove-wetland area, with five years of maintenance. This area multiplier was a restoration obligation, not a finding that newly planted stands immediately replaced mature habitat functions. In September 2026, Pinglu Canal Group engineering manager Qin Xiaofeng reported 9,572 transplanted plants and 275,000 plants established across 32.3 hectares of off-site restoration. Planting totals document implementation; survival, stand development and associated fauna are separate ecological outcomes. (forestry.gov.cn)
Mangrove monitoring was specified for construction and for at least five years of operation, with findings used to adjust construction methods, timing, controls and emergency arrangements. A marine-use safeguards document published in 2024 distinguished monitoring of existing stands from monitoring of restoration sites. Its indicators included mangrove growth and retained area, leaf photosynthetic capacity, sediment properties and deposition, water quality and hydrodynamics, intertidal bottom-dwelling animals, birds, pests and human disturbance. It also recorded intensified monitoring and additional suspended-solids measurements from March 2024. Together with the planned biodiversity observation stations, these measurements provide a basis for examining change; assessing longer-term habitat and water-environment outcomes requires repeated observations against pre-construction conditions and comparable unaffected sites, rather than planting areas or isolated species sightings alone. (forestry.gov.cn)
Land acquisition and effects on communities
The Ministry of Natural Resources approved the canal’s preliminary land-use examination on June 23, 2022, covering 2,689.27 hectares. This was a pre-examination figure, not a measurement of final land occupation or completion of acquisition. At the September 8, 2022 project briefing, Guangxi natural-resources deputy director Zheng Jiezhong explained that preparatory surveys had examined occupation of cultivated land and permanently protected basic farmland, with the proposed boundary adjusted to reduce such occupation. A separate approval issued on August 10 authorized advance land use for the initial works; documentation for the full route still required cadastral boundary surveys, acquisition and demolition preparations, and arrangements to offset cultivated-land occupation. (plyhbwg.gxrb.com.cn)
Subsequent approvals and local notices dealt with specific sections rather than simply implementing the preliminary area as a single acquisition. Guangxi’s official land-acquisition disclosure system records approval dated May 11, 2023, under document Ziranzi Han [2023] No. 215 for the Qinzhou section, with an acquisition area of 1,634.9024 hectares. The record includes Qinbei District’s September 2022 preliminary acquisition notices, an October 15 compensation-and-resettlement scheme announcement, a November hearing notification, and a June 17, 2023 acquisition announcement. These documents distinguish notification, compensation planning, approval, and implementation; the sectional area is not a replacement figure for the entire canal’s final footprint. (dnr.gxzf.gov.cn)
Physical resettlement proceeded alongside land acquisition and demolition. A legislative oversight account published in December 2023 recorded 21 planned resettlement sites, of which 17 were expected to be used under the implementation arrangements then current. Land handover had been completed for those sites, while grading had been completed at 11: these were construction milestones, not evidence that all replacement housing was occupied. Compensation and land-tenure questions also generated administrative casework. On May 30, 2023, Guangxi petition authorities visited Tunli village in Xinfu, Hengzhou, a whole-village relocation location, to examine disputes concerning acquisition, demolition, resettlement compensation, and land ownership. A dedicated canal-project reception window operated at the township petition office. (bjrd.gov.cn)
In the coastal construction area, clearance affected aquaculture installations as well as terrestrial property. The December 2023 legislative account reported that floating rafts, submerged culture structures, enclosure nets, and other obstructions within the construction channel had largely been removed, permitting dredging vessels to enter the work area. It separately recorded preparation of an oyster germplasm-resource protection and compensation scheme, together with sea-use justification, environmental assessment, and social-risk assessment for the natural oyster-resource protection site. Clearance of the navigation corridor therefore did not itself establish completion of oyster compensation or demonstrate successful protection of the resource. (bjrd.gov.cn)
Cross-channel works addressed a different community requirement: maintaining connections between settlements, farmland, and markets. In an August 30, 2024 account, Guangxi’s legislature reported that local representative Li Qiji’s proposal helped secure inclusion of the approximately 200-million-yuan Qingsong Bridge at Jiuzhou. Its stated purpose was to avoid an approximately 20-kilometre market-access detour affecting more than 30,000 residents across five village administrative areas; this was a projected benefit, not a measured travel-time result. Later reporting described temporary traffic bridges during the simultaneous replacement of six urban Qinzhou bridges. At the Qinjiang Bridge temporary crossing, approach-road widening and junction alterations were needed because the original connection narrowed to five metres. Maintaining local access thus required functioning road connections as well as a bridge span. (gxrd.gov.cn)
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