Smithwick Road over White River
PoorClosed to trafficCounty 102, South Dakota · .75 KM NE of BIA RTE 41 · Structure no. 00000000000A154
- Built
- 1935
- 90 years old
- Condition
- Poor
- inspected July 2021
- Type
- Truss - Thru
- Steel
- Length
- 195 ft
- 1 main span
- Daily traffic
- 10
- 2020 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
Smithwick Road over White River is a steel truss - thru carrying Smithwick Road over White River in County 102, South Dakota. It was built in 1935, so it is 90 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 2 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: closed to all traffic.
It carries about 10 vehicles a day, projected to reach 500 by 2040. The structure is 195 ft (59.5 m) long and 18 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| 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 Smithwick Road over White River built?
It was built in 1935, making it 90 years old in 2025.
What condition is Smithwick Road over White River 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 July 2021.
How much traffic does Smithwick Road over White River carry?
About 10 vehicles per day (2020 count).
How long is Smithwick Road over White River?
The structure is 195 ft (59.5 m) long with a longest span of 66 ft (20 m) and a deck 18 ft wide.
Who owns Smithwick Road over White River?
It is owned by the Bureau of Indian Affairs.