24 Transport megaprojects and PPP

Chapter 24 of 60 in the Bangladesh 2036 research base. Contents of the series.

Thesis

The decade that built the bridges and the metro is now the decade that must pay for them, and the stored record shows the payment question arriving on schedule: the Padma Bridge earned 915.20 crore BDT of tolls on 7.35 million vehicle crossings in FY26 [BBA 2026], vehicle crossings compounding at roughly 8.8 percent a year (5.71 million FY23 to 7.35 million FY26) since opening while toll revenue compounds more slowly at roughly 4.7 percent a year, while the railway that should carry the corridor's freight runs an operating ratio of 236.27 percent [Bangladesh Railway 2023] and the metro, the elevated expressway and the tunnel opened with no stored ridership or toll series. The claim this chapter defends is that the megaproject decade was a capital budget success and a returns question: the assets exist, the traffic on the measured asset grows, and the debt service, the maintenance bill and the missed rail-freight integration are the three claims that arrive together inside the window chapter 15's fiscal arithmetic prices. The public private partnership model, the instrument the outline names, could not be confirmed as a pipeline, and its absence from the record is the finding.

Where Bangladesh stands

The Padma Bridge is the one megaproject with a full measured account. Opened in June 2022 [BBA 2026], the bridge collected 798.39 crore BDT of tolls in its first full fiscal year, 857.24 in FY24, 895.10 in FY25 and 915.20 in FY26 [BBA 2026], on vehicle crossings that grew from 5.71 million in FY23 to 7.35 million in FY26 [BBA 2026]. The revenue trend is the proof of the demand case: traffic compounds because the bridge removed the ferry queue that priced the southwest's connection to the capital, and the toll book is on a path to cross 1,000 crore within the window on the stored slope. The Jamuna Bridge, the older crossing, collected 692.15 crore in FY24 from 560.28 in FY20 [BBA 2026], and the authority's combined accounts show 1,874.03 crore of service revenue and 914.42 crore of operating profit in FY23 [BBA 2026], the measured proof that crossing revenue can carry operating costs at scale. The rail link across the same bridge opened after the road span, and its traffic and revenue could not be confirmed here, the Bangladesh Railway tables carrying the aggregate passenger record only.

The railway's passenger record frames the metro's context. Passengers carried fell from 92.71 million in FY19 to 63.99 in the pandemic year, recovered to 73.59 million in FY23 [Bangladesh Railway 2023], still below the 2019 peak, and the route network has not grown proportionally to the megaproject investment the sector absorbed. The Dhaka Metro's MRT line 6 opened in December 2022 with daily ridership claims the operator publishes; no ridership, fare or cost series is stored, the Dhaka Mass Transit Company Limited reports being the resolving source, so the metro's account in this chapter is a claims record with unconfirmed numbers, in contrast to the BBA bridges whose accounts are stored. The elevated expressway opened in 2023 under a private concession, and its toll revenue could not be confirmed here, the concession company and the Road Transport and Highways Division being the resolving sources. The Karnaphuli tunnel, which stood at 98 percent physical and 91.51 percent financial progress in June 2023 and opened four months later in October 2023 [BBA 2023], carries tolls that are likewise unconfirmed.

The cost side is where the megaproject decade's bill lives. The FY26 development programme allocates 58,973.39 crore BDT to transport and communication across 194 projects, 25.64 percent of the NEC-approved 230,000.00 crore ADP and 24.71 percent of the 238,695.64 crore total once own-fund financing is added [Planning Commission ADP 2025, ADP at a glance table], the largest sectoral claim, and the committed-cost overhang is the pattern chapter 10 documents for the Power Division: allocations thin against cumulative commitments, completion dates slipping, and the unpaid tail of each project converting into future debt service through the ERD account chapter 04 carries. The project-level unit costs against regional benchmarks, per kilometre of metro, per lane-kilometre of expressway, could not be confirmed, the IMED project evaluations being the resolving source; the qualitative record, unit costs above Vietnamese and Indian comparators on several megaprojects, is consistent in the international literature and marked here as claim. The external debt service chapter 04 measures at 3,371.6 million USD in FY24 [ERD 2024] carries the megaproject borrowing inside its aggregate, and the project-level split could not be confirmed here.

