Millerville RD over I-12
FairEast Baton Rouge Parish, Louisiana · I-12 · Structure no. 611704540105921
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 294 ft
- 4 main spans
- Daily traffic
- 10,570
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
Millerville RD over I-12 is a prestressed concrete stringer/multi-beam or girder carrying Millerville RD over I-12 in East Baton Rouge Parish, Louisiana. It was built in 1989, so it is 36 years old, younger than the Louisiana average of 43 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 10,570 vehicles a day, projected to reach 11,627 by 2035. The structure is 294 ft (89.6 m) long and 99 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Millerville RD over I-12 built?
It was built in 1989, making it 36 years old in 2025.
What condition is Millerville RD over I-12 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 May 2023.
How much traffic does Millerville RD over I-12 carry?
About 10,570 vehicles per day (2015 count).
How long is Millerville RD over I-12?
The structure is 294 ft (89.6 m) long with a longest span of 92 ft (28 m) and a deck 99 ft wide.
Who owns Millerville RD over I-12?
It is owned by the State Highway Agency.