Rt Aa S over Maries Rvr
PoorMaries County, Missouri · S 26 T 41 N R 10 W · Structure no. 1549
- Built
- 1966
- 59 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 234 ft
- 3 main spans
- Daily traffic
- 360
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rt Aa S over Maries Rvr is a steel continuous stringer/multi-beam or girder carrying Rt Aa S over Maries Rvr in Maries County, Missouri. It was built in 1966, so it is 59 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 360 vehicles a day, roughly 6% of them trucks, projected to reach 504 by 2044. The structure is 234 ft (71.3 m) long and 30 ft wide. If it were closed, the detour would be 21.1 mi (34 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rt Aa S over Maries Rvr built?
It was built in 1966, making it 59 years old in 2025.
What condition is Rt Aa S over Maries Rvr in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does Rt Aa S over Maries Rvr carry?
About 360 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is Rt Aa S over Maries Rvr?
The structure is 234 ft (71.3 m) long with a longest span of 90 ft (27.4 m) and a deck 30 ft wide.
Who owns Rt Aa S over Maries Rvr?
It is owned by the State Highway Agency.