Land Reclamation

<h1>Land Reclamation</h1> <p>Land reclamation has enlarged Singapore's coast to create space for homes, the central business district, Changi Airport, Tuas Port, Jurong Island, reservoirs, recreation, and military training. National Library research places the early-colonial land area at roughly 578 km²; SingStat measured 744.3 km² at December 2025, implying growth of about 29% across two centuries, although historical baselines and modern cadastral methods are not perfectly comparable (<a href="https://biblioasia.nlb.gov.sg/all-sections/vol-13-issue-1-apr-jun-2017-land-from-sand/">NLB, accessed Aug 2026</a>; <a href="https://www.singstat.gov.sg/find-data/search-by-theme/society/environment/latest-data">SingStat, accessed Aug 2026</a>). Reclamation is a long-term land strategy, not an unlimited escape from scarcity.</p> <h2>Historical expansion</h2> <p>Singapore's first colonial reclamation reshaped the Singapore River bank around Boat Quay in the 1820s. Later works filled Telok Ayer Basin and extended commercial waterfronts. After self-government, reclamation became national-scale infrastructure. HDB's East Coast project began with a Bedok pilot in 1963 and proceeded from 1966 through seven phases, ultimately adding about 1,525 hectares and the coastline now occupied by Marine Parade, East Coast Park, and expressway infrastructure (<a href="https://biblioasia.nlb.gov.sg/all-sections/vol-13-issue-1-apr-jun-2017-land-from-sand/">NLB, accessed Aug 2026</a>).</p> <p>Other major projects produced Marina Bay and its reservoir, expanded Changi for the airport, combined seven southern islands into Jurong Island, and pushed the industrial-port frontier westward at Tuas. Reclamation changes more than area: it can join islands, move the shoreline kilometres seaward, create reservoirs, and reorganise transport and economic geography. The Foreshores Act also provides the legal framework for declaring reclaimed land State land; a February 2026 Government Gazette proclamation applied that framework to two reclaimed parcels (<a href="https://assets.egazette.gov.sg/2026/Government%20Gazette/Notices%20under%20other%20Acts/0897.pdf">Singapore Government Gazette, 13 February 2026</a>).</p> <h2>Engineering methods</h2> <p>Traditional reclamation encloses a sea area with a perimeter bund, fills it—historically with large quantities of sand—and improves the underlying soft marine clay until the ground can safely support development. Deep fills may settle for years; engineers use methods such as surcharge loading and vertical drains to accelerate consolidation. The exact design depends on water depth, soil, waves, navigation, intended load, and environmental constraints.</p> <p>Singapore's first polder at north-west Pulau Tekong marked a different approach. A dike encloses land below mean sea level while pumps manage internal water levels, reducing the amount of fill needed. Main construction completed in 2025 created about 800 hectares for military training and used roughly half the sand of traditional above-sea-level reclamation, according to PUB (<a href="https://www.pub.gov.sg/Resources/News-Room/PressReleases/2025/09/Tekong-Polder">PUB, accessed Aug 2026</a>). Polders trade fill savings for permanent dike, drainage, pumping, monitoring, and flood-protection obligations.</p> <h2>Planning, approval, and monitoring</h2> <p>Reclamation is both an engineering project and a public-land and planning decision. Under the current Foreshores Act, the Government has authority to construct works and reclaim foreshore or seabed; the President may then proclaim reclaimed land to be State land, after which it is subject to the State Lands Act (<a href="https://sso.agc.gov.sg/Act/FA1920">Foreshores Act 1920, current version accessed Aug 2026</a>). A Gazette proclamation is therefore a legal land-status step, not evidence that a whole master-planned district is already approved or built.