Bethesda, MD · mixed · mixed

Georgetown Branch Trail Detour

1.7 mi Out-and-back 98 ft gain

1.7-mile mixed route with 98 ft of elevation gain, signed as part of the regional cycle network, route reference “GBTD”.

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.
Pavement: wet — wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.
29 mph wind — strong — plan for slow outbound if wind is against you.
Exposed + wet + windy — mixed traffic in wet windy conditions — visibility and handling margin drop together.

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

79°F

Cloudy
Wind

29 mph

E
Rain

21%

Next 24h: 0.00"
Humidity

75%

Surface & daylight

Pavement

wet

mixed surface
Sunrise

5:52 AM
Sunset

8:34 PM

567 min remaining

Best time today

4 PM looks best — 84°F · 9 mph E wind · mostly cloudy. 5 PM is a close second (19/100).

12 PM

81°

Slight Chance Showers And Thunderstorms

8 mph E

—

1 PM

82°

Slight Chance Showers And Thunderstorms

8 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

84°

Mostly Cloudy

9 mph E

5 PM

83°

Mostly Cloudy

9 mph E

6 PM

81°

Mostly Cloudy

9 mph E

7 PM

79°

Mostly Cloudy

8 mph SE

8 PM

78°

Mostly Cloudy

7 mph SE

Wind on this route

29 mph tailwind outbound — expect a 29 mph headwind on the return.

Currently 29 mph from the NE (40°). Relative to this ride's overall bearing, a quartering tailwind.

Leg 1 Bearing 234° · tailwind 0.1 mi
Leg 2 Bearing 249° · tailwind 0.1 mi
Leg 3 Bearing 158° · quartering tailwind 0.1 mi
Leg 4 Bearing 173° · quartering tailwind 0.1 mi
Leg 5 Bearing 177° · quartering tailwind 0.2 mi
Leg 6 Bearing 180° · quartering tailwind 0.1 mi
Leg 7 Bearing 172° · quartering tailwind 0.1 mi
Leg 8 Bearing 179° · quartering tailwind 0.1 mi

Elevation profile

115 ft gain 121 ft loss Max 387' Min 302' 1.5 mi sampled

Score breakdown

79°F air Within comfort range, outside ideal

-3

−

Exposed + wet + windy mixed traffic in wet windy conditions — visibility and handling margin drop together.

-12

−

29 mph wind Strong — plan for slow outbound if wind is against you.

-18

Quartering tailwind 29 mph tailwind outbound — expect a 29 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

Advisories & nearby alerts

NWSTest Message

About this route

Distance: 1.7 mi one-way (double for round-trip)
Elevation gain: 98 ft
Surface: mixed
Shape: Out-and-back
Traffic exposure: mixed
Activities: road cycling · e bike
Cycle network: RCN · route GBTD
Start: 38.9985, -77.0888
City hub: Bethesda, MD
OSM: relation 8040043

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