Lake Houston S Union Pacific Rr Bridge
Harris County, TexasView mapDirections
Nutrients and algae run well above the regional average.
↓ down from D at the last regrade
- Hypereutrophic
- #3 of 4 in the county
Lake Houston S Union Pacific Rr Bridge in Harris County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.3 ft visibility. Phosphorus: 210.5 µg/L. Chlorophyll-a (algae): 36.7 µg/L.
- Clarity
- 1.3 ft
- Type
- Hypereutrophic
- Phosphorus
- 210.5 µg/L
- Chlorophyll-a
- 36.7 µg/L
- Trend
- ↑ Improving
Stays via Stay22
Stays near Lake Houston S Union Pacific Rr Bridge
Compare lakeside cabins, hotels, and vacation rentals near Lake Houston S Union Pacific Rr Bridge in Harris County, Texas — 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Houston S Union Pacific Rr Bridge are listed below.
Top-rated places to stay near Lake Houston S Union Pacific Rr Bridge
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Watch Lake Houston S Union Pacific Rr Bridge’s letter
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Lake Houston S Union Pacific Rr Bridge is a highly nutrient-loaded hypereutrophic lake in Harris County, Texas. Water quality is graded F based on 2 sampling years through 2022. Overall water quality is improving over recent sampling years. Public access is available with 2 public boat landings. Compared to the 3 other monitored lakes in Harris County, Lake Houston S Union Pacific Rr Bridge ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2022-09-13. Grade methodology: LakeQuality methodology.
What Lake Houston S Union Pacific Rr Bridge is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
Swimming Safety
Grade onlyAlgae risk
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: F (Algae-prone)
Very murky, less than 1.3 ft of visibility. Phosphorus 210.5 µg/L. Chlorophyll-a 36.7 µg/L. TSI 73. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 ft | Not graded |
| Phosphorus | 210.5 µg/L | Poor |
| Chlorophyll-a (Algae) | 36.7 µg/L | Poor |
| Trophic State Index (TSI) | 73 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
→ Lake Houston S Union Pacific Rr Bridge water level: the live USGS gauge reading
Recreation & Access
- BJ's MarinaSemi-private
- Lake Houston MarinaSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Houston S Union Pacific Rr Bridge
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.075 m/yr | 3 |
| Phosphorus | → Stable | +3.5 µg/L/yr | 3 |
| Chlorophyll-a | ↑ Improving | -3.2 µg/L/yr | 3 |
County Ranking
Ranked #3 of 4 lakes in Harris County
Nearby Lakes With Higher Grades
Lake Houston S Union Pacific Rr Bridge holds Grade F. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Harris County
Frequently asked questions about Lake Houston S Union Pacific Rr Bridge
Where is Lake Houston S Union Pacific Rr Bridge?
- Lake Houston S Union Pacific Rr Bridge is a lake in Harris County, Texas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Houston S Union Pacific Rr Bridge?
- Lake Houston S Union Pacific Rr Bridge in Harris County, Texas has a water quality grade of F (Algae-prone). Water clarity: 1.3 ft visibility. Phosphorus: 210.5 µg/L. Chlorophyll-a (algae): 36.7 µg/L.
Is Lake Houston S Union Pacific Rr Bridge safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Lake Houston S Union Pacific Rr Bridge?
- Lake Houston S Union Pacific Rr Bridge has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include BJ's Marina, Lake Houston Marina.
Explore Lake Houston S Union Pacific Rr Bridge across LakeQuality
More Texas Lake Rankings
Other Grade F Lakes in Texas
Hypereutrophic Lakes in Texas
Where this data comes from
127 measurements from 1 monitoring station, 2020–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Texas Water Science Center
USGS-TX127 samples · 2020–2022
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory