SH 183A Toll Road Complete Guide: Austin, Cedar Park, Leander, Liberty Hill 2025
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SH 183A Toll Road Complete Guide
System: Electronic toll collection only (All-Electronic Tolling)
Length: 16 miles from RM 620 to Liberty Hill
Coverage: Austin, Cedar Park, Leander, Liberty Hill
Technology: TxTag, EZ TAG, TollTag, PikePass, SunPass, E-ZPass compatible
Operator: Central Texas Regional Mobility Authority (CTRMA)
Do I Need a Toll Tag for 183A? 2025 Update
No, you don't need a toll tag to drive on 183A Toll Road - but you'll save significantly with one. The 183A Toll Road is completely electronic with no cash toll booths, offering two payment options: electronic tags or Pay By Mail.
Key Reality: Electronic tag users get a 33% discount compared to Pay By Mail rates. Without a tag, you'll pay 50% more plus a $1 processing fee per bill.
2025 Update: The Phase III extension to Liberty Hill opened April 9, 2025, extending 183A Toll Road to nearly 16 miles. Current rates increased by 2-9 cents effective January 1, 2025.
183A Toll Road Costs: Current Rates
The 183A Toll Road operates with distance-based pricing, with costs varying by toll point and payment method. The road serves as a critical bypass for US 183 through Austin's northwest suburbs.
Current Toll Rates by Location (2025)
| Toll Point | Tag Rate | Pay By Mail | 2025 Changes |
|---|---|---|---|
| Crystal Falls Ramp | $0.62 | $0.93 | +9 cents |
| Crystal Falls Mainline Plaza | $1.43 | $2.15 | +9 cents |
| Lakeline Mainline Plaza | $1.94 | $2.91 | +9 cents |
| Whitewing Mainline Plaza (Phase III) | $1.29 | $1.94 | New 2025 |
| Full Extension Trip (Hero Way to SH 29) | $2.38 | $3.57 | Phase III rates |
Phase III Extension Details (2025)
New Section: 5.3-mile extension from Hero Way in Leander to SH 29 in Liberty Hill
Opening Date: April 9, 2025 (toll lanes operational)
Total Length: Nearly 16 miles of continuous toll road from RM 620 to Liberty Hill
Traffic Impact: Over 1 million transactions in first month, averaging 35,000 transactions daily
How to Pay 183A Toll Road
You can use the following toll payment methods on 183A Toll Road:
1. Electronic Tags (33% Discount):
- TxTag (Texas Department of Transportation)
- EZ TAG (Harris County Toll Road Authority)
- TollTag (North Texas Tollway Authority)
- PikePass (Oklahoma), K-TAG (Kansas)
- SunPass (Florida), E-ZPass (17 states)
- ExpressToll (Colorado), BancPass (Plus Pass)
2. Pay By Mail:
- License plate recognition system
- 50% higher rates than tag users
- $1 processing fee per bill
- 30-day payment window
3. Prepaid Registered Account:
- 25% savings on Pay By Mail rates
- $25 minimum account balance
- Automatic toll payment without tag
- Online or phone registration
To calculate toll costs for cars, trucks, motorcycles and all vehicle types on 183A Toll Road, use TollGuru toll calculator
Recent Changes (2025)
Phase III Extension Opening:
- April 9, 2025: 5.3-mile extension from Hero Way to SH 29 opened to traffic
- May 2025: Final SH 29 bypass and connecting ramps expected completion
- Total project cost: $277.3 million with federal TIFIA loan
- Shared Use Path: 10-foot-wide, 7-mile bicycle/pedestrian path construction continuing
2025 Rate Increases:
- Effective January 1, 2025: 2.44% average increase
- Crystal Falls locations: 9-cent increase (highest on system)
- Lakeline Mainline Plaza: 9-cent increase
- Most other locations: 1-5 cent increases
Future Expansion Plans:
- Fourth lane addition study: FM 620 to Hero Way corridor
- Capacity expansion planned for projected traffic growth
- Williamson County population boom driving increased demand
- SH 29 bypass completion: Final construction phase by July 2025
Road Sections & Communities Served
Phase I (2007) - Original Section:
- Length: 5 miles from RM 620 to RM 1431
- Serves: Northwest Austin, south Cedar Park
- Major interchanges: RM 620, Whitestone Boulevard
Phase II (2012) - Northern Extension:
