Louisiana
Commercial Driveway and State Highway Access Permit
Access design and permit applications for commercial entrances onto city, county or state DOT roads.
What the work involves
Commercial entrances require an access permit from the road owner. The engineer designs driveway width, radii, sight distance, turn lanes, drainage and pavement, and prepares the application, sometimes supported by a traffic study. Many state DOTs have access management rules that limit driveway spacing and may require shared or right-in, right-out access.
Local conditions we plan for
- Hurricanes and storm surge
- Land subsidence and coastal land loss
- Soft, compressible deltaic soils requiring deep foundations
- Levees and riverine flooding
Building code: 2021 IBC/IRC adopted at the state level (ICC adoption chart, April 2026).
When you need it
- New commercial entrance on a public road
- Change of use that increases traffic
- Agency requires a turn lane
- Frontage on a state highway
- Relocating or closing existing driveways
Frequently asked questions
How much does commercial Driveway and State Highway Access Permit cost?
Across the US, commercial Driveway and State Highway Access Permit usually costs $2,000 to $30,000. Estimate. Simple city curb cuts cost less; state highway access with turn lanes costs more.
How long does commercial Driveway and State Highway Access Permit take?
Plan on 1 to 6 months including DOT review from signed proposal to stamped deliverables, longer if a site visit, soil testing or a permit review cycle is involved.
Do I need a licensed PE for commercial Driveway and State Highway Access Permit?
In most US jurisdictions, yes. When the work needs a permit, the plans, calculations or report usually must be sealed by a Professional Engineer licensed in the state where the project is located. Every deliverable we issue for permit is sealed that way.
How do I verify an engineer's license in Louisiana?
Engineers practicing in Louisiana are licensed by the Louisiana Professional Engineering and Land Surveying Board (LAPELS). You can confirm a license number and its status in the board's public license search before you sign a contract.
Which building code applies in Louisiana?
2021 IBC/IRC adopted at the state level (ICC adoption chart, April 2026). Cities and counties can add local amendments, which is one reason to hire an engineer who works in your area.
What site problems do engineers see most in Louisiana?
Common issues include hurricanes and storm surge, land subsidence and coastal land loss, soft, compressible deltaic soils requiring deep foundations and levees and riverine flooding.