Washington, DC · mostly separated · mixed

9-11 Trail (District of Columbia)

4.3 mi Out-and-back 39 ft gain

4.3-mile mixed route with 39 ft of elevation gain, signed as part of the U.S. Bicycle Route System, route reference “9-11”, mostly separated from motor traffic.

Live · updated Oct 27, 7:57 AM ET

Today's verdict

Workable day to get the road bike out.

52°F air — right in road cycling's sweet spot
21 mph wind — noticeable — pacing will shift with the wind.

68 /100

good

68 Road

70 E-bike

Best for e-bike riding today

Route map

Orange marker is the start. Click the map to enable scroll-zoom — the polyline is approximate; use Ride with GPS or Komoot for turn-by-turn.

Atmosphere

Air temp

52°F

Clear
Wind

21 mph

NE
Rain

2%

Next 24h: 0.00"
Air quality

AQI 52

PM2.5 · Moderate
Humidity

82%

Surface & daylight

Pavement

dry

mixed surface
Sunrise

7:29 AM
Sunset

6:14 PM

618 min remaining

Best time today

8 AM looks best — 50°F · 5 mph N wind · sunny. 9 AM is a close second (71/100).

8 AM Best

50°

Sunny

5 mph N

9 AM

54°

Sunny

5 mph NE

10 AM

59°

Sunny

6 mph NE

11 AM

63°

Sunny

6 mph NE

12 PM

66°

Sunny

5 mph NE

1 PM

68°

Sunny

5 mph NE

2 PM

69°

Sunny

3 mph NE

3 PM

70°

Sunny

3 mph NE

4 PM

70°

Sunny

3 mph NE

5 PM

69°

Sunny

5 mph E

Wind on this route

21 mph tailwind outbound — expect a 21 mph headwind on the return.

Currently 21 mph from the N (360°). Relative to this ride's overall bearing, a quartering tailwind.

Leg 1 Bearing 237° · quartering tailwind 0.4 mi
Leg 2 Bearing 245° · quartering tailwind 0.3 mi
Leg 3 Bearing 269° · crosswind 0.4 mi
Leg 4 Bearing 292° · quartering headwind 0.3 mi
Leg 5 Bearing 270° · crosswind 0.4 mi
Leg 6 Bearing 270° · crosswind 0.4 mi
Leg 7 Bearing 215° · quartering tailwind 0.3 mi
Leg 8 Bearing 256° · crosswind 0.4 mi

Elevation profile

76 ft gain 148 ft loss Max 69' Min -3' 3.7 mi sampled

Score breakdown

52°F air Right in road cycling's sweet spot

+10

−

21 mph wind Noticeable — pacing will shift with the wind.

-6

Quartering tailwind 21 mph tailwind outbound — expect a 21 mph headwind on the return.

Pavement: dry Clean dry pavement — maximum grip.

AQI 52 Moderate air — fine for shorter commutes, cut intervals short.

-3

About this route

Distance: 4.3 mi one-way (double for round-trip)
Elevation gain: 39 ft
Surface: mixed
Shape: Out-and-back
Traffic exposure: mostly separated
Activities: road cycling · e bike
Cycle network: NCN · route 9-11
Start: 38.8951, -77.0090
City hub: Washington, DC
OSM: relation 13631683

Description sourced from OpenStreetMap relation tags and member-way geometry.