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321-acre Sagadahoc Bay fishing map with NOAA BlueTopo survey contours (100% measured, 100% assessed), charted rock and wreck structure, regional fish-survey occurrence, sourced forage timing and verified public access. The water tops out around 12 ft. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The channels, holes and drop-offs come from the source data, not a distance-from-shore model. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 321 acres of water rimmed by 5.1 miles of bank, with a single island in the mix. Index 2 on the shoreline: a few honest points and pockets, nothing labyrinthine. Every acre of it sits shallower than ~15 ft: one big littoral zone, cover and forage throughout. Call it 1.4 mi long by 0.7 mi wide at the broadest reach. Closest neighbour on DepthScout: Stage Island Bay, 1 mi south of here.
Spring striped bass on Sagadahoc Bay hold shallow, usually 3 to 12 ft. Depth-wise the year is flat: 4 to 12 ft in summer, 4 to 12 ft once it turns cold. Put Surveyed channel edge first on the milk run — a drop-off near 7 ft that grades prime for summer. The feeding windows run early morning and the evening. The summer box starts with a flutter spoon (deep) or an umbrella rig (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Bucktail jig + trailer, Walking topwater (dawn) |
| Summer | 4 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Flutter spoon (deep), Umbrella rig (trolled) |
| Fall | 3 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Topwater walker, Jerkbait |
| Winter | 4 to 12 ft | midday | Surveyed channel edge (7 ft) | Alabama rig (slow), Flutter spoon |
Spring puts bluefish in skinny water — 2 to 12 ft is the zone. Summer fish stay in 2 to 12 ft, and winter fish hold in 4 to 12 ft. Summer bluefish concentrate at Surveyed channel edge, a prime-rated drop-off around 7 ft. Warm-month bites cluster around early morning and the evening. A popper (early/late) or a metal jigs in the rips covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Metal (Hopkins/Kastmaster), Pencil popper |
| Summer | 2 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Popper (early/late), Metal jigs in the rips |
| Fall | 1 to 12 ft | dawn & midday | Surveyed channel edge (7 ft) | Pencil popper, Big metal |
| Winter | 4 to 12 ft | midday | Surveyed channel edge (7 ft) | Metal jig worked slow (southern waters) |
Early season atlantic mackerel use the shallows, holding in 1 to 12 ft. Even in summer they hold at 2 to 12 ft; winter keeps them in 3 to 12 ft. Put Surveyed channel edge first on the milk run — a drop-off near 7 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a feather rig or a small vertical jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Mackerel feather rig, Small silver jig |
| Summer | 2 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Feather rig, Small vertical jig |
| Fall | 2 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Compact silver jig, Sparse feather rig |
| Winter | 3 to 12 ft | midday | Surveyed channel edge (7 ft) | Small deep jig |
Come spring, look for atlantic cod tight to the bank in 2 to 12 ft. Through summer count on 3 to 12 ft; the winter hold is 3 to 12 ft. Start at NOAA charted underwater rock. It's a rock pile holding about 5 ft of water and rates prime come spring. Prime time lands in early morning. A heavy metal jig or a large soft-plastic jig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn | NOAA charted underwater rock (5 ft) | Diamond jig, Heavy bucktail |
| Summer | 3 to 12 ft | dawn | NOAA charted underwater rock (5 ft) | Heavy metal jig, Large soft-plastic jig |
| Fall | 2 to 12 ft | dawn | NOAA charted underwater rock (5 ft) | Diamond jig, Bucktail with teaser |
| Winter | 3 to 12 ft | midday | NOAA charted underwater rock (5 ft) | Heavy vertical jig |
In spring, atlantic herring run shallow here, mostly 2 to 12 ft. Summer keeps them at 4 to 12 ft, and they winter in 4 to 12 ft. Surveyed channel edge is the standout, a drop-off at roughly 7 ft, rated prime for summer atlantic herring. Time it for early morning and the evening. You won't need more than a herring feather rig or a small silver jig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | NOAA charted underwater rock (5 ft) | Small herring feather rig, Micro jig rig |
| Summer | 4 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Herring feather rig, Small silver jig |
| Fall | 3 to 12 ft | dawn & dusk | Surveyed channel edge (7 ft) | Small feather rig, Compact silver spoon |
| Winter | 4 to 12 ft | midday | Surveyed channel edge (7 ft) | Small silver jig, Sparse feather rig |
6 pieces of structure are mapped here — Surveyed channel edge, around 7 ft, is the deepest of them.
Access data: Maine GeoLibrary — Boat Launches (Maine IF&W / DACF). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine DMR (saltwater recreational fishing) — and special regulations can apply to Sagadahoc Bay specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Sagadahoc Bay is about 12 ft (4 m) deep at its deepest point. The depth chart is built from real agency bathymetry referenced to NAVD88; directly measured coverage remains distinguished from source interpolation. The contours reflect measured and quality-assessed source depths.
Anglers target striped bass, bluefish, atlantic mackerel, atlantic cod, atlantic herring on Sagadahoc Bay.
NOAA charted underwater rock is the top-rated area: a rock pile in about 5 ft of water that rates prime for atlantic cod in spring. The interactive chart above rates every spot for each species and season.
For striped 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.
Fishing on Sagadahoc Bay is regulated by the Maine DMR (saltwater recreational fishing). Check the official Maine regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Stage Island Bay 1 mi · Todd Bay 1 mi · Sheepscot Bay 2 mi · Harmon Harbor 4 mi · Sagadahoc River 5 mi · Robinhood Cove 5 mi · Cape Harbor 5 mi · Ebenecook Harbor 7 mi · Damariscove Harbor 7 mi · Knubble Bay 7 mi · Hall Bay 8 mi · Booth Bay 8 mi
See how Sagadahoc Bay stacks up: best striped bass lakes in Maine · best bluefish lakes in Maine · best atlantic herring lakes in Maine · best atlantic mackerel lakes in Maine
Browse all Maine fishing maps or see every water on DepthScout. Bathymetry credit: NOAA BlueTopo (NAVD88; 100% measured, 0% source-interpolated). How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.