The PPP record is the outline's instrument question, and the stored answer is thin. The PPP Authority's pipeline of approved projects, awarded contracts and financial closes is not stored as a series, the PPP Authority publications being the resolving sources; the elevated expressway is the one large transport PPP that reached operation, and its experience, tolls below projection in early operation, could not be confirmed here. The two bridges, both public-funded, out-earn the PPP narrative's premise that public operation cannot run assets well, and the metro, publicly built and operated, carries no published fare-recovery ratio here. The chapter treats the PPP question as empirical: the instrument is not the finding, the cash flow is.

The southwest dividend is the Padma Bridge's regional economics, and the stored record prices its demand side directly. The bridge converted a ferry queue into a 20-minute crossing, and the vehicle count's compounding [BBA 2026] is the revealed demand: 7.35 million crossings in FY26 is freight, buses and cars whose previous price was hours of waiting. The regional development effects, land prices in the southwest districts, factory relocation, the tourist flow to the Sunderbans leg chapter 56 carries, are the second-order returns the stored record does not yet measure, the district income tables chapter 14 carries being the resolving source at the next survey round. The bridge's toll elasticity is the pricing question: tariffs were revised during the period, and the traffic growth through the revision [BBA 2026] suggests inelastic demand at current levels, the condition the securitisation upside needs.

Mechanism

The mechanism that built the megaprojects was the chapter 04 and chapter 10 machine at scale: ADP allocations concentrated on a few signatures, foreign credit on concessional and semi-concessional terms for the rail and power components, domestic bank financing for the local share, and a completion politics that rewarded opening over reconciling. The 25.64 percent transport share of the FY26 ADP [Planning Commission ADP 2025, ADP at a glance table] is the machine's ongoing claim, and the committed-cost overhang the project tables carry is its arithmetic signature: an ADP whose head is a few large projects, chapter 04's top-ten finding, inside a table of 1,356 projects total [Planning Commission ADP 2025, fiscal year 2025-26]. The mechanism's virtue was delivery: the Padma Bridge, the metro, the expressway and the tunnel all opened. The mechanism's cost is threefold: the debt service tail, the maintenance deferred, and the opportunity cost of the social-sector share, 7.89 percent of the NEC-approved ADP for health, 18,148.14 crore BDT against transport's 58,973.39 [Planning Commission ADP 2025, ADP at a glance table].

The returns mechanism is the part this chapter's stored record can actually price, and the Padma Bridge is its template. A crossing asset with inelastic demand compounds revenue with the vehicle fleet, though the two series diverge: vehicle crossings [BBA 2026] compound at roughly 8.8 percent a year, doubling in about eight years, while toll revenue [BBA 2026] compounds slower at roughly 4.7 percent a year and would take about fifteen years to double, the gap a falling toll yield per vehicle the return calculation must price, and the asset's economic return, computed against its cost, is the megaproject defence in one number. The metro's return case is different in kind: urban mass transit earns fares that cover operations and never the capital, and its real return is the congestion, air quality and land-value effects chapter 50 measures, which is why the fare-recovery ratio and the ridership, both not established here, are the numbers that decide whether the metro is a service or a monument.

The procurement and cost mechanism is where the megaproject model earned its criticism, and the 2025 procurement rewrite chapter 12 documents [BPPA 2025] is the reform aimed at it. The beneficial-owner disclosure and the debarment board bite exactly at the contract-award layer where the megaproject costs accumulated, and the e-procurement mandate makes the award record auditable in a way the mega-decades were not. The stored record carries the rules, not their application to the ongoing transport portfolio, so the reform's test is the next megaproject's unit cost against the benchmarks this chapter marks as not established. The IMED evaluation function, which should be the state's own cost auditor, reports evaluations whose publication record could not be confirmed here, the IMED documents being the resolving source.

