KBCK · Black River Falls Area Airport
Black River Falls Area Airport serves Black River Falls, Wisconsin at 836 ft elevation with its longest runway, 08/26, at 4,601 by 75 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.
Open KBCK in JetDesk: live METAR, TAF, winds and runway verdict →
01Runways
| Runway | Length × width | Surface | Lighting |
|---|---|---|---|
| 08/26 | 4,601 × 75 ft | asphalt | lit |
02Density altitude and turboprop runway margins
Standard temperature at 836 ft is about 13°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.
| Conditions | Density altitude | Takeoff est. | Landing est. | Landing × 1.5 |
|---|---|---|---|---|
| Standard day (ISA, 13°C) | 836 ft | 2,601 ft | 2,198 ft | 3,297 ft |
| Warm day (ISA +10) | 2,036 ft | 2,835 ft | 2,325 ft | 3,487 ft |
| Hot day (ISA +20) | 3,236 ft | 3,069 ft | 2,451 ft | 3,677 ft |
| 35°C afternoon | 3,437 ft | 3,108 ft | 2,473 ft | 3,709 ft |
03Nearby fields with 5,000 ft or more
Useful as alternates, as fuel stops when the price at KBCK is high, or as the longer runway on a hot afternoon.
| Airport | Distance | Longest runway |
|---|---|---|
| KLSE La Crosse Regional Airport | 28 nm SW | 8,742 ft |
| KMFI Marshfield Municipal Airport | 37 nm NE | 5,003 ft |
| KONA Winona Municipal Airport Max Conrad Field | 38 nm W | 5,679 ft |
| KISW Alexander Field South Wood County Airport | 44 nm E | 5,500 ft |
| KEAU Chippewa Valley Regional Airport | 46 nm NW | 8,101 ft |
04Jet A prices and FBOs at KBCK
No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KBCK, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KBCK or read what a fuel stop actually saves.