8th Street over Boyer River
PoorClosed to trafficHarrison County, Iowa · 000000000 · Structure no. 000000000178090
- Built
- 1900
- 125 years old, rebuilt 1972
- Condition
- Poor
- inspected January 2011
- Type
- Truss - Thru
- Steel
- Length
- 146 ft
- 1 main span
- Daily traffic
- 123
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
8th Street over Boyer River is a steel truss - thru carrying 8th Street over Boyer River in Harrison County, Iowa. It was built in 1900 and reconstructed in 1972, so it is 125 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 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 123 vehicles a day, projected to reach 123 by 2043. The structure is 146 ft (44.5 m) long and 17 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 0 Failed | Out of service and beyond corrective action. |
| Superstructure | 0 Failed | Out of service and beyond corrective action. |
| Substructure | 0 Failed | Out of service and beyond corrective action. |
| Channel and channel protection | 0 Failed | Out of service and beyond corrective action. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 8th Street over Boyer River built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1972.
What condition is 8th Street over Boyer 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 January 2011.
How much traffic does 8th Street over Boyer River carry?
About 123 vehicles per day (2022 count).
How long is 8th Street over Boyer River?
The structure is 146 ft (44.5 m) long with a longest span of 123 ft (37.5 m) and a deck 17 ft wide.
Who owns 8th Street over Boyer River?
It is owned by the City or Municipal Highway Agency.