</p> <p>URA describes environmental impact assessment as part of the planning evaluation for projects whose effects may include traffic, public health, heritage, and the environment. Studies identify potential impacts and proposed mitigation; for reclamation, an environmental management and monitoring plan can specify mitigation measures, monitoring requirements, and agency or project responsibilities (<a href="https://www.ura.gov.sg/land-planning/planning-strategies/greenery-and-heritage/environmental-impact-assessment/">URA Environmental Impact Assessment, accessed Aug 2026</a>). The Long Island preparatory-works announcement illustrates the staged approach: HDB was appointed reclamation agent for preparatory works, with measures based on an environmental study, while the larger project would be shaped over decades through further planning and stakeholder engagement (<a href="https://www.ura.gov.sg/news/media/pr26-50/">URA, 29 July 2026</a>). This separates statutory land vesting, environmental review, preparatory works, and final land-use decisions rather than treating “reclamation” as one approval event.</p> <h2>Sand, ecology, and regional effects</h2> <p>Reclamation's material and ecological costs extend beyond the new shoreline. Singapore imports sand commercially and says importers must comply with source-country laws, export permits, and environmental approvals (<a href="https://www.mpa.gov.sg/docs/mpalibraries/circulars-and-notices/request-for-publication-of-clarification-to-l-usine-nouvelle-article-singapour-les-ambitions-du-futur-megaport-%285-may-2025%29">MPA, accessed Aug 2026</a>). Export restrictions by neighbours have nevertheless made supply a strategic and diplomatic issue, encouraging stockpiles, source diversification, more efficient designs, and research into alternative fill.</p> <p>At home, reclamation buries seabed and intertidal habitat, changes currents and sediment, and can affect coral reefs, seagrass, mangroves, fisheries, and water quality. A peer-reviewed mapping study found that Singapore's intertidal coral-reef flats and sand/mudflats declined substantially between 1993 and 2011, largely in association with coastal development (<a href="https://www.sciencedirect.com/science/article/pii/S096456911400355X">Lai et al., 2015</a>). Environmental studies, phased works, silt controls, habitat avoidance, and ecological engineering can mitigate impacts but do not make habitat conversion impact-free.</p> <h2>Critical perspectives: reclamation and climate adaptation</h2> <p>Future reclamation is increasingly integrated with coastal protection. Long Island, a concept off the East Coast, is intended to defend a low-lying shoreline from sea-level rise while potentially creating a reservoir, recreation, and land for later national needs. As at August 2026, technical studies and preparatory works were progressing, but the eventual land profile and main reclamation schedule were not final; URA explicitly distinguishes preparatory areas from the future island shape (<a href="https://www.ura.gov.sg/land-planning/planning-strategies/urban-resilience/long-island/">URA, accessed Aug 2026</a>).</p> <p>Building new land higher can form a coastal barrier, but it shifts risks and creates assets that must be protected for generations. Future decisions therefore join <a href="/en/knowledge/article/sgkb.geography-urban-planning.physical-geography-and-climate">sea-level and rainfall projections</a>, engineering safety, nature, financing, sand supply, navigation, and land demand. Reclamation remains one tool alongside sea walls, tidal gates, polders, drainage upgrades, redevelopment, underground space, and more intensive use of existing land under the <a href="/en/knowledge/article/sgkb.geography-urban-planning.ura-and-master-plan">Master Plan</a>.</p>

