Bridgeport Middle Lake
Morrill County, NebraskaView mapDirections
Nebraska DEE publishes the water-quality measurements for Bridgeport Middle Lake. Here is what has been measured.
- Oligotrophic
- Impaired · Mercury
- Public access
Bridgeport Middle Lake in Morrill County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 18.9 ft visibility. Chlorophyll-a (algae): 2 µg/L.
Bridgeport Middle Lake is a cold, clear oligotrophic lake in Morrill County, Nebraska. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, NDEE, last sampled 2024-09-25. Methodology: how these readings are compared.
What Bridgeport Middle Lake is good for
From access and monitoring records, not editorial picks.
- Clear water18.9 ft of visibility
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Bridgeport Middle Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Bridgeport Middle Lake is safe to swim in today is a call for the Nebraska Department of Environment and Energy and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Bridgeport Middle Lake
These are the measurements Nebraska DEE publishes for Bridgeport Middle Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 18.9 ft down. Chlorophyll-a 2 µg/L. TSI 36.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 18.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 2µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 36 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Bridgeport Middle Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Bridgeport State Recreation AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Bridgeport Middle Lake
- Bridgeport State Recreation Area0.4 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
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Stays near Bridgeport Middle Lake
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Fishing Bridgeport Middle Lake
Water quality readings over time
3 seasons of samples on record (2017–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening3 years
Chlorophyll-a
Worsening+0.14 µg/L/yr3 years
EPA Impairment Status
Bridgeport Middle Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit NE-NP3-L0030 · Official waterbody report
Nearby Lakes in Morrill County
Frequently asked questions about Bridgeport Middle Lake
Where is Bridgeport Middle Lake?
- Bridgeport Middle Lake is a lake in Morrill County, Nebraska. Its water-quality measurements are published by Nebraska DEE and shown on this page as reported.
What is the water quality of Bridgeport Middle Lake?
- Bridgeport Middle Lake in Morrill County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 18.9 ft visibility. Chlorophyll-a (algae): 2 µg/L.
Is Bridgeport Middle Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Bridgeport Middle Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Are there boat ramps on Bridgeport Middle Lake?
- Bridgeport Middle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Bridgeport State Recreation Area. Public access is listed as yes.
Can I fish at Bridgeport Middle Lake?
- Bridgeport Middle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Nebraska's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Bridgeport Middle Lake?
- Bridgeport Middle Lake has 1 public campground from USGS The National Map within 5 km, including Bridgeport State Recreation Area. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
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Where this data comes from
38 measurements from 1 monitoring station, 2017–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Nebraska Department of Environment and Energy
21NEB001_WQX38 samples · 2017–2024
Analytical methods
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles