Rockford Lake
Gage County, Nebraska149 acresView mapDirections
Nebraska DEE publishes the water-quality measurements for Rockford Lake. Here is what has been measured.
- Hypereutrophic
- Impaired · Algal growth
- 24 ft max depth
- Public access
Rockford Lake in Gage County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 328 µg/L. Chlorophyll-a (algae): 35.5 µg/L. Surface area: 149 acres.
Rockford Lake is a 149-acre highly nutrient-loaded hypereutrophic lake in Gage County, Nebraska with an estimated average depth of about 24 feet. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Gage County, Rockford Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, NDEE, last sampled 2024-09-03. Methodology: how these readings are compared.
What Rockford Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
Readings onlyAlgae risk
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. Rockford Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), pH / acidity. Check local advisories before you swim.
Whether Rockford 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 Rockford Lake
These are the measurements Nebraska DEE publishes for Rockford Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 1.7 ft of visibility. Phosphorus 328 µg/L. Chlorophyll-a 35.5 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 328µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 35.5µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Rockford Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~24 ft est.
Surface area
149 acres
Public access
Yes
Listed by Nebraska DEE
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Nebraska has not published bathymetry for Rockford Lake.
Lake Size & Watershed
Watershed (drainage) area
14 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.8 mi
HydroLAKES / HydroSHEDS
Elevation
1,352 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Rockford Lake 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 Rockford Lake
- Rockford Lake State Recreation Area Campground0.4 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
Stays via Stay22
Stays near Rockford Lake
Compare lakeside cabins, hotels, and vacation rentals near Rockford Lake in Gage County, Nebraska — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Rockford Lake are listed below.
Top-rated places to stay near Rockford Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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Fishing Rockford Lake
Water Quality Trend: Worsening
Based on 13 years of monitoring (2012–2024).
Water clarity
Stable13 years
Phosphorus
Worsening+8.31 µg/L/yr5 years
Chlorophyll-a
Worsening+2.07 µg/L/yr12 years
Reservoir Info (USACE NID)
Rockford Lake is a man-made reservoir impounded by the Mud Creek 4-J (completed 1968), built primarily for flood risk reduction on the Bloody Run; earth-type dam, 60 ft tall and 1,585 ft long.
- Surface area
- 149 ac
- Normal storage
- 1,683 ac-ft
- Max storage
- 4,066 ac-ft
- Drainage area
- 13.7 sq mi
- Hazard class
- Low
- Owner
- Lower Big Blue Natural Resources District
Source: USACE National Inventory of Dams, NID ID NE00979 · Operator website · Matched by proximity (0.15 km)
EPA Impairment Status
Rockford 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-BB1-L0060 · Official waterbody report
Nearby Lakes in Gage County
Frequently asked questions about Rockford Lake
Where is Rockford Lake?
- Rockford Lake is a lake in Gage County, Nebraska. Its water-quality measurements are published by Nebraska DEE and shown on this page as reported.
What is the water quality of Rockford Lake?
- Rockford Lake in Gage County, Nebraska has water-quality measurements published by Nebraska DEE, shown here as reported. Water clarity: 1.7 ft visibility. Phosphorus: 328 µg/L. Chlorophyll-a (algae): 35.5 µg/L. Surface area: 149 acres.
Is Rockford Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Rockford Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), pH / acidity. Check local advisories before you swim.
How deep is Rockford Lake?
- No published bathymetric survey covers Rockford Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 24 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 149 acres.
Are there boat ramps on Rockford Lake?
- Rockford Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Rockford Lake State Recreation Area. Public access is listed as yes.
Can I fish at Rockford Lake?
- Rockford 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 Rockford Lake?
- Rockford Lake has 1 public campground from USGS The National Map within 5 km, including Rockford Lake State Recreation Area Campground. 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.
Explore Rockford Lake across LakeQuality
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Where this data comes from
173 measurements from 1 monitoring station, 2012–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Nebraska Department of Environment and Energy
21NEB001_WQX173 samples · 2012–2024
Analytical methods
- Total Phosphorus After Block Digestion
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles