14th Ave. N Wtn. over Big Sioux Rv
PoorPosted for loadCodington County, South Dakota · 2 N 1.2W Watertown · Structure no. 000000015178160
- Built
- 1974
- 51 years old
- Condition
- Poor
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 100 ft
- 2 main spans
- Daily traffic
- 4,970
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
14th Ave. N Wtn. over Big Sioux Rv is a prestressed concrete tee beam carrying 14th Ave. N Wtn. over Big Sioux Rv in Codington County, South Dakota. It was built in 1974, so it is 51 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 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. Its operating status is: posted for load restriction.
It carries about 4,970 vehicles a day, roughly 2% of them trucks, projected to reach 6,700 by 2040. The structure is 100 ft (30.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 14th Ave. N Wtn. over Big Sioux Rv built?
It was built in 1974, making it 51 years old in 2025.
What condition is 14th Ave. N Wtn. 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 14th Ave. N Wtn. over Big Sioux Rv carry?
About 4,970 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 14th Ave. N Wtn. over Big Sioux Rv?
The structure is 100 ft (30.5 m) long with a longest span of 49 ft (15 m) and a deck 31 ft wide.
Who owns 14th Ave. N Wtn. over Big Sioux Rv?
It is owned by the County Highway Agency.