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Fishing Somerville Lake: what the data says
11,456-acre reservoir near Somerville. The lake tops out around 29 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.
Largemouth Bass fishing at Somerville Lake
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 9 to 29 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring largemouth bass. Best bite is early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 29 ft | midday | Blade bait, Jigging spoon |
White Bass fishing at Somerville Lake
Spring white bass on Somerville Lake hold shallow, usually 2 to 12 ft. By summer they slide out to 8 to 25 ft, and by winter most fish are in 9 to 29 ft. The spot to know is Jerdelle Creek inflow, a inflow / creek mouth in about 2 ft of water that rates prime for white bass in spring. Best bite is early morning and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | see map |
| Summer | 8 to 25 ft | dawn & dusk | see map |
| Fall | 6 to 25 ft | dawn & dusk | see map |
| Winter | 9 to 29 ft | midday | see map |
White Bass & Hybrids fishing at Somerville Lake
Spring white bass & hybrids on Somerville Lake hold shallow, usually 3 to 15 ft. By summer they slide out to 9 to 29 ft, and by winter most fish are in 9 to 29 ft. The spot to know is Deep basin, a deep basin in about 28 ft of water that rates prime for white bass & hybrids in winter. In summer the feeding windows fall in early morning and the evening. Summer baits: a jigging spoon or a topwater (when schooling) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 15 ft | midday & dawn | Rooster tail / inline spinner, Curly-tail jig (white/chartreuse) |
| Summer | 9 to 29 ft | dawn & dusk | Jigging spoon, Topwater (when schooling) |
| Fall | 8 to 25 ft | midday & dawn | Small blade bait, Jigging spoon |
| Winter | 9 to 29 ft | midday | Jigging spoon, Blade bait (vertical) |
Crappie fishing at Somerville Lake
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 9 to 29 ft. The spot to know is Deep basin, a deep basin in about 28 ft of water that rates prime for crappie in winter. In summer the feeding windows fall in early morning and the evening. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 9 to 29 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Somerville Lake
Spring bluegill on Somerville Lake hold shallow, usually 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 10 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring bluegill. Plan around early morning and the evening in the warm months. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Channel Catfish fishing at Somerville Lake
In spring, channel catfish run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 9 to 29 ft. Old creek channel is the standout, a creek channel at roughly 24 ft, rated prime for summer channel catfish. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 9 to 29 ft | dusk | |
| Winter | 9 to 29 ft | midday |
Somerville Lake also holds blue catfish (7 to 29 ft in summer), flathead catfish (8 to 29 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Notable structure
- Deep basin: deep basin, around 28 ft
- Deepest basin: deep basin, around 28 ft
- Old creek channel: creek channel, around 24 ft
- Sharp break: drop-off, around 22 ft
- Shallow feeding flat: feeding flat, around 20 ft
- Break off the point: drop-off, around 14 ft
- Sharp break: drop-off, around 11 ft
- Main-lake point: point, around 6 ft
- Shoreline point: point, around 6 ft
- Feeding flat: feeding flat, around 6 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
- Marina / dock area: dock line, around 3 ft
- Gravel shoal: gravel shoal, around 3 ft
Common questions
How deep is Somerville Lake?
Somerville Lake is about 29 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Somerville Lake?
Anglers target largemouth bass, white bass, crappie, bluegill, channel catfish, white bass & hybrids, flathead catfish, blue catfish on Somerville Lake.
Where is the best fishing spot on Somerville Lake?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Somerville Lake?
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Lake Bryan · Granger Lake · Colorado River (Austin) · Lake Conroe · Lake Limestone · Lady Bird Lake
See how Somerville Lake stacks up: best largemouth bass lakes in Texas · best white bass lakes in Texas · best crappie lakes in Texas · best bluegill lakes in Texas
Browse all Texas fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.