A great dam on the Tapi river
The Ukai Dam is one of the largest dams in Gujarat — a massive earthen-and-masonry structure built across the Tapi (Tapti) river in the forested country of Tapi district, holding back the vast reservoir known as Vallabh Sagar. Completed in the early 1970s, Ukai is a major multipurpose project — providing irrigation to a large area of south Gujarat, generating hydroelectric power, and supplying water to the region.
The reservoir it creates, Vallabh Sagar, is one of the largest in the state, a great expanse of water stretching back into the forested hills and the tribal country of the upper Tapi basin. The scale of the dam and the reservoir is the great impression: the vast sheet of water, the forested shores, the big skies, and the engineering of one of the state’s most important water projects. When the reservoir is full after the monsoon, the landscape of water and forest is genuinely impressive.
For the visitor, Ukai offers a destination of scale and landscape — the great dam, the vast reservoir, and the surrounding forested country of one of Gujarat’s most heavily wooded districts. A major dam and reservoir, with viewing areas around the water; it is at its best after the monsoon and in winter.
Ukai Dam reservoir. Source: Wikimedia Commons.
Damming the Tapi, at scale
Ukai reservoir. Wikimedia Commons.
The great Ukai Dam is completed across the Tapi river, holding back the vast Vallabh Sagar reservoir.
A major multipurpose project delivering irrigation and hydroelectric power to south Gujarat.
The dam creates Vallabh Sagar, one of the largest reservoirs in the state, reaching into forested hills.
Ukai stands as a landmark of scale — a great sheet of water in the forested heart of Tapi.
Reasons to make the time
Reservoir
Vast Vallabh Sagar.
Landscape
Water and forest.
Power
Hydroelectric dam.
Scale
Big skies and water.
Forest
Wooded shores.
Tapi heart
Forested country.
What to look for inside
THE DAMUkai
A great structure.
VALLABH SAGARReservoir
A sea of water.
LANDSCAPEForested shores
Water and forest together.
SCALEBig skies
A landscape of great scale.
MONSOONFull water
Fullest after the rains.
TAPIRiver country
The forested upper basin.
How to spend an hour or two
See the great dam
One of Gujarat's largest dams stretches across the Tapi — take in the scale of the engineering.
View Vallabh Sagar
The vast reservoir spreads out behind the dam, a great sheet of water reaching into the hills.
Take in the scale
Water and forest meet under big skies — the impression is one of great openness.
Visit after the monsoon
When the reservoir is full after the rains, the landscape of water and forest is at its best.
Watch the sunset
The light over the reservoir at dusk is the quietest, most rewarding hour.
Explore the forest country
The surrounding forested hills of Tapi district are among Gujarat's most heavily wooded.
Ukai reservoir. Wikimedia Commons.
A major multipurpose dam
The Ukai Dam, completed in the early 1970s across the Tapi river, is one of the largest dams in Gujarat — a major multipurpose project providing irrigation, hydroelectric power and water to south Gujarat.
It holds back Vallabh Sagar, one of the state’s largest reservoirs, a vast expanse of water stretching into the forested hills of the upper Tapi basin. A major dam and reservoir, with viewing areas around the water; it is at its best after the monsoon and in winter.
The rest of the district is covered in our Tapi travel guide.
One of Gujarat’s largest dams, on the Tapi river
Holds back the vast Vallabh Sagar reservoir
A multipurpose project — irrigation, power, water
A landscape of great scale in forested Tapi
When to go
Cool and clear — ideal. Comfortable all day and perfect for taking in the reservoir and forest.
Forests, falls and full water. The reservoir fills and the surrounding hills turn green.
Hot; early morning best. Still doable, but come right at dawn to beat the heat.
⏰ Winter is ideal; the monsoon fills the Ukai reservoir and greens the forests.
Timings & entry
- Winter is the ideal window, cool and clear
- The monsoon fills the reservoir and greens the forest
- Summer is hot — visit in the early morning
- Allow 1–2 hours around the water
- A dam and reservoir landscape with open viewing areas
- No formal ticketing for the surrounds
- Best experienced after the monsoon and in winter
- Carry water and sun protection
Getting there
By Air
The nearest airport is at Surat, roughly 70 km away, with flights from across India.
By Rail
Vyara and Songadh railway stations are the closest, on the south Gujarat network.
By Road
Reach Ukai by road from Surat via the national highway, through the forested Tapi country.
Shooting Ukai
MONSOON & WINTER FRIENDLY
Vast water, forested shores and big skies over the reservoir
Best light
Come at sunrise or sunset, when the low sun rakes across the reservoir and the forested shores.
What to shoot
The great dam wall, the vast sheet of Vallabh Sagar, and the wooded hills reflected in the water.
After the rains
Visit after the monsoon for the fullest water and the greenest forest country.
Gear tip
A wide lens captures the scale of the reservoir; bring a longer lens for the forested far shore.
Know before you go
More to see close by
Tapti Mata Ghats
Riverside worship of the holy Tapi
4Ukai Sunset
Golden light spilling across the great reservoir
Tapi River
The Tapi River is one of the larger rivers running across south Gujarat, and it gives…
1Gaumukh Spring
A sacred natural spring tucked into the forest
Gaumukh Mahadev
A Shiva shrine at the Doswada spring
Unai-area Shrines
Pilgrim spots near the forest edge
Where to eat near Ukai Dam
THALIGujarati Thali
Comfort home cooking.
TRIBALTribal food
Rice & forest produce.
NAGLINagli rotla
The millet staple.
Forest & tribal fare
Tapi's food is simple and rooted — millet rotla, rice, forest produce and honey from Adivasi villages.
Ukai Dam FAQ
What is the Ukai Dam?
One of Gujarat's largest dams, on the Tapi river in Tapi district.
What is Vallabh Sagar?
The vast reservoir held back by the Ukai Dam.
When was it built?
Completed in the early 1970s.
What is it used for?
Irrigation, hydroelectric power and water supply.
Best time to visit?
After the monsoon and in winter, when the reservoir is full.
What is the setting?
Forested hill country in the heart of Tapi district.
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Carved Jain ruins amid the jungle
NATUREUnai Hot Springs
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Published 24 June 2026 · Updated 24 August 2026