简介

土地填海

土地填海扩大了新加坡的海岸线,创造空间用于住宅、中央商务区、樟宜机场、大士港、裕廊岛、水库、休闲活动和军事训练。国家图书馆的研究估计,殖民早期土地面积约为 578 km²;新加坡统计局测得 744.3 km²(截至 2025 年十二月),这意味着两个世纪间增长约 29%,不过历史基准与现代地籍测量方法并非完全可比(NLB,查阅于 2026 年八月;新加坡统计局,查阅于 2026 年八月)。填海是一项长期土地战略,并非摆脱土地稀缺的无限手段。

历史扩张

新加坡最早的殖民时期填海工程于十九世纪二十年代重塑了驳船码头一带的新加坡河岸。后来的工程填平了直落亚逸湾盆地,并延伸商业海滨。自治后,填海成为国家级基础设施。建屋发展局(HDB)的东海岸项目于 1963 年从勿洛试点开始,并从 1966 年起分七个阶段推进,最终增加约 1,525 公顷土地,形成现今由马林百列、东海岸公园和高速公路设施占据的海岸线(NLB,查阅于 2026 年八月)。

其他大型项目建成了滨海湾及其水库、为机场扩建了樟宜、将七个南部岛屿合并为裕廊岛,并将工业港口前沿向西推进至大士。填海改变的不只是面积:它可以连接岛屿、将海岸线向海上推进数公里、建造水库,并重组交通和经济地理。前滨法也为宣布填海土地为国家土地提供法律框架;2026 年二月的一份政府宪报公告将该框架适用于两块填海地(新加坡政府宪报,13 二月 2026)。

工程方法

传统填海会用周边堤坝围住海域,再填入材料——历史上大量使用沙——并加固下方的软海相黏土,直到地面能够安全承载开发。深层填土可能需要多年沉降;工程师会使用超载预压和竖向排水等方法加快固结。具体设计取决于水深、土质、海浪、航行、预期荷载和环境限制。

新加坡首个围垦地位于西北部德光岛,采用了不同的方法。堤坝围住平均海平面以下的土地,并由水泵管理内部水位,从而减少所需填土量。据公用事业局(PUB)称,主体工程于 2025 年完成,创造了约 800 公顷的军事训练用地,使用的沙量约为传统海平面以上填海的一半(PUB,查阅于 2026 年八月)。圩田节省了填土,但需要持续承担堤坝、排水、抽水、监测和防洪义务。

规划、批准与监测

填海既是工程项目,也是公共土地和规划决策。根据现行《前滨法》,政府有权兴建工程并填造前滨或海床;随后总统可宣布填海土地为国家土地,此后该土地受《国家土地法》管辖(《1920 年前滨法》,查阅于 2026 年八月的现行版本)。因此,宪报公告是土地法律状态的一项步骤,并不证明整个总体规划区已获批或建成。

市区重建局(URA)称,对于可能影响交通、公众健康、遗产和环境的项目,环境影响评估是规划评估的一部分。研究会确定潜在影响和拟议的缓解措施;对填海项目而言,环境管理与监测计划可以明确缓解措施、监测要求以及机构或项目责任(URA 环境影响评估,查阅于 2026 年八月)。长岛前期工程公告体现了分阶段做法:HDB 被任命为前期工程的填海代理,并依据环境研究采取措施;更大的项目则将通过未来数十年的进一步规划和利益相关方参与逐步成形(URA,29 七月 2026)。这一区分了法定土地归属、环境审查、前期工程和最终土地用途决策,而不是将“填海”视为一次性审批事件。

沙源、生态与区域影响

填海的材料和生态成本会延伸到新海岸线之外。新加坡通过商业渠道进口沙,并表示进口商必须遵守来源国法律、出口许可证和环境审批要求(MPA,查阅于 2026 年八月)。邻国的出口限制仍使供应成为战略和外交议题,推动储备、来源多元化、更高效的设计以及替代填料研究。

在国内,填海会掩埋海床和潮间带栖息地,改变洋流和沉积物,并可能影响珊瑚礁、海草床、红树林、渔业和水质。一项经同行评审的制图研究发现,新加坡的潮间带珊瑚礁滩和沙滩/泥滩在 1993 年至 2011 年间大幅减少,主要与沿海开发有关(Lai 等人,2015 年)。环境研究、分阶段施工、泥沙控制、避开栖息地和生态工程可以减轻影响,但栖息地转换仍会产生影响。

批判性视角:填海与气候适应

未来填海越来越多地与海岸防护结合。长岛是东海岸外的一项概念规划,旨在保护低洼海岸线免受海平面上升影响,同时可能创造水库、休闲空间和供未来国家需求使用的土地。截至 2026 年八月,技术研究和前期工程正在推进,但最终土地形态和主体填海时间表尚未确定;URA 明确区分了前期工程区域与未来岛屿形态(URA,查阅于 2026 年八月)。

提高新土地的标高可以形成海岸屏障,但也会转移风险,并产生需要保护数代人的资产。未来决策因此需要综合考虑海平面和降雨预测、工程安全、自然环境、融资、沙源供应、航行和土地需求。填海仍是多种工具之一,其他工具包括海堤、潮汐闸门、圩田、排水系统升级、重建、地下空间,以及依据总体规划更集约地利用现有土地。