177 Street over Big Sioux Rv
PoorPosted for loadCodington County, South Dakota · 5.0S 2.5E Watertown · Structure no. 000000015215230
- Built
- 1920
- 105 years old
- Condition
- Poor
- inspected June 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 83 ft
- 2 main spans
- Daily traffic
- 73
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
177 Street over Big Sioux Rv is a concrete continuous tee beam carrying 177 Street over Big Sioux Rv in Codington County, South Dakota. It was built in 1920, so it is 105 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. Its operating status is: posted for load restriction.
It carries about 73 vehicles a day, roughly 2% of them trucks, projected to reach 73 by 2032. The structure is 83 ft (25.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 177 Street over Big Sioux Rv built?
It was built in 1920, making it 105 years old in 2025.
What condition is 177 Street over Big Sioux Rv 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 June 2024.
How much traffic does 177 Street over Big Sioux Rv carry?
About 73 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 177 Street over Big Sioux Rv?
The structure is 83 ft (25.3 m) long with a longest span of 40 ft (12.2 m) and a deck 22 ft wide.
Who owns 177 Street over Big Sioux Rv?
It is owned by the County Highway Agency.