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LakeQuality

Big Five Bridge Lake

Halifax, Nova Scotia225 haView mapDirections

NSECC publishes the water-quality measurements for Big Five Bridge Lake. Here is what has been measured.

Clarity
1.4 m
Murkier than most
Secchi · sampled 2004
Phosphorus
40 µg/L
More phosphorus than most
Measured by NSECC
Chlorophyll-a
2.4 µg/L
Typical for Nova Scotia
Measured by NSECC
Max depth
12 m
Bathymetric survey
Area
225 ha
Surface area
  • 39 ft max depth
  • Limited data

Big Five Bridge Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 1.4 m visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 39.4 ft. Surface area: 556.1 acres.

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Big Five Bridge Lake is a 556-acre lake in Halifax County, Nova Scotia with a maximum depth of 39 feet (13-foot average).

Source: Nova Scotia Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2004-07-07. Methodology: how these readings are compared.

What Big Five Bridge Lake is good for

From access and monitoring records, not editorial picks.

  • Deep water39.4 ft surveyed max depth

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Big Five Bridge Lake is safe to swim in today is a call for Nova Scotia Environment and Climate Change and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Big Five Bridge Lake

These are the measurements NSECC publishes for Big Five Bridge Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Murky, only visible to about 4.4 ft. Phosphorus 40 µg/L. Chlorophyll-a 2.4 µg/L. TSI 51.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)1.35mMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus40µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)2.4µg/LMeasured, not scored

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.51Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Big Five Bridge Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

12 m

Average depth

3.8 m

Surface area

225 ha

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Fishing Big Five Bridge Lake

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Frequently asked questions about Big Five Bridge Lake

Where is Big Five Bridge Lake?

Big Five Bridge Lake is a lake in Halifax, Nova Scotia. Its water-quality measurements are published by NSECC and shown on this page as reported.

What is the water quality of Big Five Bridge Lake?

Big Five Bridge Lake in Halifax, Nova Scotia has water-quality measurements published by NSECC, shown here as reported. Water clarity: 1.4 m visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 39.4 ft. Surface area: 556.1 acres.

Measurements on this page ↑

Is Big Five Bridge Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Big Five Bridge Lake?

Big Five Bridge Lake has a maximum depth of 39.4 feet and an average depth of 12.6 feet. The lake covers 556.1 acres.

Where this data comes from

3 measurements from 1 monitoring station, 2004. Retrieved from Nova Scotia open data (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

  • NSDAFNSDAF1 sample · 2004
Monitoring station identifiers (1)
  • 232

Canadian lakes are published with the measurements their provincial programme reports. See where the data comes from and data sources.