Hotel Information
The official hotels for the ACI Concrete Convention are the Hilton Baltimore Inner Harbor and Baltimore Marriott Inner Harbor. All convention events will take place between both hotels.
ACI Hotel Blocks
| Hilton Baltimore Inner Harbor Hotel — Headquarter Hotel | Rate: $195 USD + tax
(ROH single/double) | |
| Baltimore Marriott Inner Harbor Hotel — Overflow Hotel | Rate: $195-$239 USD + tax
(ROH single/double) | |
Hotel Block Information
Hilton Baltimore Inner Harbor — Headquarter Hotel
The ACI group rate for the Hilton Baltimore Inner Harbor is available until October 1, 2025, subject to room availability. The $195 USD rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 72 hours prior to check-in without penalty. After 72 hours, one night’s room and tax will be charged.
During your stay, you may be contacted at:
- Hilton Baltimore Inner Harbor Hotel
401 W Pratt St, Baltimore, MD 21201
Phone: +1.443.573.8700
Check in: 4:00 pm EDT | Check out: 11:00 am EDT
Cancellation Policy
You may cancel your reservation at the Hilton Baltimore Inner Harbor up to 72 hours prior to arrival without penalty. After 72 hours, one night’s room and tax will be charged.
Baltimore Marriott Inner Harbor — Overflow Hotel
The ACI group rate for the Baltimore Marriott Inner Harbor is available until October 2, 2025, subject to room availability. The $195-$239 USD rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 48 hours prior to check-in without penalty. After 48 hours, one night’s room and tax will be charged.
During your stay, you may be contacted at:
- Baltimore Marriott Inner Harbor Hotel
110 S Eutaw St, Baltimore, MD 21201
Phone: +1.410.962.0202
Check in: 4:00 pm EDT | Check out: 12:00 pm EDT
Cancellation Policy
You may cancel your reservation at the Baltimore Marriott Inner Harbor up to 48 hours prior to arrival without penalty. After 48 hours, one night’s room and tax will be charged.
Hotel Piracy
Please note: Should you receive a phone call or email requesting you make your hotel reservation or upgrade your reservation through an outside party (or a party saying they represent the hotel) for a different rate, please do not comply and contact ACI Event Services at +1.248.848.3795 to report this.
Accessible Rooms
To reserve an accessible hotel room, please call each hotel directly and reference the American Concrete Institute.
Government Rooms
ACI has a small block of government-rate rooms at the Baltimore Marriott Inner Harbor Hotel. Click here to reserve a government-rate room. If you have any questions regarding ACI’s government room block, please contact Carole Berrelez at carole.berrelez@concrete or +1.248.848.3186 for further assistance.