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 Jul 12, 11:08 AM ET

Today's verdict

Thunderstorms in the forecast — lightning and cyclists are a bad combination.

Thunderstorms — lightning and cyclists do not mix — get off the road before they arrive.
37 mph wind — gusty and hazardous on exposed bridges and overpasses.
Pavement: wet — wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.

0 /100

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0 Road

0 E-bike

Best for road cycling 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

81°F

Cloudy
Wind

37 mph

E
Rain

22%

Next 24h: 0.00"
Humidity

70%

Surface & daylight

Pavement

wet

mixed surface
Sunrise

5:52 AM
Sunset

8:34 PM

566 min remaining

Best time today

4 PM looks best — 85°F · 9 mph E wind · mostly cloudy. 5 PM is a close second (25/100).

12 PM

82°

Slight Chance Showers And Thunderstorms

8 mph E

—

1 PM

83°

Slight Chance Showers And Thunderstorms

9 mph E

—

2 PM

83°

Slight Chance Showers And Thunderstorms

9 mph E

—

3 PM

84°

Slight Chance Showers And Thunderstorms

9 mph E

—

4 PM Best

85°

Mostly Cloudy

9 mph E

5 PM

85°

Mostly Cloudy

9 mph E

6 PM

83°

Mostly Cloudy

9 mph E

7 PM

80°

Mostly Cloudy

8 mph E

8 PM

79°

Mostly Cloudy

6 mph E

Wind on this route

37 mph tailwind outbound — expect a 37 mph headwind on the return.

Currently 37 mph from the NE (50°). Relative to this ride's overall bearing, a quartering tailwind.

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

Elevation profile

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

Score breakdown

81°F air Within comfort range, outside ideal

-3

−

37 mph wind Gusty and hazardous on exposed bridges and overpasses.

-36

Quartering tailwind 37 mph tailwind outbound — expect a 37 mph headwind on the return.

−

Thunderstorms Lightning and cyclists do not mix — get off the road before they arrive.

-45

−

Pavement: wet Wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.

-32

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.