Mullinix Mill Road over Patuxent River
FairHoward County, Maryland · 1.2 MI W of Md 94 · Structure no. 200000HO0127010
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 37 ft
- 1 main span
- Daily traffic
- 383
- 1999 count
- Owner
- County
- County Highway Agency
About this bridge
Mullinix Mill Road over Patuxent River is a prestressed concrete box beam or girders - multiple carrying Mullinix Mill Road over Patuxent River in Howard County, Maryland. It was built in 1991, so it is 34 years old, younger than the Maryland average of 52.6 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 383 vehicles a day, roughly 4% of them trucks, projected to reach 425 by 2015. The structure is 37 ft (11.3 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mullinix Mill Road over Patuxent River built?
It was built in 1991, making it 34 years old in 2025.
What condition is Mullinix Mill Road over Patuxent River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does Mullinix Mill Road over Patuxent River carry?
About 383 vehicles per day (1999 count), of which roughly 4% are trucks.
How long is Mullinix Mill Road over Patuxent River?
The structure is 37 ft (11.3 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.
Who owns Mullinix Mill Road over Patuxent River?
It is owned by the County Highway Agency.