- Length: 5 miles from RM 1431 to Hero Way
- Serves: Cedar Park, Leander
- Cost: $105 million
- Major interchanges: RM 1431, Lakeline Mall area
Phase III (2025) - Liberty Hill Extension:
- Length: 5.3 miles from Hero Way to SH 29
- Serves: Leander, Liberty Hill
- Cost: $277.3 million
- Features: Two tolled lanes each direction, shared use path
Regional Toll Information
Central Texas Regional Mobility Authority (CTRMA) System:
- MoPac Express Lane - 11-mile express lane with variable pricing
- 290 Toll Road - 6.2 miles of tolled express lanes along Highway 290
- 183 Toll Road - South Austin corridor from US 290 to SH 71
- 71 Toll Lane - 4-mile express lane between Presidential Boulevard and SH 130
- 45SW Toll Road - 3.6-mile connector between Loop 1 and FM 1626
Other Austin Area Toll Roads:
- SH 130 - Eastern bypass with segments operated by different agencies
- SH 45 - Multiple segments connecting various Austin suburbs
- Austin Toll Roads - Complete overview of metropolitan toll system
Nearby Communities:
- Austin - State capital with multiple toll facilities
- Cedar Park - Rapidly growing suburb served by 183A
- Leander - Northern terminus of original 183A system
- Liberty Hill - New northern terminus after Phase III
Planning Your Journey
Cost Considerations:
- Full-length trips: $2.38 with tag, $3.57 Pay By Mail
- Daily commuting: $4.76 round trip with electronic tag
- Annual tag savings: $400+ for regular users vs. Pay By Mail
- Veterans: Toll-free travel on all CTRMA roads
Traffic Benefits:
- Bypasses 4 signalized intersections (Hero Way, San Gabriel Parkway, Bryson Ridge Trail, Whitewing Drive)
- Reduces travel time by 10-15 minutes during peak hours
- Improves safety with controlled-access design
- Reduces emissions with smoother traffic flow
Alternative Routes:
- US 183 general purpose lanes (non-tolled)
- 183A frontage roads north of RM 1431
- RM 620 to Parmer Lane connections
- Local surface streets for shorter trips
Frequently Asked Questions
Can I avoid 183A tolls completely?
Yes, you can use the non-tolled US 183 general purpose lanes or 183A frontage roads north of RM 1431. However, this adds 10-15 minutes to your journey during peak hours and requires stopping at multiple traffic signals.
What happens if I don't pay 183A tolls?
Unpaid tolls result in violation notices with escalating fees. An unpaid Pay By Mail bill can accrue up to $60 in violation fees after 90 days, potentially leading to vehicle registration holds.
Do motorcycles pay tolls on 183A?
Yes, motorcycles pay the same toll rates as passenger cars. However, motorcycles need special tags since standard TxTag relies on windshield glass for mounting.
When will the SH 29 bypass be completed?
The final SH 29 bypass and connecting ramps are expected to be completed by the end of May 2025, with full project completion including shared use path and landscaping by July 2025.
Are there discounts for veterans?
Yes, in accordance with state law, CTRMA waives tolls for veterans on all Mobility Authority roads including 183A, MoPac Express, 290 Toll, 71 Toll Lane, 45SW Toll, and 183 Toll.
183A vs. Regional Toll Roads
| Toll Road | Length | Typical Cost | Primary Purpose |
|---|---|---|---|
| 183A Toll | 16 miles | $2.38 full length | North Austin bypass |
| MoPac Express | 11 miles | $0.57-$15+ variable | Express lane |
| 290 Toll | 6.2 miles | $1.50-$4.00 | East Austin corridor |
| 183 Toll South | 11 miles | $2.00-$5.00 | South Austin corridor |
Useful Links & Resources
Internal Navigation:
- Austin Toll Roads - Complete Austin area toll system overview
- CTRMA - Operating agency information
- Texas Toll Roads - Statewide toll system
- TxTag Information - Primary toll tag system
- Williamson County Tolls - Regional toll network
Official Resources:
- Central Texas Regional Mobility Authority: (512) 996-9778
- Customer Service: 833-762-8655
- TxTag Customer Service: 1-888-468-9824
- Pay Mobility Bill: PayMobilityBill.com
- 183A Phase III Project: 183a.com
