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- 1DEMAND No. 21ப.1
Demand No.21 identifies this department in the State Budget.
- 2HIGHWAYS AND MINOR PORTSப.1
One dept covers BOTH roads and minor ports. Don't confuse with PWD (Water Resources/Buildings).
- 3AADHAV ARJUNAப.1
Minister for Public Works and Sports Development holds this portfolio.
- 4National Highways provide connectivity betweenப.8
NH = inter-State links at national level. Learn all 4 road definitions as one set.
- 5provide key road connectivity within the Stateப.9
SH = key connectivity WITHIN the State.
- 6Major District Roads connect importantப.9
MDR = links production centres, markets and urban areas...
- 7production centres, markets and urban areas withப.9
...upward to the higher-order road network.
- 8connect rural areas with other regionsப.9
ODR = rural connectivity. Largest network by length (45,139 km).
- 9Classification of Roads … 76858அட்டவணைப.9
TABLE 1.1 — learn this whole table. NH 6,807 (NHAI 6,009 + State 798); SH 12,875; MDR 12,037; ODR 45,139.
- 10total road length ofப.10
The headline figure of the whole policy note.
- 1176,858 kmப.10
TOTAL road length INCLUDING NH = 76,858 km. Excluding NH it is 70,051 km — the pair is a classic trap.
- 121,069 kmப.11
TN coastline = 1,069 km as stated here (other sources cite ~1,076 km).
- 13three Major Ports under theப.11
3 Major Ports = Union Govt control. Contrast with 17 Minor Ports = State control.
- 1417 notified Minor Portsப.11
17 notified Minor Ports under Govt of Tamil Nadu.
- 15Types of bridges … 149633அட்டவணைப.11
TABLE 1.3 — 1,49,633 structures. Culverts 1,39,664 dominate; Major bridges 1,047; Grade separators 77.
- 16Tamil Nadu Maritime Board is responsibleப.12
TNMB is the authority for administration, management and development of Minor Ports.
- 17separate Department in 1946ப.13
1946 — Highways separated from PWD.
- 18created in 1996ப.13
1996 — separate Secretary to Government post created.
- 19Major Ports … Koodankulamஅட்டவணைப.13
TABLE 1.4 — 3 Major Ports (Chennai, Kamarajar, VOC) + 6 Govt Minor Ports + captive ports. Learn the 6 Govt ports.
- 20renamed as the Highways and Minor Ports Department in 2008ப.14
2008 — renamed 'Highways and Minor Ports' when Minor Ports came under it. Sequence: 1946 > 1996 > 2008.
- 21four regional Construction and Maintenanceப.14
Execution wings reorganised into 4 regional C&M wings.
- 22Chennai, Tiruchirappalli, Madurai and Coimbatoreப.14
The 4 regional headquarters.
- 2315.06.2026ப.14
Reorganised structure effective 15.06.2026 — a current-affairs style date.
- 24Tamil Nadu State Highways Authority Act, 2024ப.21
TANSHA created by Act of 2024 — the newest institution here. PPP-focused.