Twnshp RD 184th ST over Cobb Ck
PoorDeuel County, South Dakota · 5 S & 4.7 W Gary · Structure no. 000000020163180
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Twnshp RD 184th ST over Cobb Ck is a concrete stringer/multi-beam or girder carrying Twnshp RD 184th ST over Cobb Ck in Deuel County, South Dakota. It was built in 1960, so it is 65 years old, older than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2032. The structure is 36 ft (10.9 m) long and 16 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Twnshp RD 184th ST over Cobb Ck built?
It was built in 1960, making it 65 years old in 2025.
What condition is Twnshp RD 184th ST over Cobb Ck 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 Twnshp RD 184th ST over Cobb Ck carry?
About 15 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Twnshp RD 184th ST over Cobb Ck?
The structure is 36 ft (10.9 m) long with a longest span of 34 ft (10.4 m) and a deck 16 ft wide.
Who owns Twnshp RD 184th ST over Cobb Ck?
It is owned by the County Highway Agency.