The integration mechanism is the missed dividend. The Padma rail link, the metro's feeder buses, the tunnel's connection to the industrial belt: each megaproject was built as a piece, and the pieces connect through institutional coordination whose record is thin. The freight case is sharpest: chapter 23's 4.41 million tonnes of rail freight [Bangladesh Railway 2023] against a 123.24 million tonne port flow [CPA 2024] persists because the new rail capacity, the bridges and the double lines, arrives without the freight pricing and terminal ownership reform that would fill it. The megaproject decade built the arteries; the decade ahead decides whether blood moves through them.

The decade ahead

The forces the FY36 scenarios assume are four. First, the revenue ramp: the Padma toll path [BBA 2026] and the metro fare base, once published, are the measured returns the debt service tail meets. Second, the maintenance cycle: bridges and metro systems age on schedules, and the maintenance share of the transport ADP, not confirmed here, is the number that decides whether the assets compound or decay. Third, the debt service wall: chapter 42's external debt account carries the megaproject borrowing's maturity profile, and the ERD interest line that nearly tripled in two years [ERD 2024] is the leading edge. Fourth, the PPP conversion: the pipeline either publishes, with awarded contracts and financial closes as a series, or the instrument stays rhetorical.

No stored ridership, fare or PPP projection targeting 2036 exists in the data available to this chapter; all such figures are not established, and the named authors whose work would resolve them are the DMTCL reports, the PPP Authority's annual pipeline documents, and the Asian Development Bank's transport assessments, not confirmed here: no series in the data lake carries an ADB transport figure, and the one it stores under the ADB name is an empty WDI GDP-growth mirror, not an ADB Outlook transport number. The decision points: publish the metro and expressway accounts, price the rail freight that fills the new links, and convert the PPP authority from pipeline curator to transaction executioner.

The route geometry question is the last layer. The megaproject decade built north-south crossings and one east-west metro line, while the traffic the Dhaka account chapter 50 measures runs on a road network whose expansion is a lane-addition treadmill: the elevated expressway's opening tolls, not confirmed here, are the natural experiment, and the international record on induced demand, that new lanes fill within years, is the prior the chapter carries. The rail alternative, the mass transit expansions MRT-1 and MRT-5 under preparation whose status could not be confirmed here, are the instruments that change the geometry rather than add to it, and their financing is the PPP question's real test: no urban rail anywhere recovers its capital from fares, so the instrument is availability payments, a fiscal commitment the budget chapter 04 must price as honestly as it prices the ADP.

Risks and upside

Risks. First, the maintenance deferment: assets opened in the megaproject decade enter their first heavy-maintenance cycle mid-window, and the revealing indicator is the maintenance share of the transport ADP, not confirmed here. Second, the debt tail: the ERD service line at 3,371.6 million USD [ERD 2024] compounding through the graduation terms chapter 02 dates, with the megaproject borrowings inside it, meets the fiscal constraint chapter 04 prices; the revealing indicator is the interest component's path. Third, the returns opacity: if the metro, expressway and tunnel accounts stay unpublished, the megaproject defence rests on one bridge's books while the contested cases hide, and the revealing indicator is the publication of the operators' accounts.

Upside. First, the Padma template: a state asset whose crossing volume compounds at roughly 8.8 percent a year [BBA 2026] is the financeable model for the next crossings, and securitising the toll stream, itself compounding slower at roughly 4.7 percent, is the capital market test chapter 07 sets. Second, the freight fill: the new rail links, priced for freight, convert chapter 23's modal split and cut the 6.73 billion freight bill [IMF BOP 2023]. Third, the congestion dividend: the metro's effect on Dhaka's traffic, chapter 50's congestion cost, is the megaproject return that never appears in a fare account but lands in productivity.

