Origin
Spring Hill, TN
Morning in Spring Hill on Sunday
Local time
10:55 AM
EDT
Current temp
49°F
Unavailable
Live forecast
Trip from Spring Hill, TN to Portland, TN
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
3h 32m
Distance
181.2 mi
292 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$28
one way
EV Charging
Unknown
Best Time to Leave
4 AM
3h 20m
★
6 AM
3h 33m
8 AM
3h 57m
10 AM
3h 41m
12 PM
3h 39m
3 PM
3h 43m
5 PM
3h 56m
8 PM
3h 25m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Spring Hill, TN
Wikimedia Commons
Portland, TN
Wikimedia Commons
Trip Overview
Spring Hill, TN to Portland, TN is 181.2 miles and takes about 3h 32m via I 40 and SR 109, with a fuel budget near $28 and enough daylight to finish in a day. This drive stays within Tennessee, traversing the Southeast region. Expect a predominantly highway-focused experience for this single-day trip. With 80% of the journey on highways, it's a straightforward connection between these two points, suitable for those prioritizing direct travel. The estimated fuel cost of $28 makes it an economical option for a day trip.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
90.6 miles from Spring Hill, TN
A natural place for your longest stop of the day , about 1h 48m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 40 | 115.7 mi | 2h 4m |
| SR 109 | 30.2 mi | 38m |
| Harriman Highway | 9.8 mi | 11m |
| East Tri County Boulevard | 5.7 mi | 6m |
| North Roane Street | 4.1 mi | 4m |
| Edgemoor Road | 4.1 mi | 7m |
| South Illinois Avenue | 3 mi | 4m |
| Oak Ridge Highway | 2.7 mi | 3m |
Longest stretch:
I 40
— 115.7 mi, about 2h 4m
Turn-by-Turn Driving Directions
Step-by-step road directions between Spring Hill, TN and Portland, TN.
1
Start on Gade Lane
40 ft
·
4 sec
·
Gade Lane
2
Turn right onto Mehaffey Road
0.2 mi
·
59 sec
·
Mehaffey Road
3
Turn right onto Creek Road
0.6 mi
·
2 min
·
Creek Road
4
Turn right onto New Henderson Road
0.6 mi
·
1 min
·
New Henderson Road
5
Continue on New Henderson Road
1.4 mi
·
3 min
·
New Henderson Road
6
At end of road, turn left onto SR 170
4.1 mi
·
7 min
·
Edgemoor Road
7
Take the ramp
101 ft
·
2 sec
8
Keep slight right at fork
0.4 mi
·
51 sec
9
Merge onto SR 62
2.7 mi
·
3 min
·
Oak Ridge Highway
10
Continue on SR 62
3.0 mi
·
4 min
·
South Illinois Avenue
11
Continue on SR 62
5.7 mi
·
6 min
·
East Tri County Boulevard
12
Continue on SR 61
9.6 mi
·
10 min
·
Harriman Highway
13
Merge onto US 27
0.2 mi
·
10 sec
·
Bitter Creek Highway
14
Continue on US 27
0.2 mi
·
15 sec
·
Harriman Highway
15
Continue on US 27
2.1 mi
·
2 min
·
Hannah Highway
16
Continue on US 27
4.1 mi
·
4 min
·
North Roane Street
17
Turn left
0.2 mi
·
25 sec
18
Merge onto I 40
116 mi
·
2 hr 4 min
·
I 40
Use the straight / slight right lanes.
19
Take the exit
0.3 mi
·
48 sec
Exit 232
Toward TN 109: Gallatin
Use the slight right lane.
20
Turn right onto SR 109
13 mi
·
18 min
·
SR 109
Use the left lane.
21
Turn left onto SR 109
18 mi
·
20 min
·
SR 109
Use the left lane.