The PPP record deserves its caveat stated plainly. The two operating bridges are public assets earning measured revenue [BBA 2026], the metro is public, and the one operating transport PPP's accounts are unpublished here; a reader who concludes that the PPP instrument underperformed is reading the same absence of evidence the chapter is, and the honest summary is that Bangladesh's transport megaprojects were financed and delivered on the public balance sheet with external credit, leaving the PPP instrument tested only at the margin.

What to watch

1. Padma Bridge tolls. Current value 915.20 crore BDT in FY26 [BBA 2026]. Threshold: crossing 1,200 crore with the rail link operating marks the integration turn; a fall marks the traffic ceiling binding.
2. Padma Bridge crossings. Current value 7.35 million vehicles in FY26 [BBA 2026]. Threshold: growth below 5 percent a year marks the corridor maturing; sustained double-digit growth marks the demand case extending.
3. Railway passengers. Current value 73.59 million in FY23 [Bangladesh Railway 2023]. Threshold: recovery above the 92.71 million FY19 peak marks the rail turn; continued decline marks the modal loss deepening.
4. Metro ridership and fare recovery. Current values not confirmed here, DMTCL reports the resolving source. Threshold: publication of the accounts is the first threshold; a fare-recovery ratio above 50 percent marks the operational-viability regime.
5. PPP pipeline. Current status not confirmed here, the PPP Authority publications the resolving source. Threshold: awarded transport PPPs above 2 billion USD a year marks the instrument turning; a second decade without financial closes confirms the public-balance-sheet model holding.

Sources used

[BBA 2026] Bangladesh Bridge Authority toll, traffic and account series via bdpolicy.db, series: bba_padma_bridge_toll_crore_bdt, bba_padma_bridge_vehicles_count, bba_jamuna_bridge_toll_crore_bdt, bba_service_revenue_crore_bdt, bba_operating_profit_crore_bdt. [Bangladesh Railway 2023] Bangladesh Railway statistics via bdpolicy.db, series: br_passengers_carried_total_thousand, br_operating_ratio_pct, br_freight_tonnes_total_thousand. [Planning Commission ADP 2025] Annual Development Programme 2025-2026, Programming Division, Bangladesh Planning Commission, June 2025, ADP at a glance sector table: transport and communication 58,973.39 crore BDT (25.64 percent) and health 18,148.14 crore BDT (7.89 percent) on the 230,000.00 crore approved programme, https://adp.plancomm.gov.bd/book/2025-2026-ADP-BOOK.pdf, accessed 6 September 2026. The same tag covers the revised FY2025-26 project table via bdpolicy.db adp_projects, 1,356 rows, named as the revised programme wherever it is used. [ERD 2024] Economic Relations Division debt service series via bdpolicy.db, series: erd_debt_service_total_usd_mn, erd_debt_service_interest_usd_mn. [CPA 2024] Chattogram Port Authority cargo statistics via bdpolicy.db, series: cpa_total_cargo_handled_million_mt, cited from chapter 23. [IMF BOP 2023] IMF Balance of Payments via the trade/bd_bop_flows parquet, item 121 debit, calendar 2023, 6,729.98 million USD, cited from chapter 23. [BBA 2023] Bangladesh Bridge Authority tunnel completion reporting (ocr_text/bba_bridge/auditors_report_financial_statements_2022_23.txt via chapter 10's verification), cited from chapter 10 and the timeline. [Not confirmed, chapter 24] Metro ridership and fare recovery, elevated expressway tolls, tunnel tolls, Padma rail link traffic, PPP pipeline and awards, unit costs against benchmarks, maintenance share, ADB transport assessments (no local series); resolving sources DMTCL, PPP Authority, IMED, Road Transport and Highways Division, ADB.

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Verified line by line against primary sources: 24 claims checked, 5 corrected.

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