22
Arrive at destination
SR 109
Trip Plan
Given the 3h 32m estimated duration, this is a manageable one-day trip from Spring Hill to Portland. Aim to depart in the morning to take advantage of daylight and allow flexibility for any unexpected delays. The longest stretch on I 40 is over 115 miles, so plan your fuel stops accordingly before you get too low. While there's only one suggested stop, you can easily adjust your timing, as this isn't an overnight journey. Keep an eye on your route as you transition from I 40 to SR 109 and Harriman Highway for a smooth arrival in Portland.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 90.6 miles from Spring Hill, TN, or about 1h 48m into the drive.
The longest continuous stretch on this route runs about 115.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 40 miles or 54m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 90.6 miles or 1h 48m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 51m
Traffic, exits, and arrival timing usually matter more near Portland, TN than in the middle of the route.
Before You Leave
+
Open the route before leaving Spring Hill, TN so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Spring Hill, TN
This is one driving day of about 181.2 miles and 3h 32m.
Your first comfortable stop window is around 40 miles from Spring Hill, TN.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 40 for about 115.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
91 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 40 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 90.6 miles from Spring Hill, TN, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 40 if your tank is already low. That segment runs about 115.7 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 125 decision points cluster between mile 0 and 151 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip
|
~0m in
|
Mehaffey Road
Turn right onto Mehaffey Road
Navigation decision point
5
2.9 mi into trip
|
~8m in
|
SR 170 / Edgemoor Road
At end of road, turn left onto SR 170 / Edgemoor Road
Navigation decision point
5
35 mi into trip
|
~49m in
|
I 40
Merge onto I 40
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
150.6 mi into trip
|
~2h 53m in
Take the exit toward TN 109: Gallatin
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 232
Toward TN 109: Gallatin
5
151 mi into trip
|
~2h 54m in
|
SR 109
Turn right onto SR 109
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$28.33 one way
$56.66 round trip
$3.97/gal
25.4 MPG avg
63 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $31.10 | $62.21 |
| premium | $4.89 | $34.87 | $69.74 |
| diesel | $5.61 | $40.01 | $80.01 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$28
Meals
$25–$50
Total
$53–$78
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 63.4 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $19 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 54.4 | 0 | $19.03 | $8.70 |
| Efficient EV | 45.3 | 0 | $15.85 | $7.25 |
| EV Truck/SUV | 72.5 | 0 | $25.37 | $11.60 |
Gas CO2
63 kg
EV CO2
21 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Portland, TN
Morning in Portland on Sunday
Local time
9:55 AM
CDT
Current temp
53°F
Unavailable
Live forecast
79°F
Monterey, TN
91 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
4 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 32m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Stones River National Battlefield
National Battlefield
The Battle of Stones River began on the last day of 1862 and became one of the bloodiest conflicts of the Civil War. The battle produced important military and political gains for the Union, and it ch...
21 mi from route
~54 min detour
Free
near mile 150
View on nps.gov
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
This route is largely a highway-focused drive, with 80% of the mileage on major roads. You'll spend a significant portion of your time on I 40, experiencing a continuous stretch of 115.7 miles on this interstate. While I 40 provides a fast pace, the inclusion of SR 109 and Harriman Highway suggests a transition to more localized arterial roads as you approach your destination. The profile indicates a predominantly straightforward driving experience, with less emphasis on winding or technical sections.
80% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 115.7 mi on I 40.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 40 and SR 109. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Mehaffey Road.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 181.2 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Mehaffey Road): Navigation decision point; at 2.9 miles (SR 170 / Edgemoor Road): Navigation decision point; at 35 miles (I 40): Merge point - match speed before joining. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 32m. Total distance: 181.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 32m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (80%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 115.7 miles on I 40. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
The main spots that need attention: near the start (Mehaffey Road): Navigation decision point; at 2.9 miles (SR 170 / Edgemoor Road): Navigation decision point; at 35 miles (I 40): Merge point - match speed before joining. Lane positioning matters here.
Yes — Stones River National Battlefield. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 3.5 hours each way, an in-and-out day trip would put you behind the wheel for 7.1 hours — manageable with a long break at Portland, TN, but most travelers stay overnight.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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